It will not reduce the power consumption running on a pcie 1.x slot. What psu do you have, and what gpu are you looking at. Wattage means nothing, amperage is mainly what you need to look at.
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CPU: Intel Core 2 Quad Q9450 @ 3.90Ghz Custom Water Loop | Mobo: EVGA 790i Ultra SLI | GPU: 9800gtx and GTS250 in SLI| Ram: 4GB(2 x 2gb) 1333Mhz ddr3 | Case: Xclio WTBKAdvanced | Sound: X-fi Fatal1ty Championship, Z-5500 5.1 Surround| HDD: 2x Raid 0 7200.11 500gb | PSU: Zalman ZM-1000HP |OS: Windows 7 Enterprise x64|
Dont skimp on a power supply,if it fails, it usually takes out other components alongside it.
New? Dont forget to read the rules. Heatware
P.M. If interested in Shin Etsu X23-7783D
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