Test Setup

 

CPU : Intel I5 2500K Retail

CPU Cooler: Noctua U12P SE2

Motherboard : ASRock P67 Extreme6

RAM : G.Skill Ripjaws F3-12800CL8D-4GBRM

Video : Sparkle X460 Calibre 1GB

Power Supply : Cooler Master 850W

HDD : Seagate Barracuda 320GB 7200.10

Case: Cooler Master ATCS 840

 

During the tests, the CPU speed was set at 3.3GHz and Turbo was disabled in UEFI. Testing with the same stock timings was possible until 1866MHz was reached. To make the system stable at this frequency, it was needed to relax the timings a little and the voltage was set first at 1.65V; the next step was to tighten the timings in small steps and for any modification I have ran HCI Memtest (Windows utility) with 4 instances for about a half an hour, to determine if the system was stable or not. When the most stable timings were found, I have started to decrease the voltage until the memory was giving errors again and raised it with one step in UEFI, to obtain the best timings at this frequency, at the smallest voltage possible, this time 1.515V.

I have tried multiple times to overclock the modules at 2133MHz, by setting the voltage to 1.65V or even at 1.7V, relaxing the timings completely and upping the VTT voltage with no success (the system was booting to Windows, but HCI Memtest reported errors after a few minutes).

The CPU-Z tab where the memory timings and frequency are confirmed (at maximum stable overclocked speed):

 

 

CPU-Z online validation at 1866MHz 9-10-9-24:

Test Results

 

 Synthetic Benchmarks

3DMark 2001

 

 

3DMark 2006

 

PCMark Vantage

 

 

SuperPI XS 1.5 2MB

 

wPrime 32M

 

 

Memory Bandwidth, Latency

 

AIDA64

 

 

 

CrystalMark Bandwidth

 

 

 

Cinebench R10 Rendering

 

Cinebench R11.5 Rendering

 

x264 Encoding

 

 

 Games

Crysis

 

Devil May Cry 4

 

Far Cry 2

 

 

Street Fighter 4

 

 

Bandwidth and Latency comparison vs previously tested kits at rated speed

Bandwidth and Latency comparison vs previously tested kits at maximum stable overclock