Undervolting Your Phenom II And Core 2 Processors

Test Setup

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System Hardware
CPU AMDAMD Phenom II X4 955 (45 nm, 3.2 GHz, 4x 512 KB L2 and 6 MB L3 Cache, TDP 125 W, Rev. C2)
CPU IntelIntel Core 2 Extreme QX9650 (45 nm, 3.0 GHz, 12 MB L2 Cache, TDP 130 W, Rev. D0)
Motherboard (socket 775)MSI P45D3 Neo-F (Rev. 1.0) Chipset: Intel P45, ICH10R BIOS: 4.2 (02/18/2009)
Motherboard (Socket AM3)MSI 790FX-GD70 (Rev. 1.0) Chipset: AMD 790FX, SB750 BIOS: 1.3 (04/01/2009)
RAM DDR3 (Tripple)2 x 2 GB DDR3-1600 (Corsair TR3X6G-1600C8D 8-8-8-24)
GraphicsZotac Geforce GTX 260² GPU: Geforce GTX 260 (576 MHz) Graphics RAM: 896 MB DDR3 (1998 MHz) Stream Processors: 216 Shader Clock: 1242 MHz
Hard DriveWestern Digital VelociRaptor, 300 GB (WD3000HLFS) 10,000 RPM, SATA/300, 16 MB Cache
Blu-Ray DriveLG GGW-H20L, SATA/150
Power SupplyPC Power & Cooling, Silencer 750EPS12V 750W
AMD Software and Drivers
Operating SystemWindows Vista Enterprise Version 6.0 x64 Service Pack 2 (Build 6000)
Drivers and Settings
AMD Chipset DriversCatalyst 9.4
Nvidia GeForce DriverGeForce 185.85
Intel Chipset DriversChipset Installation Utility Ver.
Intel Storage DriversMatrix Storage Drivers Ver.
Benchmarks and Settings
PCMark VantageVersion: 1.00 PCMark Benchmark
Prime 95Version: 25.7 In-place large FFTs