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How Is Breaking The 4 GHz Barrier Possible? Continued

6:07 AM - May 10, 2006 by Bert Töpelt
Source: Tom's Hardware US – Keywords: dual, 41, ghz, cores
Topics: Buyer's Guides

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Table of Contents:
8 – How Is Breaking The 4 GHz Barr...
  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

How Is Breaking The 4 GHz Barrier Possible? Continued

To prevent resellers from scamming buyers by substituting counterfeit or modified parts, Intel packages the CPU so that its designator is visible through a clear plastic window. This enables buyers to verify that the specification number printed on the box agrees with the number on the part itself, without requiring them to open the package. This means you can check the authenticity of the CPU without even having to buy the processor first.

A clear plastic window lets buyers ascertain that the specification number on the box agrees with the number printed on the CPU.

Of course, those who buy their CPUs online can't perform such checks in advance of purchase, but that's where refund policies come into play: most buyers can return a CPU purchase within some days for a full refund without having to provide a reason. Here's an overview of all Pentium processors for Socket 775, with their code names and version numbers.

CPU Overview
CPU Name Designation Core Version Process
Pentium EE 965 Presler C1 65 nm
Pentium EE 955 Presler B1 65 nm
Pentium D 900 Series Presler B1 65 nm
Pentium 4 6x1 Series Cedar Mill B1 65 nm
Pentium EE 840 Smithfield A0 90 nm
Pentium D 800 Series Smithfield B0 90 nm
Pentium D 800 Series Smithfield A0 90 nm
Pentium EE 3.72 GHz Prescott 2M N0 90 nm
Pentium 4 6x0 Series Prescott 2M N0 90 nm
Pentium 4 5x1 Series Prescott D0, E0 90 nm
Pentium 4 5x0J Series Prescott D0, E0 90 nm
Pentium 4 5x0 Series Prescott D0, E0 90 nm
Pentium EE 3.46 GHz Gallatin M0 130 nm
Pentium EE 3.40 GHz Gallatin M0 130 nm

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