Six-Core Analysis: AMD’s Phenom II X6 Gets Scaled Down

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What’s the real benefit of six cores versus five, four, three, two, or one? This article looks at the performance, power, and efficiency of AMD's Thuban-based six-core Phenom II X6 1090T processor running with several different core configurations.

Test Setup And Benchmark Settings

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System Hardware
Hardware Details
Performance Benchmarks
Motherboard (Socket AM3) Asus Crosshair IV Formula (Rev. 1.0), Chipset: AMD 890FX, BIOS: 0701 (04/02/2010)
CPU AMD I AMD Phenom II X6 1090T (45 nm, 3.2 GHz, 6 x 512KB L2 and 6MB L3 Cache, TDP 125W, Rev. C3)
RAM DDR3 2 x 2GB DDR3-1333 (OCZ3G2000LV4GK 8-8-8-24)
Graphics Sapphire Radeon HD 5850 GPU: Cypress (725 MHz), Graphics RAM: 1,024MB GDDR5 (2,000 MT/s), Stream Processors: 1,440
Hard Drive Western Digital VelociRaptor, 300GB (WD3000HLFS) 10,000 RPM, SATA/300, 16MB Cache
Power Supply PC Power & Cooling, Silencer 750EPS12V 750W
System Software & Drivers
Operating System Windows 7 Ultimate x64 Updated on 2010-03-03
Drivers and Settings
AMD Chipset Drivers Catalyst 10.3 Motherboard/Chipset Drivers