Overclocking Results: 417 MHz FSB
Using the stock cooler, we were able to reach 3.1 GHz at 387 MHz FSB and 1.45 V using the Intel stock cooler, where increasing the voltage only made the CPU overheat sooner. Adding the CNPS9700 LED brought down those temperatures phenomenally, but only got us to 3.15 GHz at 394 MHz FSB and 1.48 V before things once again got too hot. The big gun Gigabyte 3D Galaxy II liquid cooler brought far greater success:3.33 GHz at 417 MHz FSB and 1.52 V !
We didn’t have a Core 2 Duo E6600 handy for comparison, but our E6700 sample reached 3.46 GHz, using the Intel Boxed Cooler, to keep value comparisons fair and simple.
Test System
We tested the Core 2 Duo E6400 at standard speed plus the highest stable speed for each cooler type ; 3.10 GHz for the stock cooler, 3.15 GHz for the CNPS9700 and 3.33 GHz for the 3D Galaxy II. The E6700 was first compared at its specified 2.66 GHz clock speed, then at 3.33 GHz to match the E6400’s maximum speed, and finally at its maximum stock-cooled stable speed of 3.46 GHz.
| System Hardware | |
|---|---|
| Processors | Intel Core 2 Duo E6400, 2.13 GHz, FSB1066, 2 MB L2 CacheIntel Core 2 Duo E6700, 2.66 GHz, FSB1066, 4 MB L2 Cache |
| Motherboard | Abit AB9-Pro V1.00, BIOS 1.4 |
| RAM | Corsair CMX512-8000UL2x 512 MB, Dual-Channel Mode, CL4-4-4-8 |
| Hard Drive | Western Digital Raptor WD1500ADFD150 GB, 10,000 RPM, 16 MB Cache, SATA/150 |
| Networking | Marvell Yukon Gigabit PHY, enabled, offline |
| Graphics | Sapphire X1900GT 256 MB PCI Express, D-DVI/VIVOGPU : ATI Radeon X1900GT (575 MHz)RAM : 256 MB GDDR3 (1,200 MHz) |
| Power Supply | OCZ ModStream OCZ52012U - 520 W, modular |
| System Software & Drivers | |
| OS | Windows XP Professional 5.1.2600, Service Pack 2 |
| DirectX Version | 9.0c (4.09.0000.0904) |
| Platform Driver | Intel INF 8.1.0.1006 |
| Graphics Driver | ATI Catalyst 6.8 |
Benchmarks And Settings
| Benchmarks and Settings | |
|---|---|
| 3D-Games | |
| FEAR | Version : 1.0 RetailVideo Mode : 1024x768Computer : MaximumGraphics Card : Modified Max - No Soft Shadows, 4xAA/8xAFTest Path : Options/Performance/Test settings |
| Quake 4 | Version : 1.2 (Dual-Core Patch)Video Mode : 1024x768Video Quality : defaulttimedemo demo8.demo 1 (1 = load textures) |
| Audio | |
| Lame MP3 | Version 3.97 Beta 2 (12-22-2005)Audio CD "Terminator II SE", 53 minwave to mp3160 kbps |
| OGG | Version 1.1.2Audio CD "Terminator II SE", 53 minwave to oggQuality : 5 |
| Video | |
| TMPEG 3.0 Express | Version : 3.0.4.24 (no Audio)fist 5 Minutes DVD Terminator 2 SE (704x576) 16:9 |
| DiVX 6.1 | Version : 6.1 (2 Logical CPUs)Profile : High Definition Profile1-pass, 3000 kb/sEncoding mode : Insane Qualityno Audio |
| XViD 1.1.0 | Version : 1.1.0 Beta 2Profile : UnrestrictedEncoding type : Single PassTarget qantizer : 1.00 |
| Applications | |
| Autodesk 3D Studio Max | Version : 8.0Characters "Dragon_Charater_rig"rendering HTDV 1920x1080 |
| Synthetics | |
| PCMark05 Pro | Version : 1.1.0System TestWindows Media Player 10.00.00.3646Windows Media Encoder 9.00.00.2980 |
| SiSoftware Sandra 2005 | Version 2005.7.10.60 |
