Experiment: Does Intel’s Turbo Boost Trump Overclocking?

Test Setup And Benchmarks

Test Hardware
Intel Core i7-860 (Lynnfield) 2.8 GHz, LGA 1156, 8MB L3, Hyper-Threading, Power-savings enabled

Intel Core i5-750 (Lynnfield) 2.66 GHz, LGA 1156, 8MB L3, Power-savings enabled
Intel DP55KG (LGA 1156) Intel P55 Express, BIOS 3878
Corsair 4GB (2 x 2 GB) DDR3-2200 8-8-8-24 @ DDR3-1333
Hard Drive
Intel SSDSA2M160G2GC 160GB SATA 3 Gb/s

Intel SSDSA2MH080G1GN 80GB SATA 3 Gb/s
ATI Radeon HD 5850 1GB
Power Supply
Cooler Master UCP 1100W
Thermalright MUX-120
System Software And Drivers
Operating System
Windows 7 Ultimate Edition x64
DirectX 11
Platform Driver
Intel INF Chipset Update Utility
Graphics DriverCatalyst 9.12

Benchmarks and Settings

Audio Encoding


Version: (64-bit), Audio CD ("Terminator II" SE), 53 min., Default format AAC

Video Encoding


Version:, Import File: "Terminator II" SE DVD (5 Minutes), Resolution: 720x576 (PAL) 16:9

DivX 6.8.5

Encoding mode: Insane Quality, Enhanced Multi-Threading, Enabled using SSE4, Quarter-pixel search

XviD 1.2.2

Display encoding status=off

MainConcept Reference 1.6.1

MPEG2 to MPEG2 (H.264), MainConcept H.264/AVC Codec, 28 sec HDTV 1920x1080 (MPEG2), Audio: MPEG2 (44.1 KHz, 2 Channel, 16-Bit, 224 Kb/s), Mode: PAL (25 FPS), Profile: Tom’s Hardware Settings for Qct-Core

HandBrake 0.9.4
Version 0.9.4, convert first .vob file from The Last Samurai to .mp4, High Profile


Autodesk 3ds Max 2010 (64-bit)

Version: 2009 Service Pack 1, Rendering Dragon Image at 1920x1080 (HDTV)

WinRAR 3.90

Version 3.90 (64-bit), Benchmark: THG-Workload (334 MB)


Version 4.65, Built-in Benchmark

Adobe Photoshop CS4
Radial Blur, Shape Blur, Median, Polar Coordinates filters
AVG Anti-Virus 9
Virus scan of 334MB of compressed files

Synthetic Benchmarks and Settings

3DMark Vantage

Version: 1.02, GPU and CPU scores

PCMark Vantage

Version: 1.00, System, Memories, TV and Movies, and Productivity benchmarks, Windows Media Player

SiSoftware Sandra 2010

CPU Test=CPU Arithmetic/MultiMedia, Memory Test=Bandwidth Benchmark

Very High Quality Settings, No AA / No AF, 4xAA / No AF, vsync off, 1280x1024 / 1680x1050 / 1900x1200, DirectX 10, Patch 1.2.1, 64-bit executable
Left 4 Dead 2
High Quality Settings, No AA / No AF, 8xAA / 16xAF, vsync off, 1680x1050 / 1920x1200 / 2560x1600, Tomshardware Demo, Steam Version
Call of Duty: Modern Warfare 2
Ultra High Settings, No AA / No AF, 4xAA / No AF, 1680x1050 / 1920x1200 / 2560x1600, The Gulag, 60 second sequence, Fraps
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  • jimishtar
    i5 is great, but I wrote this on the first i5 review, and i'm gonna write it again: there goes turbo boost...
  • mi1ez
    And as I've been saying for months, let's see how far we can push BCLK with turbo ENABLED and keep it stable!
  • jimishtar
    hhh :)
  • Anonymous
    mi1ez - I want to see this kind of test too.
  • Anonymous
    Ok games have been tested, but what about games like supreme commander?
    I know that game is very cpu hungry.