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The CPU Articles
Reviews
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Overclocking - Up To 19% More Performance

12:03 AM - October 29, 2007 by Bert Töpelt
Source: Tom's Hardware US – Keywords: intel, penryn, 4ghz, air, cooling
Topics: AMD/ATI, Build Your Own, INTEL

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Table of Contents:
11 – Overclocking - Up To 19% More ...
  1. 1 – Revamping The Core 2 Architecture - New Flagship: Extreme QX9650
  2. 2 – New Dielectric Minimizes Leakage Currents
  3. 3 – 45 nm - Higher Yield, Smaller Die Area
  4. 4 – 12 MB L2 Cache And SSE 4
  5. 5 – The Processor - Intel Core 2 QX9650
  6. 6 – Overclocking I - 3.33 GHz
  7. 7 – Overclocking II - 3.66 GHz
  8. 8 – Overclocking III - 3.8 GHz
  9. 9 – Overclocking IV - 4 GHz At Very High Voltage
  10. 10 – Overclocking V - 4 GHz At FSB 1600
  11. 11 – Overclocking - Up To 19% More Performance
  12. 12 – Overclocking To 4.0 GHz - FSB1600 Offers No Advantage
  13. 13 – Sensational: Idle Power Consumption Of Only 3.79 Watts
  14. 14 – Very Good - 73 Watts For Four Cores
  15. 15 – Lower Core Voltage - 1.250 Volts
  16. 16 – Operating Temperature - 12°C Lower
  17. 17 – Penryn-Based Core 2 CPUs - Models, Prices, New Boxed Cooler
  18. 18 – New Boxed Cooler
  19. 19 – Performance Comparison - Old Vs. New - 6.9% Better Performance
  20. 20 – Test Setup
  21. 21 – Software Configuration
  22. 22 – Benchmarks And Settings
  23. 23 – 3D Games: UT2004, Prey
  24. 24 – 3D Games: Quake 4, Warhammer
  25. 25 – 3D Games: Supreme Commander, Serious Sam 2
  26. 26 – 3D Rendering: Cinema 4D, 3D-Studio Max
  27. 27 – Applications: AVG, WinRAR
  28. 28 – Applications: Photoshop, PDF
  29. 29 – Applications: Deep Fritz
  30. 30 – Audio Encoding: ITunes, Lame
  31. 31 – Synthetic: Sandra CPU
  32. 32 – Synthetic: Sandra Memory
  33. 33 – Synthetic: Sandra Multimedia
  34. 34 – Synthetic: PC-Mark
  35. 35 – Synthetic: 3D-Mark
  36. 36 – Video Encoding: Xvid, Pinnacle Studio
  37. 37 – Video Encoding: Premiere, MainConcept
  38. 38 – Video Encoding: HDTV, DivX
  39. 39 – Video Encoding: CloneDVD
  40. 40 – Conclusion: Less Noise, More Efficiency, More Speed and More Overclockin...

Overclocking - Up To 19% More Performance

We compiled a performance analysis of the individual programs that make up our benchmark suite, with the processor overclocked to 3.33 GHz and 3.66 GHz.

We didn't include synthetic benchmark applications such as SiSoft Sandra, PCMark and 3DMark, since they are not real-world applications and would therefore not contribute to these results in a meaningful way.

The Core 2 Extreme QX9650, running at 3.3 GHz at stock voltage, shows a 6.6% performance boost across our benchmark suite.

When we raise the processor's clock speed to 3.66 GHz, which only requires a minor increase in core voltage, its scores improve by 13.3%.

All of our tests were run on the Gigabyte GA-X38-DQ6 motherboard.

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