Overclocking To 4.10 GHz Boosts Basic Clock Speed By 54 Percent

12:26 - Wednesday 10 May 2006 by Bert Töpelt
Source: Tom's Hardware – Keywords: dual, 41, ghz, cores, uk

Table of content:
26 – Overclocking To 4.10 GHz Boost...
  1. 1 – A Budget CPU At Top Speeds
  2. 2 – A Budget CPU At Top Speeds, Continued
  3. 3 – Inside the Pentium D 805
  4. 4 – The Secret Of The Multiplier
  5. 5 – 133 MHz FSB: Perfect For Overclocking
  6. 6 – How Is Breaking The 4 GHz Barrier Possible?
  7. 7 – How Is Breaking The 4 GHz Barrier Possible? Continued
  8. 8 – How Is Breaking The 4 GHz Barrier Possible? Continued
  9. 9 – Three Theories Where The Customer Comes Out Ahead
  10. 10 – Which Memory Clock Speed Is Most Suitable?
  11. 11 – The Right Chipset
  12. 12 – Keeping Cool When Power Consumed Tops 150 Watts at 4.1 GHz
  13. 13 – Keeping Cool When Power Consumed Tops 150 Watts at 4.1 GHz, Continued
  14. 14 – Power Consumption Levels Top 200 W
  15. 15 – Power Consumption Levels Top 200 W, Continued
  16. 16 – Energy Saving Functions Lack C1E
  17. 17 – Risk-free Overclocking, Including Heat Protection
  18. 18 – Ready For The 64 Bit Future
  19. 19 – Tom's Hardware Guides Overclocking Diary
  20. 20 – 3.33 GHz Remains Stable At Standard Voltage Levels
  21. 21 – 3.33 GHz Remains Stable At Standard Voltage Levels, Continued
  22. 22 – Trouble Free Operation At 3.60 GHz
  23. 23 – At 3.8 GHz Some Minor Voltage Increases Become Necessary
  24. 24 – Water Cooling Is Recommended For 4.0 GHz
  25. 25 – Water Cooling Is Recommended For 4.0 GHz, Continued
  26. 26 – Overclocking To 4.10 GHz Boosts Basic Clock Speed By 54 Percent
  27. 27 – Overclocking To 4.10 GHz Boosts Basic Clock Speed By 54 Percent, Continued
  28. 28 – Will The System Boot At 4.3 GHz?
  29. 29 – Benchmark Results Show Performance Increases Of Up To 54 Percent
  30. 30 – 3D, Continued
  31. 31 – 3D, Continued
  32. 32 – Video Editing / Video Encoding
  33. 33 – Video, Continued
  34. 34 – Video, Continued
  35. 35 – Audio Encoding
  36. 36 – Office Applications
  37. 37 – Office Applications, Continued
  38. 38 – Parallel Applications - Multitasking
  39. 39 – Synthetic Benchmarks
  40. 40 – Synthetic Benchmarks, Continued
  41. 41 – Synthetic Benchmarks, Continued
  42. 42 – Synthetic Benchmarks, Continued
  43. 43 – Summary Overview: Who's The Winner?
  44. 44 – Conclusion: The 4.1 GHz Dual Core Delivers Peak Performance For Pocket C...
  45. 45 – Conclusion, Continued

Overclocking To 4.10 GHz Boosts Basic Clock Speed By 54 Percent

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For some applications, we could beat the Pentium Extreme Edition 965 with a Pentium D 805, but that wasn't good enough for our project. Thus, we took things one step further and started the system with an FSB clock rate of 205 MHz. This produces a CPU clock rate of 4.1 GHz.

It's necessary to resort to extreme measure to make this configuration work reliably, however. We increased the core voltage by about 0.338 V to 1.675 V. The memory clock rate then sat at DDR2-820, at which we could still maintain our timings at CL4.0-4-4-8.

With good memory modules - like the PQI PQI25400-1GDBL modules we used in our testing - timing values of CL4.0-4-4-8 remain viable even at DDR2-820.

The Asus motherboard let us enter a voltage setting of 1.67 V without balking...

...but as soon as we restarted the system it flashed a "CPU Overvoltage Error" message at us, just to stay on the safe side.

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