What Enabling C6/C7 Low-Power States Do on the Core i7-4770K Haswell CPU

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Test System

Before we look at the numbers, let’s take a brief look at the test system that was used. All testing was done on a fresh install of Windows 8 Enterprise 64-bit and benchmarks were completed on the desktop with no other software programs running. We completely overhauled our test setup for the Intel Core i7-4770K processor launch and this system is cutting edge with a digital power supply, 1.50V memory and an SSD with 19nm MLC NAND Flash.

lga1150-system

The Intel Z87 platform that we used to test the Intel 1150 processors was running the Intel DZ87KL-75K motherboard with BIOS KL.0341 that came out on 5/30/2013. The Corsair Dominator Platnium 8GB 2133MHz memory kit was set to XMP 1.3 memory profile settings, which is 1.5v and 9-11-10-27 1T memory timings. The Corsair Neutron GTX 240GB SSD uses 19nm NAND and was using M310 firmware. The Intel HD Graphics 4600 iGPU was running 9.18.10.3165 graphics drivers.

systemsetup2_550

 Here is a quick look at the CPU-Z information for our main test system that we’ll be doing the testing on.

Intel LGA1150 Test Platform

Component

Brand/Model

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Processor

Intel Core i7-4770K

Motherboard

Intel DZ87KL-75K Click Here

Memory

8GB Donimator 2133MHz Click Here

Video Card

N/A

Click Here

Hard Drive

Corsair Neutron GTX 240GB SSD

Click Here

Cooling

Intel Retail Boxed

Click Here

Keyboard

Corsair K90

Click Here

Mouse

Corsair M95

Click Here

Power Supply

Corsair AX860i

Click Here

Operating System

Windows 8 64-Bit

Click Here

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