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Video Processor, Continued

1:00 PM - April 14, 2004 by Lars Weinand
Source: Tom's Hardware US – Keywords: performance, leap
Topics: NVIDIA

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Table of Contents:
18 – Video Processor, Continued
  1. 1 – Introduction
  2. 2 – NV40 Alias GeForce 6800 Ultra
  3. 3 – The GeForce Compared To The Rest Of Its Class
  4. 4 – The Hardware
  5. 5 – The Hardware, Continued
  6. 6 – The Hardware, Continued
  7. 7 – The Hardware, Continued
  8. 8 – Cine FX 3.0
  9. 9 – Pixel Processing Engine
  10. 10 – Pixel Processing Engine
  11. 11 – Vertex Engine
  12. 12 – Shader Model 3.0
  13. 13 – ROP Pixel Pipelines (Raster Operations)
  14. 14 – Possible Applications And Other Peculiarities
  15. 15 – Displacement Mapping
  16. 16 – More Goodies
  17. 17 – Video Processor
  18. 18 – Video Processor, Continued
  19. 19 – ForceWare 60 Driver
  20. 20 – Power Consumption
  21. 21 – Power Consumption, Continued
  22. 22 – Video Acceleration Tests
  23. 23 – Test Setup
  24. 24 – Benchmarks
  25. 25 – Unreal Tournament 2004, Continued
  26. 26 – Unreal Tournament 2004, Continued
  27. 27 – Unreal Tournament 2004, Continued
  28. 28 – Call Of Duty
  29. 29 – Call Of Duty, Continued
  30. 30 – Call Of Duty, Continued
  31. 31 – Call Of Duty, Continued
  32. 32 – AquaMark 3
  33. 33 – AquaMark 3, Continued
  34. 34 – X2 - The Threat
  35. 35 – X2 - The Threat, Continued
  36. 36 – Breed Demo
  37. 37 – Breed Demo, Continued
  38. 38 – Colin McRae Rally 4 Demo
  39. 39 – Colin McRae Rally 4 Demo, Continued
  40. 40 – Nascar Thunder 2004
  41. 41 – Halo - Combat Evolved
  42. 42 – FarCry
  43. 43 – FarCry, Continued
  44. 44 – Image Quality - FSAA
  45. 45 – Image Quality - Anisotropic
  46. 46 – Image Quality - Anisotropic, Continued
  47. 47 – Shader Quality - FarCry
  48. 48 – Image Quality - Summary
  49. 49 – Conclusion

Video Processor, Continued

According to NVIDIA, the NV4x architecture greatly reduces CPU usage during video playback. Also, the chip promises to improve video encoding performance in optimized programs, leading to a much lower power consumption - a factor that will be of utmost importance for the mobile derivatives of the NV4x line. While the performance of the video processor depends on the clockspeed of the whole GPU, all other functions of the chip can be deactivated to save power when the video processor is active. The TV-out functionality is also housed in the new video processor.


This diagram shows the functions of the video processor during MPEG playback...


...and during MPEG encoding.

We tested the CPU usage during MPEG and WMV playback and will cover the results in a separate section of this article.


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