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Overclocking II – Quad-Core Q6600 at 3.20 GHz

Sibling Rivalry - Intel E6750 and Q6600 Overclocking Duel
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We continue to push for higher clock speeds. Next, the processor hit the 3.20 GHz mark, albeit at a much higher core voltage than its dual-core counterpart. To reach this frequency, we had to increase the voltage by a full 0.100 V to enable it to complete the Prime95 test without issue on a front-side bus of 356 MHz (1424 QDR).

E6750 Q6600 Overclocking

Along with the clock speed, the memory frequency increases to DDR2-854 (427 MHz), while still running at a latency of CL 4.0-4-4-12. That such a dramatically increased core voltage is needed to achieve this speed is due to the Q6600’s design, which uses two dual-core chips. Here, the probability that one of the two cores has lower overclocking potential is twice as high, even though both of the dual-core parts inside use the G0 stepping. Also, two dual-cores dissipate twice as much heat, which in return results in a higher CPU temperature, leading to a higher risk of instability.

E6750 Q6600 Overclocking

E6750 Q6600 Overclocking

Core 2 Quad Q6600 @3.20 GHz
CPU Frequency3.20 GHz (+33.3 %)
FSB356 MHz (1424 QDR)
Core Voltage1,4125 Volt
Memory Multiplier2.40x
Memory FrequencyDDR2-854 (427 MHz)
Memory LatencyCL 4.0-4-4-12

Summary
  1. E6750 or Q6600 – Which is the better choice?
  2. The Processors – E6750 or Q6600?
  3. Processor – G0 Stepping is a must
  4. Motherboard – Gigabyte or MSI with P35 chipset
  5. Highlights of the MSI Board – Affordable, Heatpipe on Board
  6. Highlights of the Gigabyte Board – More Features
  7. GEIL Memory – An Overclocking Natural
  8. Cooler - Zalman's CNPS9700LED is Ideal
  9. Looking at the Bottom Line – CPU, Cooler, Board, and RAM
  10. Overclocking I – Dual-Core E6750 at 3.00 GHz
  11. Overclocking II – Dual-Core E6750 at 3.30 GHz
  12. Overclocking III – Dual-Core E6750 at 3.40 GHz
  13. Overclocking IV – Dual-Core E6750 at 3.50 GHz
  14. Overclocking V – Dual-Core E6750 at 3.60 GHz
  15. Overclocking I – Quad-Core Q6600 at 3.00 GHz
  16. Overclocking II – Quad-Core Q6600 at 3.20 GHz
  17. Overclocking III – Quad-Core Q6600 at 3.30 GHz
  18. Overview of Core Voltages
  19. Power Consumption and Energy Cost – Less is more with Dual-Core
  20. Overclocking Yields 25 Percent Performance Increase
  21. Performance Winner – Q6600 Provides 5.3% More Performance
  22. Test Setup
  23. Software Configuration
  24. Benchmarks and Settings
  25. 3D-Games - UT2004, Prey
  26. 3D-Games - Quake 4, Warhammer
  27. 3D-Games - Supreme Commander, Serious Sam 2
  28. 3D-Rendering - Cinema 4D, 3D-Studio Max
  29. Applications - AVG, WinRAR
  30. Applications - Photoshop, PDF
  31. Applications - Deep Fritz
  32. Audio Encoding - iTunes, Lame
  33. Synthetic - Sandra CPU
  34. Synthetic - Sandra Memory
  35. Synthetic - Sandra Multimedia
  36. Synthetic - PC-Mark
  37. Synthetic - 3D-Mark
  38. Video Encoding - Xvid, Pinnacle Studio
  39. Video Encoding - Premiere, Mainconcept
  40. Video Encoding - HDTV, DivX
  41. Video Encoding - CloneDVD
  42. Conclusion - Intel Quad-Core and MSI P35 Neo2 get our Nod
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