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Test Setup

Does Turbo Boost Help Or Hurt Core i5/i7's Power Efficiency?
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System Hardware
Hardware
Details
Performance Benchmarks
Motherboard (LGA 1156)
Intel DP55KG (Rev. 1.0)
Chipset: Intel P55
BIOS:   KGIBX10J.86A.3456 (08/22/2009)
Motherboard (LGA 775)
MSI P45D3 Neo (Rev. 1.0)
Chipset: Intel P45, ICH10R
BIOS: 4.2 (02/18/2009)
CPU Intel I
Intel Core i5-750 (45nm, 2.66 GHz, 4 x 256KB L2 and 8MB L3 Cache, TDP 95W, Rev. B1)
CPU Intel II
Intel Core i7-870 (45nm, 2.93 GHz, 4 x 256KB L2 and 8MB L3 Cache, TDP 95W, Rev. B1)
CPU Intel III
Intel Core 2 Quad Q8200S (45nm, 2.33 GHz, 4MB L2 Cache, TDP 65W, Rev. R0)
CPU Intel IV
Intel Core 2 Quad Q9550S (45nm, 2.83 GHz, 12MB L2 Cache, TDP 65W, Rev. E0)
CPU Intel V
Intel Core 2 Extreme Q9650 (45nm, 3.00 GHz, 12MB L2 Cache, TDP 130W, Rev. C0)
RAM DDR3 (Dual)
2 x 2GB DDR3-1600 (Corsair CM3X2G1600C9DHX)
2 x 1GB DDR3-2000 (OCZ OCZ3P2000EB1G)
Graphics
Zotac Geforce GTX 260²
GPU: Geforce GTX 260 (576 MHz), Graphics RAM: 896MB DDR3 (1998 MHz), Stream Processors: 216, Shader Clock: 1242 MHz
Hard Drive
Western Digital VelociRaptor, 300GB (WD3000HLFS)
10,000 RPM, SATA/300, 16MB Cache
Blu-Ray Drive
LG GGW-H20L, SATA/150
Power Supply
PC Power & Cooling, Silencer 750EPS12V 750W
System Software and Drivers
Operating System
Windows Vista Enterprise Version 6.0 x64
Service Pack 2 (Build 6000)
Drivers and Settings
AMD Chipset Drivers
Catalyst Control Center 9.4
Intel Chipset Drivers
Chipset Installation Utility Ver. 9.1.1.1015
Intel Storage Drivers
Matrix Storage Drivers Ver. 8.8.0.1009


Intel Core i7-870Intel Core i7-870

Intel’s DP55KG LGA 1156 platformIntel’s DP55KG LGA 1156 platform

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