Current Price $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ 16.02 16.02 16.02 16.02 16.02 16.02 16.02 16.02 16.02 16.02 16.02 16.02 16.02 22.26 16.02 22.26 22.26 22.26 22.26 22.26 22.26 16.02 22.26 22.26 22.26 22.26 22.26 22.26 22.26 16.02 16.02 83.64 16.02 22.26 22.26 85.00 22.26
Unit of Measure EA EA EA EA EA EA EA EA EA EA EA EA EA EA EA EA EA EA EA EA EA EA EA EA EA EA EA EA EA EA EA EA EA EA EA EA EA
ManufacturerName Silicon Mountain Memory Silicon Mountain Memory Silicon Mountain Memory Silicon Mountain Memory Silicon Mountain Memory Silicon Mountain Memory Silicon Mountain Memory Silicon Mountain Memory Silicon Mountain Memory Silicon Mountain Memory Silicon Mountain Memory Silicon Mountain Memory Silicon Mountain Memory Silicon Mountain Memory Silicon Mountain Memory Silicon Mountain Memory Silicon Mountain Memory Silicon Mountain Memory Silicon Mountain Memory Silicon Mountain Memory Silicon Mountain Memory Silicon Mountain Memory Silicon Mountain Memory Silicon Mountain Memory Silicon Mountain Memory Silicon Mountain Memory Silicon Mountain Memory Silicon Mountain Memory Silicon Mountain Memory Silicon Mountain Memory Silicon Mountain Memory Silicon Mountain Memory Silicon Mountain Memory Silicon Mountain Memory Silicon Mountain Memory Silicon Mountain Memory Silicon Mountain Memory
ManufacturerSKU SMAC13040/128 SMAC13130/128 SMAC13148/128 SMAC13436/128 SMAC14716/128 SMAC15262/128 SMAC15342/128 SMAC15386/128 SMAC15408/128 SMAC15470/128 SMAC15492/128 SMAC15536/128 SMAC15554/128 SMAC16034/128 SMAC16070/128 SMAC17080/128 SMAC17246/128 SMAC17284/128 SMAC17322/128 SMAC17360/128 SMAC17394/128 SMAC18194/128 SMAC18248/128 SMAC18292/128 SMAC18326/128 SMAC18410/128 SMAC18428/128 SMAC18464/128 SMAC18482/128 SMAC18562/128 SMAC18604/128 SMAC18880/512 SMAC18940/128 SMAC19034/128 SMAC19088/128 SMAC19092/256 SMAC19176/128
Vendor SKU SMAC19180/256 SMAC19198/128 SMAC19202/256 SMAC19246/256 SMAC19268/256 SMAC19308/128 SMAC19402/256 SMAC19510/256 SMAC19566/128 SMAC19580/128 SMAC19690/128 SMAC19694/256 SMAC19738/256 SMAC19760/256 SMAC19866/128 SMAC19974/128 SMAC19978/256 SMAC20072/128 SMAC20076/256 SMAC20094/128 SMAC20098/256 SMAC20108/256 SMAC20112/128 SMAC20156/128 SMAC20160/256 SMAC20174/512 SMAC20202/512 SMAC20232/128 SMAC20300/256 SMAC20304/512 SMAC20318/256 SMAC20322/512
Product Description 256 MB Upgrade for Acer TravelMate 527TXV 128 MB Upgrade for Acer TravelMate 732TLV 256 MB Upgrade for Acer TravelMate 732TLV 256 MB Upgrade for Acer TravelMate 735TLV 256 MB Upgrade for Acer TravelMate 737TLV 128 MB Upgrade for Acer TravelMate TM602TER 256 MB Upgrade for Acer Veriton 5100T800A 256 MB Upgrade for Acer Veriton 7100T866A 128 MB Upgrade for Acer AcerPower 4300T650B 128 MB Upgrade for Acer AcerPower 8400T550A 128 MB Upgrade for Acer TravelMate 200DX 256 MB Upgrade for Acer TravelMate 200DX 256 MB Upgrade for Acer TravelMate 738TLV 256 MB Upgrade for Acer TravelMate 739TLV 128 MB Upgrade for Acer AcerPower SeT800A 128 MB Upgrade for Acer TravelMate 525TXV 256 MB Upgrade for Acer TravelMate 525TXV 128 MB Upgrade for Acer TravelMate 602TER 256 MB Upgrade for Acer TravelMate 602TER 128 MB Upgrade for Acer TravelMate 600TER 256 MB Upgrade for Acer TravelMate 600TER 256 MB Upgrade for Acer Veriton MB Upgrade for Acer Veriton MB Upgrade for Acer TravelMate 210 Series 256 MB Upgrade for Acer TravelMate 210 Series 512 MB Upgrade for Acer Altos GMB Upgrade for Acer Aspire MB Upgrade for Acer Aspire 6058/MB Upgrade for Acer Veriton MB Upgrade for Acer Veriton MB Upgrade for Acer TravelMate 630 Series (630,632,633,634,636,637) 512 MB Upgrade for Acer TravelMate 630 Series (630,632,633,634,636,637)

Unit of Measure EA EA EA EA EA EA EA EA EA EA EA EA EA EA EA EA EA EA EA EA EA EA EA EA EA EA EA EA EA EA EA EA EA
ManufacturerName Silicon Mountain Memory Silicon Mountain Memory Silicon Mountain Memory Silicon Mountain Memory Silicon Mountain Memory Silicon Mountain Memory Silicon Mountain Memory Silicon Mountain Memory Silicon Mountain Memory Silicon Mountain Memory Silicon Mountain Memory Silicon Mountain Memory Silicon Mountain Memory Silicon Mountain Memory Silicon Mountain Memory Silicon Mountain Memory Silicon Mountain Memory Silicon Mountain Memory Silicon Mountain Memory Silicon Mountain Memory Silicon Mountain Memory Silicon Mountain Memory Silicon Mountain Memory Silicon Mountain Memory Silicon Mountain Memory Silicon Mountain Memory Silicon Mountain Memory Silicon Mountain Memory Silicon Mountain Memory Silicon Mountain Memory Silicon Mountain Memory Silicon Mountain Memory Silicon Mountain Memory
ManufacturerSKU SMAC20358/128 SMAC20368/128 SMAC20382/256 SMAC20386/512 SMAC20418/256 SMAC20422/512 SMAC20426/1 SMAC20444/512 SMAC20462/512 SMAC20476/256 SMAC20480/512 SMAC20498/512 SMAC20556/256 SMAC20560/512 SMAC20632/1 SMAC20676/1 SMAC20742/1 SMAC50262/1 SMAC50342/1 SMAC50370/1 SMAC50398/256 SMAC50402/512 SMAC50416/256 SMAC50420/512 SMAC50424/1 SMAC50560/1 SMAC50606/256 SMAC50610/512 SMAC50624/512 SMAC50664/1 SMAC50704/512 SMAC50730/1 SMAC50774/1
Vendor SKU SMAC50784/256 SMAC50788/512 SMAC50810/512 SMAC50824/128 SMAC50836/1 SMAC50868/512 SMAC50890/1 SMAC50904/256 SMAC50908/512 SMAC50912/1 SMAC50926/256 SMAC50930/1 SMAC50944/512 SMAC50988/256 SMAC50992/512 SMAC50996/1 SMAC51006/256 SMAC51010/512 SMAC51028/512 SMAC51032/1 SMAC51042/256 SMAC51046/512 SMAC51072/512 SMAC51076/512 SMAC51086/256 SMAC51094/1 SMAC51126/512 SMAC51140/512 SMAC51154/512 SMAC51158/1 SMAC51176/1 SMAC51194/1 SMAC51212/1 SMAC51244/1 SMAC51254/512 SMAC51258/1 SMAC51272/512 SMAC51290/512 SMAC51294/1 SMAC51304/256 SMAC51312/1 SMAC51322/256 SMAC51326/512 SMAC51330/1 SMAC51348/1
Product Name Memory Memory Memory Memory Memory Memory Memory Memory Memory Memory Memory Memory Memory Memory Memory Memory Memory Memory Memory Memory Memory Memory Memory Memory Memory Memory Memory Memory Memory Memory Memory Memory Memory Memory Memory Memory Memory Memory Memory Memory Memory Memory Memory Memory Memory

Unit of Measure EA EA EA EA EA EA EA EA EA EA EA EA EA EA EA EA EA EA EA EA EA EA EA EA EA EA EA EA EA EA EA EA EA EA EA EA EA EA EA EA EA EA EA EA EA EA EA
ManufacturerName Silicon Mountain Memory Silicon Mountain Memory Silicon Mountain Memory Silicon Mountain Memory Silicon Mountain Memory Silicon Mountain Memory Silicon Mountain Memory Silicon Mountain Memory Silicon Mountain Memory Silicon Mountain Memory Silicon Mountain Memory Silicon Mountain Memory Silicon Mountain Memory Silicon Mountain Memory Silicon Mountain Memory Silicon Mountain Memory Silicon Mountain Memory Silicon Mountain Memory Silicon Mountain Memory Silicon Mountain Memory Silicon Mountain Memory Silicon Mountain Memory Silicon Mountain Memory Silicon Mountain Memory Silicon Mountain Memory Silicon Mountain Memory Silicon Mountain Memory Silicon Mountain Memory Silicon Mountain Memory Silicon Mountain Memory Silicon Mountain Memory Silicon Mountain Memory Silicon Mountain Memory Silicon Mountain Memory Silicon Mountain Memory Silicon Mountain Memory Silicon Mountain Memory Silicon Mountain Memory Silicon Mountain Memory Silicon Mountain Memory Silicon Mountain Memory Silicon Mountain Memory Silicon Mountain Memory Silicon Mountain Memory Silicon Mountain Memory Silicon Mountain Memory Silicon Mountain Memory
ManufacturerSKU SMAC52002/1 SMAC52016/512 SMAC52020/1 SMAC52056/1 SMAC52078/256 SMAC52082/512 SMAC52084/256 SMAC52086/1 SMAC52088/512 SMAC52092/1 SMAC52102/512 SMAC52106/1 SMAC52110/256 SMAC52124/512 SMAC52146/256 SMAC52196/512 SMAC52200/1 SMAC52228/256 SMAC52232/512 SMAC52236/1 SMAC52314/1 SMAC52410/1 SMAC52458/1 SMAC52476/1 SMAC52608/1 SMAC52812/1 SMAC52964/512 SMAC52968/1 SMAC52986/1 SMAC53036/512 SMAC53040/1 SMAC53054/1 SMAC53076/1 SMAC53108/512 SMAC53112/1 SMAC53126/256 SMAC53130/512 SMAC53134/1 SMAC53152/1 SMAC53178/512 SMAC53182/1 SMAC53184/512 SMAC53224/1 SMAC53228/2 SMAC53246/1 SMAC53264/1 SMAC53282/1
Vendor SKU SMAC53322/1 SMAC53332/512 SMAC53336/1 SMAC53340/2 SMAC53358/1 SMAC53394/1 SMAC53408/512 SMAC53412/1 SMAC53444/1 SMAC53448/2 SMAC53462/1 SMAC53476/1 SMAC53490/1 SMAC53526/2 SMAC53544/2 SMAC53580/2 SMAC53626/1 SMAC53630/2 SMAC53680/1 SMAC53684/2 SMAC53698/1 SMAC53702/2 SMAC53716/1 SMAC53744/1 SMAC53766/1 SMAC53780/1 SMAC53784/2 SMAC53786/1 SMAC53800/1 SMAC53930/512 SMAC53934/1 SMAC53948/1 SMAC53952/2 SMAC54002/1 SMAC54020/2 SMAC54034/1 SMAC54038/2 SMAC54056/1 SMAD10030/128 SMAF10004/128 SMAK644/256 SMAK648/512 SMAK666/1 SMAL10696/256 SMAP11664/128 SMAP11682/128 SMAP11686/256 SMAP11830/128
Product Description 1 GB Upgrade for Acer Aspire ASLMB Upgrade for Acer Aspire GB Upgrade for Acer Aspire GB Upgrade for Acer Aspire GB Upgrade for Acer TravelMate 3002 Series 1 GB Upgrade for Acer Aspire 5040 Series 512 MB Upgrade for Acer Aspire GB Upgrade for Acer Aspire GB Upgrade for Acer Aspire 5100 Series 2 GB Upgrade for Acer Aspire 5100 Series 1 GB Upgrade for Acer Aspire 7110 Series 7111, GB Upgrade for Acer TravelMate 2480 Series 1 GB Upgrade for Acer Aspire ASLGB Upgrade for Acer TravelMate GB Upgrade for Acer Aspire 5570 Series 2 GB Upgrade for Acer TravelMate GB Upgrade for Acer Aspire GB Upgrade for Acer Aspire GB Upgrade for Acer Aspire GB Upgrade for Acer Aspire GB Upgrade for Acer Aspire GB Upgrade for Acer Aspire GB Upgrade for Acer Aspire GB Upgrade for Acer AcerPower GB Upgrade for Acer AcerPower FH 1 GB Upgrade for Acer AcerPower SGB Upgrade for Acer AcerPower SGB Upgrade for Acer Aspire LGB Upgrade for Acer Aspire EMB Upgrade for Acer Aspire GB Upgrade for Acer Aspire GB Upgrade for Acer Aspire 9410 Series 2 GB Upgrade for Acer Aspire 9410 Series 1 GB Upgrade for Acer Aspire 5502WXCi 2 GB Upgrade for Acer Aspire 4520 Notebook 1 GB Upgrade for Acer Extensa GB Upgrade for Acer Extensa GB Upgrade for Acer Aspire 1641WLMi 128 MB Upgrade for Adaptec SCSI RAID 2100S 128 MB Upgrade for Ali P5FMB Upgrade for Amptron K7-810XLM 512 MB Upgrade for Amptron K7-810XLM 1 GB Upgrade for Amptron ECS K8M800-MMB Upgrade for ALR ALR MB Upgrade for Apple PowerBook G3 233-292MHz 128 MB Upgrade for Apple Power Mac G3 Beige Tower 233-333MHz 256 MB Upgrade for Apple Power Mac G3 Beige Tower 233-333MHz 128 MB Upgrade for Apple iMac G3 (Orig Model/Tray Load) 233-333MHz

Current Price $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ 117.39 19.58 30.25 103.22 16.02 23.14 51.61 16.02 23.14 51.61 20.69 31.04 50.69 34.41 117.39 26.90 60.00 16.02 23.14 51.61 26.70 17.80 43.60 22.26 85.00 26.70
Unit of Measure EA EA EA EA EA EA EA EA EA EA EA EA EA EA EA EA EA EA EA EA EA EA EA EA EA EA
ManufacturerName Silicon Mountain Memory Silicon Mountain Memory Silicon Mountain Memory Silicon Mountain Memory Silicon Mountain Memory Silicon Mountain Memory Silicon Mountain Memory Silicon Mountain Memory Silicon Mountain Memory Silicon Mountain Memory Silicon Mountain Memory Silicon Mountain Memory Silicon Mountain Memory Silicon Mountain Memory Silicon Mountain Memory Silicon Mountain Memory Silicon Mountain Memory Silicon Mountain Memory Silicon Mountain Memory Silicon Mountain Memory Silicon Mountain Memory Silicon Mountain Memory Silicon Mountain Memory Silicon Mountain Memory Silicon Mountain Memory Silicon Mountain Memory
ManufacturerSKU SMAP13762/512 SMAP13776/128 SMAP13780/256 SMAP13784/512 SMAP13790/128 SMAP13794/256 SMAP13798/512 SMAP13860/128 SMAP13864/256 SMAP13868/512 SMAP13878/256 SMAP13882/512 SMAP13886/1 SMAP14238/256 SMAP14242/512 SMAP14938/256 SMAP14942/512 SMAP14952/128 SMAP14956/256 SMAP14960/512 SMAP14970/512 SMAP14974/256 SMAP14982/1 SMAP15116/128 SMAP15120/256 SMAP15130/512
Vendor SKU SMAP15178/256 SMAP15182/512 SMAP15200/256 SMAP15204/512 SMAP15266/512 SMAP15270/256 SMAP15310/256 SMAP15314/512 SMAP15318/1 SMAP15332/1 SMAP15338/256 SMAP15342/512 SMAP15344/512 SMAP15352/256 SMAP15356/512 SMAP15414/512 SMAP15428/256 SMAP15432/512 SMAP15442/128 SMAP15446/256 SMAP15450/512 SMAP15464/256 SMAP15468/512 SMAP15482/256 SMAP15486/512 SMAP15490/1 SMAP15526/256 SMAP15530/512 SMAP15534/1
Product Description 256 MB Upgrade for Apple PowerBook G4 Titanium 400-500MHz 512 MB Upgrade for Apple PowerBook G4 Titanium 400-500MHz 256 MB Upgrade for Apple PowerBook G4 Titanium 667MHz 512 MB Upgrade for Apple PowerBook G4 Titanium 667MHz 512 MB Upgrade for Apple PowerBook G4 Titanium 800-1GHz 256 MB Upgrade for Apple PowerBook G4 Titanium 800-1GHz 256 MB Upgrade for Apple PowerBook G4 (12-inch Display) 867MHz 512 MB Upgrade for Apple PowerBook G4 (12-inch Display) 867MHz 1 GB Upgrade for Apple PowerBook G4 (12inch Display) 867MHz 1 GB Upgrade for Apple PowerBook G4 17inch (PC2700) 1-1.67GHz 256 MB Upgrade for Apple iMac G4 15-inch 2003 (PC133) 800MHz 512 MB Upgrade for Apple iMac G4 15-inch 2003 (PC133) 800MHz 512 MB Upgrade for Apple PowerBook G4 17-inch (PC2700) 1-1.67GHz 256 MB Upgrade for Apple iMac G4 Flat Panel (PC2100) 1GHz 512 MB Upgrade for Apple iMac G4 Flat Panel (PC2100) 1GHz 512 MB Upgrade for Apple Xserve (1.33GHz/Dual 1.33GHz) Slot Loading 256 MB Upgrade for Apple Power Mac G4 Dual 533-1GHz (3 slots) 512 MB Upgrade for Apple Power Mac G4 Dual 533-1GHz (3 slots) 128 MB Upgrade for Apple eMac G4 7001.0GHz (ATI Graphics) 256 MB Upgrade for Apple eMac G4 7001.0GHz (ATI Graphics) 512 MB Upgrade for Apple eMac G4 7001.0GHz (ATI Graphics) 256 MB Upgrade for Apple PowerBook G4 (15-inch Monitor) SDRAM 867MHz 512 MB Upgrade for Apple PowerBook G4 (15-inch Monitor) SDRAM 867MHz 256 MB Upgrade for Apple Power Mac G5 1.6GHz-2.0GHz DDR (4 slot) 512 MB Upgrade for Apple Power Mac G5 1.6GHz-2.0GHz DDR (4 slot) 1 GB Upgrade for Apple Power Mac G5 1.6GHz-2.0GHz DDR (4 slot) 256 MB Upgrade for Apple Power Mac G5 1.8GHz-2.7GHz DDR (8 slot) 512 MB Upgrade for Apple Power Mac G5 1.8GHz-2.7GHz DDR (8 slot) 1 GB Upgrade for Apple Power Mac G5 1.8GHz-2.7GHz DDR (8 slot)

Current Price $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ 87.20 16.02 23.14 51.61 17.80 25.81 20.24 29.35 66.79 20.24 29.35 62.07 111.73 186.22 29.35 66.79 20.24 29.35 66.79 26.70 43.60 26.70 43.60 29.35 66.79 20.24 14.24 21.36 48.05
ManufacturerSKU SMAP15546/2K SMAP15566/128 SMAP15570/256 SMAP15574/512 SMAP15632/256 SMAP15640/512 SMAP15654/256 SMAP15658/512 SMAP15662/1 SMAP15676/256 SMAP15680/512 SMAP15730/512K SMAP15734/1K SMAP15738/2K SMAP15756/512 SMAP15760/1 SMAP15792/256 SMAP15796/512 SMAP15800/1 SMAP15900/512 SMAP15904/1 SMAP15972/512 SMAP15976/1 SMAP15986/512 SMAP15990/1 SMAP15994/256 SMAP16008/512 SMAP16012/1 SMAP16016/2
Vendor SKU SMAP16030/512 SMAP16034/1 SMAP16044/1 SMAP16048/2 SMAP16052/512 SMAP16056/512 SMAP16060/1 SMAP16064/2 SMAP16074/512 SMAP16078/1 SMAP16100/512 SMAP16104/1 SMAP16108/2 SMAP16110/512 SMAP16114/1 SMAP16118/2 SMAP16128/512 SMAP16132/1 SMAP16142/1K SMAP16146/2K SMAP16160/512 SMAP16164/1 SMAP16174/512 SMAP16178/1 SMAP16182/2 SMAP16186/2 SMAP16194/4 SMAP16196/1 SMAP16200/2
Product Description 512 MB Upgrade for Apple PowerBook G4 (15-inch Monitor) DDR2 1.67GHz 1 GB Upgrade for Apple PowerBook G4 (15inch Monitor) DDR2 1.67GHz 1 GB Upgrade for Apple Power Mac G5 2.0GHz-2.5GHz DDR2 (8 slot) 2 GB Upgrade for Apple Power Mac G5 2.0GHz-2.5GHz DDR2 (8 slot) 512 MB Upgrade for Apple Power Mac G5 2.0GHz-2.5GHz DDR2 (8 slot) 512 MB Upgrade for Apple Power Mac G5 2.0GHz-2.5GHz DDR2 (8 slot) 1 GB Upgrade for Apple Power Mac G5 2.0GHz-2.5GHz DDR2 (8 slot) 2 GB Upgrade for Apple Power Mac G5 2.0GHz-2.5GHz DDR2 (8 slot) 512 MB Upgrade for Apple PowerBook G4 17-inch (PC2-4200) 1.67GHz 1 GB Upgrade for Apple PowerBook G4 17inch (PC2-4200) 1.67GHz 512 MB Upgrade for Apple iMac G5 2.1GHz 20-inch (iSight) (DDR2) 1 GB Upgrade for Apple iMac G5 2.1GHz 20inch (iSight) (DDR2) 2 GB Upgrade for Apple iMac G5 2.1GHz 20inch (iSight) (DDR2) 512 MB Upgrade for Apple MacBook Pro 1.67-2.33GHz 1 GB Upgrade for Apple MacBook Pro 1.672.33GHz 2 GB Upgrade for Apple MacBook Pro 1.672.33GHz 512 MB Upgrade for Apple iMac Intel Core Duo 1.83GHz or 2GHz 17-inch, 20-inch 1 GB Upgrade for Apple iMac Intel Core Duo 1.83GHz or 2GHz 17-inch, 20-inch 1 GB Kit for Apple Mac Mini 1.5GHz1.86GHz (Intel Based) 2 GB Kit for Apple Mac Mini 1.5GHz1.86GHz (Intel Based) 512 MB Upgrade for Apple MacBook 1.832.16GHz 1 GB Upgrade for Apple MacBook 1.832.16GHz 512 MB Upgrade for Apple Mac Pro 2.03.6GHz Dual/Quad Xeon 1 GB Upgrade for Apple Mac Pro 2.0-3.6GHz Dual/Quad Xeon 2 GB Upgrade for Apple Mac Pro 2.0-3.6GHz Dual/Quad Xeon 2 GB Upgrade for Apple Mac Pro 2.0-3.6GHz Dual/Quad Xeon 4 GB Upgrade for Apple Mac Pro 2.0-3.6GHz Dual/Quad Xeon 1 GB Upgrade for Apple xServe 2.0-3.0GHz Dual Xeon 2 GB Upgrade for Apple xServe 2.0-3.0GHz Dual Xeon
Current Price $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ 16.19 26.31 21.36 48.05 14.24 26.70 30.25 71.19 16.19 26.31 14.24 21.36 40.04 16.19 26.31 45.54 16.19 26.31 32.38 52.62 16.19 26.31 58.73 74.75 101.44 101.44 355.94 65.85 80.09

Current Price $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ 16.02 16.02 16.02 16.02 16.02 16.02 16.02 16.02 16.02 16.02 16.02 16.02 16.02 16.02 16.02 16.02 16.02 16.02 16.02 16.02 16.02 16.02 16.02 16.02 16.02 16.02 23.14 16.02 23.14
ManufacturerSKU SMHP20034/128 SMHP20052/128 SMHP20070/128 SMHP20088/128 SMHP20106/128 SMHP20124/128 SMHP20142/128 SMHP20160/128 SMHP20178/128 SMHP20196/128 SMHP20214/128 SMHP20232/128 SMHP20250/128 SMHP20268/128 SMHP20286/128 SMHP20304/128 SMHP20322/128 SMHP20340/128 SMHP20358/128 SMHP20376/128 SMHP20394/128 SMHP20412/128 SMHP20430/128 SMHP20448/128 SMHP20466/128 SMHP20484/128 SMHP20488/256 SMHP20506/128 SMHP20510/256
Vendor SKU SMHP20532/256 SMHP20550/128 SMHP20554/256 SMHP20572/128 SMHP20576/256 SMHP20598/256 SMHP20634/128 SMHP20778/128 SMHP20782/256 SMHP20786/256 SMHP20826/128 SMHP20830/256 SMHP20848/128 SMHP20944/256
Product Name Memory Memory Memory Memory Memory Memory Memory Memory Memory Memory Memory Memory Memory Memory
Product Description 256 MB Upgrade for Hewlett Packard Pavilion 9688C 128 MB Upgrade for Hewlett Packard Pavilion 9690C 256 MB Upgrade for Hewlett Packard Pavilion 9690C 128 MB Upgrade for Hewlett Packard Pavilion 9694C 256 MB Upgrade for Hewlett Packard Pavilion 9694C 256 MB Upgrade for Hewlett Packard Pavilion 9695C 128 MB Upgrade for Hewlett Packard Pavilion Notebook NMB Upgrade for Hewlett Packard Vectra VLi256 MB Upgrade for Hewlett Packard Vectra VLi256 MB Upgrade for Hewlett Packard Vectra VLi128 MB Upgrade for Hewlett Packard Vectra VLi8 400, DT-MB Upgrade for Hewlett Packard Vectra VLi8 400, DT-MB Upgrade for Hewlett Packard Vectra VL6 Series MB Upgrade for Hewlett Packard Kayak XU Series 04xx and Kayak XW Series 04xx 128 MB Upgrade for Hewlett Packard Kayak XA MB Upgrade for Hewlett Packard Kayak XA MB Upgrade for Hewlett Packard Kayak XA MB Upgrade for Hewlett Packard Kayak XM256 MB Upgrade for Hewlett Packard OmniBook FMB Upgrade for Hewlett Packard OmniBook FMB Upgrade for Hewlett Packard OmniBook FMB Upgrade for Hewlett Packard OmniBook FMB Upgrade for Hewlett Packard OmniBook FMB Upgrade for Hewlett Packard OmniBook FMB Upgrade for Hewlett Packard OmniBook FMB Upgrade for Hewlett Packard OmniBook FMB Upgrade for Hewlett Packard OmniBook FMB Upgrade for Hewlett Packard OmniBook F2091
Current Price $ $ $ $ $ $ $ $ $ $ $ $ $ $ 23.14 16.02 23.14 16.02 23.14 23.14 22.26 16.02 30.25 23.14 16.02 23.14 16.02 34.49
Unit of Measure EA EA EA EA EA EA EA EA EA EA EA EA EA EA

Product Description 256 MB Upgrade for Hewlett Packard Pavilion XT846, XTMB Upgrade for Hewlett Packard Pavilion XPMB Upgrade for Hewlett Packard Pavilion XPMB Upgrade for Hewlett Packard Pavilion XLMB Upgrade for Hewlett Packard Pavilion XLMB Upgrade for Hewlett Packard Pavilion XLMB Upgrade for Hewlett Packard Pavilion XLMB Upgrade for Hewlett Packard Pavilion XLMB Upgrade for Hewlett Packard Pavilion XGMB Upgrade for Hewlett Packard Pavilion XGMB Upgrade for Hewlett Packard Pavilion XEMB Upgrade for Hewlett Packard Pavilion XEMB Upgrade for Hewlett Packard Pavilion XEMB Upgrade for Hewlett Packard Pavilion XEMB Upgrade for Hewlett Packard Pavilion ctMB Upgrade for Hewlett Packard Pavilion XEMB Upgrade for Hewlett Packard Pavilion MB Upgrade for Hewlett Packard Pavilion Notebook ze5200 Series 512 MB Upgrade for Hewlett Packard Pavilion Notebook ze5200 Series 256 MB Upgrade for Hewlett Packard Pavilion MB Upgrade for Hewlett Packard Pavilion GB Upgrade for Hewlett Packard Workstation xwMB Upgrade for Hewlett Packard Workstation xwMB Kit for Hewlett Packard Workstation xwGB Kit for Hewlett Packard Workstation xwGB Kit for Hewlett Packard Workstation xwGB Kit for Hewlett Packard Workstation xwMB Upgrade for Hewlett Packard Pavilion Notebook zt1260 (DDR)
Current Price $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ 23.14 23.14 23.14 16.02 23.14 16.02 23.14 23.14 23.14 23.14 16.02 23.14 16.02 23.14 23.14 23.14 16.02 20.24 29.35 23.14 23.14 73.04 54.78 60.86 77.09 121.73 332.72 29.35
ManufacturerSKU SMHP35784/256 SMHP35798/256 SMHP35812/256 SMHP35844/128 SMHP35848/256 SMHP35862/128 SMHP35866/256 SMHP35880/256 SMHP35912/256 SMHP35926/256 SMHP35940/128 SMHP35944/256 SMHP35972/128 SMHP35976/256 SMHP36142/256 SMHP36262/256 SMHP36342/128 SMHP36448/256 SMHP36452/512 SMHP36494/256 SMHP36618/256 SMHP36826/1 SMHP36830/512 SMHP36840/512K SMHP36844/1K SMHP36848/2K SMHP36852/4K SMHP36870/512

Vendor SKU SMHP37326/128

SMHP37330/256
SMHP37400/128 SMHP37434/256 SMHP37498/256 SMHP37540/256 SMHP37610/128 SMHP37628/128 SMHP37632/256 SMHP37768/256 SMHP37772/512 SMHP37776/1 SMHP37790/512 SMHP37794/1 SMHP37802/256 SMHP38026/512 SMHP38298/256 SMHP38302/512 SMHP38306/1 SMHP38326/256 SMHP38330/512 SMHP38334/1 SMHP38452/256 SMHP38498/128 SMHP38502/256 SMHP38506/512 SMHP38526/256 SMHP38568/128
Product Description 128 MB Upgrade for Hewlett Packard Pavilion 9600 (Consumer Configured SDRAM Models) 256 MB Upgrade for Hewlett Packard Pavilion 9600 (Consumer Configured SDRAM Models) 128 MB Upgrade for Hewlett Packard Pavilion 9692C 256 MB Upgrade for Hewlett Packard Pavilion MB Upgrade for Hewlett Packard Pavilion MB Upgrade for Hewlett Packard Pavilion MB Upgrade for Hewlett Packard Pavilion MB Upgrade for Hewlett Packard Pavilion 9720 (SDRAM) 256 MB Upgrade for Hewlett Packard Pavilion 9720 (SDRAM) 256 MB Upgrade for Hewlett Packard Pavilion 503w 512 MB Upgrade for Hewlett Packard Pavilion 503w 1 GB Upgrade for Hewlett Packard Pavilion 503w 512 MB Upgrade for Hewlett Packard Pavilion 542x 1 GB Upgrade for Hewlett Packard Pavilion 542x 256 MB Upgrade for Hewlett Packard Pavilion 542x 512 MB Upgrade for Hewlett Packard Pavilion MB Upgrade for Hewlett Packard Pavilion 553x 512 MB Upgrade for Hewlett Packard Pavilion 553x 1 GB Upgrade for Hewlett Packard Pavilion 553x 256 MB Upgrade for Hewlett Packard Business Desktop DMB Upgrade for Hewlett Packard Business Desktop DGB Upgrade for Hewlett Packard Business Desktop DMB Upgrade for Hewlett Packard Pavilion MB Upgrade for Hewlett Packard OmniBook XE3L 256 MB Upgrade for Hewlett Packard OmniBook XE3L 512 MB Upgrade for Hewlett Packard OmniBook XE3L 256 MB Upgrade for Hewlett Packard Pavilion bg814, bg833, bg834, bgMB Upgrade for Hewlett Packard Pavilion XT921, XT923

Current Price $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ 20.24 29.35 17.80 26.70 26.70 43.60 16.19 26.31 16.19 26.31 14.24 17.80 26.70 43.60 66.79 66.79 19.55 31.76 43.60 8.10 15.18 20.24 29.35 17.80 26.70 43.60 29.35 66.79 29.35
ManufacturerSKU SMHP58308/256 SMHP58312/512 SMHP58322/256 SMHP58326/512 SMHP58348/512 SMHP58352/1 SMHP58370/512 SMHP58374/1 SMHP58382/512 SMHP58386/1 SMHP58388/512 SMHP58456/256 SMHP58460/512 SMHP58464/1 SMHP58486/1 SMHP58526/1 SMHP58540/512 SMHP58544/1 SMHP58584/1 SMHP58602/512 SMHP58628/1 SMHP58638/256 SMHP58642/512 SMHP58656/256 SMHP58660/512 SMHP58664/1 SMHP58678/512 SMHP58682/1 SMHP58696/512
Vendor SKU SMHP58700/1 SMHP58732/256 SMHP58742/256 SMHP58746/512 SMHP58750/128 SMHP58770/1 SMHP58778/512 SMHP58788/256 SMHP58792/512 SMHP58796/1 SMHP58814/512 SMHP58818/1 SMHP58828/512 SMHP58832/1 SMHP58848/512 SMHP58850/128 SMHP58852/1 SMHP58857/1 SMHP58864/512 SMHP58868/1 SMHP58868/256 SMHP58872/512 SMHP58876/1 SMHP58876/2 SMHP58890/512 SMHP58894/1 SMHP58908/512 SMHP58912/1 SMHP58922/256
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EECS 322 Computer Architecture

Benchmarks

Instructor: Francis G. Wolff wolff@eecs.cwru.edu Case Western Reserve University This presentation uses powerpoint animation: please viewshow CWRU EECS 322 1

SPEC 2000 FAQ

What is SPEC CPU2000?
Reference: http://www.specbench.org/
A non-profit group that includes computer vendors, systems integrators, universities and consultants from around the world. What do CINT2000 and CFP2000 measure? Being compute-intensive benchmarks, they measure performance of the (1) computer's processor, (2) memory architecture and (3) compiler. It is important to remember the contribution of the latter two components -- performance is more than just the processor. What is not measured? The CINT2000 and CFP2000 benchmarks do not stress: I/O (disk drives), networking or graphics.CWRU EECS 322
SPECint2000 (Number of processors = 1)
Company System Clock, CPU SPEC 298 L2 cache
256KB(I+D) 256KB(I+D) 256KB(I+D) 8M(I+D) 256KB(I+D) 256KB(I+D) 4M(I+D)
Dell Precision Ws 330 1.50 GHz P4 Dell Precision Ws 330 1.40 GHz P4 Intel VC820 SGI SGI 2200 2X Intel SE440BX-2 Intel SE440BX-2 SGI Origin200 1.13 GHz P3 400MHz R12k 800 MHz PMHz P3 360MHz R12k
Pitfall: Using MIPS or Clock speed as performance metric Pitfall: Using MIPS or Clock speed as performance metric

CWRU EECS 322 3

Doom benchmark results
Reference: http://www.complang.tuwien.ac.at/misc/doombench.html Doom,Quake games: http://www.idsoftware.com
"The Doom benchmark is more important than SPEC" "The Doom benchmark is more important than SPEC" (paraphrased) John Hennessy in his plenary talk at FCRC '99. (paraphrased) John Hennessy in his plenary talk at FCRC '99. avg. fps 304.3 201.9 197.1 196.0 190.5 188.1 Processor MIPS R4400-250 PentiumIIIE-800 PentiumIIIE-787 MIPS R10000-195 PentiumIII-644 PentiumIII-800 L1 Cache 16+16k 16+16K 16+16K 32+32k 16+16K 16+16K Mother Board SGI Indigo2 ASUS P3B-F Abit BH6R1.01 SGI Indigo2 Abit BX6 2,0 ASUS CU4VX
Wow! 250 Mhz MIPS beats the 800 Mhz Pentium. avg. fps The average number of video frames per second

CWRU EECS 322 4

Benchmark wars: Internet Servers
Sm@rt Reseller's January 1999 article, Linux Is The Web Servers Choicesaid "Linux with Apache beats NT 4.0 with IIS, hands down."
http://www.kegel.com/nt-linux-benchmarks.html
In March 1999, Microsoft commissioned Mindcraft to carry out a comparison between NT and Linux.

CWRU EECS 322 5

Benchmark Wars: Linux/Solaris
PC Magazine, September 1999 Sun Microsystems SPARC architecture now jumps in!
.found that NT did a lot more disk accesses than Linux, which let Linux score about 50% better than NT.

CWRU EECS 322 6

Performance
To maximize performance, we want to minimize response time or execution time Performance = 1 Execution time
To compare the relative performance, n, between machine X and Y, we use PerformanceX = PerformanceY Execution timeX

CWRU EECS 322 7

Execution timeY =n

Measuring Performance

Total program clock cycles executed Execution time = Clock frequency rate (MHz) Total program instructions exec x CPI = Clock frequency rate (MHz)
CPI = Average number of clock cycles per instruction

Clock cycle time (us) =

1 Clock frequency rate (Mhz)

CWRU EECS 322 8

CPI Example
Given the following instruction class execution times: alu=6ns, loads=8ns, stores=7ns, branches=5ns, jumps=2ns CPI = (6ns+8ns+7ns+5ns+2ns)/5 = 28/5 = 5.6 ns = (0.2*6ns+0.2*8ns+0.2*7ns+0.2*5ns+0.2*2ns) = 5.6 ns
Given the following instruction class execution times: alu=60%, loads=20%, stores=10%, branches=5%, jumps=5% alu=6ns, loads=8ns, stores=7ns, branches=5ns, jumps=2ns CPI = (0.6*6ns+0.2*8ns+0.1*7ns+0.05*5ns+0.05*2ns) = 6.25

CWRU EECS 322 9

Performance example
Benchmark A Benchmark A B B L Total L Total 2 ====6

(PH page 64)

Instruction class Instruction class ALU ALU Branches Branches Load/Stores Load/Stores

CPI CPI 3 3

Total CPU cycles1 = (2xA) + (1xB) + (2xL) = (2x1) + (1x2) + (2x3) = 10 cycles CPI1 = 10 cycles/5 = 2 average cycles per instruction Total CPU cycles2 = (4x1) + (1x2) + (1x3) = 9 cycles CPI2 = 9 cycles/6 = 1.5 average cycles per instruction Benchmark 2 executed more instructions, but was faster.

CWRU EECS 322 10

MIPS Performance example
Benchmark A B Benchmark A B Compiler 1 5xCompiler 1 5xCompiler 1099 Compiler 10 L L Total Total =7x1099 =7x10 =12x1099 =12x10

(PH page 78)

Total CPU cycles1 = (5xA) + (1xB) + (1xL) = 10x109 cycles Execution time1 = 10x109 cycles/500Mhz = 20 seconds CPI1 = 10x109 cycles/ 7x109 = 1.43 MIPS1 = Clock rate/CPI = 500Mhz/1.43 = 350 MIPS Total CPU cycles2 = (10xA)+(1xB)+(1xL) = 15x109 cycles Execution time2 = 15x109 cycles/500Mhz = 30 seconds CPI2 = 15x109 cycles/12x109=1.25 MIPS2= 500Mhz/1.25 = 400 MIPS Although MIPS2 > MIPS1 but execution time is unexpected!322 CWRU EECS
Amdahls Law (the law of dimishing returns)
Execution Time After Improvement = Execution Time Unaffected + (Execution Time Affected / Amount of Improvement) Example: "Suppose a program runs in 100 seconds on a machine, with multiply responsible for 80 seconds of this time. How much do we have to improve the speed of multiplication if we want the program to run 4 times faster?" How about making it 5 times faster? Principle: Make the common case fast Well, lets speed up the multiply!CWRU EECS 322
Execution Time After Improvement = (Execution Time Affected / Amount of Improvement) + Execution Time Unaffected Let Execution Time After Improvement be old time / speed up = 100 seconds / 5 times faster = 20 seconds = Execution Time needed = 80 seconds/n + (100-80 seconds) Equating both sides 20 = 80 seconds/n 0 = 80 seconds/n + (100-80 seconds)
No amount of multiplier speed up can make a 5 fold increase

CWRU EECS 322 13

Sources of improvement
For a given instruction set architecture, increases in CPU performance can come from three sources 1. Increase the clock rate 2. Improve the hardware organization that lower the CPI 3. Compiler enhancements that lower the instruction count or generate instructions with a lower average CPI In addition to the above, in order to improve CPU efficiency of software benchmarks. Improve the software organization (data structures, )

CWRU EECS 322 14

Performance Summary
Execution time is the only valid and unimpeachable measure of performance. Any measure that summarizes performance should reflect execution time. Designers must balance high-performance with low-cost. You should not always believe everything you read! Read carefully! (see newspaper articles, e.g., Exercise 2.37)

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