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Test Setup And Synthetic Benchmarks

Core i7-980X: Do You Want Six Cores Or 12 Threads?
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System Hardware
HardwareDetails
Performance Benchmarks
Motherboard
(Socket LGA 1156)
Gigabyte EX58-UD4P (Rev. 1.0)
Chipset: Intel X58, BIOS: F12 (02/11/2009)
CPU IntelIntel Core i7-975 Extreme (45nm, 3.33 GHz, 4 x 256KB L2 and 8MB L3 Cache, TDP 130W, Rev. D0)
CPU Intel IIIntel Core i7-980X Extreme (32nm, 3.33 GHz, 6 x 256KB L2 and 12MB L3 Cache, TDP 130W)
RAM DDR3 (dual)3 x 2GB DDR3-1600 (Corsair TR3X6G-1600C8D 8-8-8-24)
GraphicsSapphire Radeon HD 5850
GPU: Cypress (725 MHz), Graphics RAM: 1024MB GDDR5 (2000 MHz), Stream Processors: 1,440
Hard DriveWestern Digital VelociRaptor, 300GB (WD3000HLFS)
10,000 RPM, SATA/300, 16MB Cache
Power SupplyPC Power & Cooling, Silencer 750EPS12V 750W
Operating SystemWindows 7 Ultimate x64
Updated on 2010-03-03
Drivers and Settings
Intel Chipset DriversChipset Installation Utility Ver. 9.1.1.1025
Intel Storage DriversMatrix Storage Drivers Ver. 8.​9.​0.​1023


Synthetic Benchmarks

Hyper-Threading has no impact on arithmetic performance.

The AES 256-bit encryption test on Sandra 2010 Pro finishes with extremely impressive results. Thanks to Intel’s AES new instructions, these types of operation are much accelerated.

SHA256 isn’t accelerated, except by the fact that there are six instead of four cores on the Core i7-980X. Hyper-Threading again has little impact.

Total memory bandwidth seems to be higher on the quad-core. Hyper-Threading makes no real difference here.

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