Clarkdale Efficiency: The Perfect Clock Rate For Intel's Core i5-661

Voltage Table And Test Setup

We tested using Intel’s reference LGA 1156 cooler, which comes bundled with all Core i5 dual-core boxed processors and can handle a Core i5 at up to about 4 GHz. It has a copper core and is quiet enough for an average desktop PC. But since it's half as high as the quad-core coolers designed to tackle 95W or 130W TDPs, you shouldn't expect too much from it. We decided to use it since not everyone would want to spend another $30 to $80 for a premium cooler. We recommend getting a tray CPU and purchasing a CPU cooler separately if you want less noise and/or better cooling.

System Hardware
Performance Benchmarks
Motherboard (Socket LGA1156)MSI H55M-ED55 (Rev. 1.0)
Chipset: Intel H55, BIOS: 1.1 Beta 1 (09/08/2009)
CPU IntelIntel Core i5-661 (32nm, 3.33 GHz, 2 x 256KB L2 and 4MB L3 Cache, TDP 87W, Rev. B1)
RAM DDR3 (dual)2 x 2GB DDR3-1600 (Corsair CM3X2G1600C9DHX)
GraphicsIntel HD Graphics
Hard DriveWestern Digital VelociRaptor, 300GB (WD3000HLFS), 10,000 RPM, SATA/300, 16MB Cache
Power SupplyPC Power & Cooling, Silencer 750EPS12V 750W
System Software & Drivers
Operating SystemWindows Vista Enterprise Version 6.0 x64
Service Pack 2 (Build 6000)
Drivers and Settings
Intel Chipset DriversChipset Installation Utility Ver.
Intel Storage DriversMatrix Storage Drivers Ver.

Benchmarks and Settings

Audio Benchmarks and Settings
Audio CD ("Terminator II" SE), 53 min., Convert to AAC audio format
Lame MP3Version 3.98
Audio CD "Terminator II SE", 53 min., convert WAV to MP3 audio format, Command: -b 160 --nores (160 Kbps)
Video Benchmarks and Settings
TMPEG 4.6Version:
Video: Terminator 2 SE DVD (720x576, 16:9) 5 Minutes
Audio: Dolby Digital, 48000 Hz, 6-channel, English
Advanced Acoustic Engine MP3 Encoder (160 Kbps, 44.1 KHz)
DivX 6.8.5Version: 6.8.5
== Main Menu ==
== Codec Menu ==
Encoding mode: Insane Quality
Enhanced multithreading
Enabled using SSE4
Quarter-pixel search
== Video Menu ==
Quantization: MPEG-2
XviD 1.2.1Version: 1.2.1
Other Options / Encoder Menu -
Display encoding status = off
Mainconcept Reference 1.6.1Version: 1.6.1
MPEG-2 to MPEG-2 (H.264)
MainConcept H.264/AVC Codec
28 sec. HDTV 1920x1080 (MPEG-2)
MPEG-2 (44.1 kHz, 2-channel, 16-bit, 224 Kbps)
Codec: H.264
Mode: PAL (25 FPS)
Profile: Settings for eight threads
Application Benchmarks and Settings
Grisoft AVG Anti-Virus 8Version: 8.5.287
Virus base: 270.12.16/2094
Scan: some compressed ZIP and RAR archives
WinRAR 3.9Version 3.90 x64 BETA 1
Compression = Best
Benchmark: THG-Workload
WinZip 12Version 12.0 (8252)
WinZIP Commandline Version 3
Compression = Best
Dictionary = 4096KB
Benchmark: THG-Workload
Autodesk 3d Studio Max 2009Version: 9 x64
Rendering Dragon Image
Resolution: 1920 x 1280 (frame 1-5)
Adobe Photoshop CS 4 (64-Bit)Version: 11
Filtering a 16MB TIF (15000x7266)
Radial Blur (Amount: 10; Method: zoom; Quality: good)
Shape Blur (Radius: 46 px; custom shape: Trademark sysmbol)
Median (Radius: 1px)
Polar Coordinates (Rectangular to Polar)
Adobe Acrobat 9 ProfessionalVersion: 9.0.0 (Extended)
== Printing Preferenced Menu ==
Default Settings: Standard
== Adobe PDF Security - Edit Menu ==
Encrypt all documents (128-bit RC4)
Open Password: 123
Permissions Password: 321
Microsoft Powerpoint 2007Version: 2007 SP2
Powerpoint Document (115 Pages)
Adobe PDF-Printer
Deep Fritz 11Version: 11
Fritz Chess Benchmark Version 4.2