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Unofficial Skyrim Performance Boost

The Bethesda Softworks Forums have a thread on a new utility for The Elder Scrolls V: Skyrim claiming to offer framerate improvements of up to 40% on CPU-constrained systems (thanks Acleacius). Here's the skinny:

This patch will improve your frame rate by up to 40% in all CPU-dependent situations, i.e. especially in cities. It works mostly by rewriting some x87 FPU code and inlining a whole ton of useless getter functions along the critical paths because the developers at Bethesda, for some reason, compiled the game without using any of the optimization flags for release builds.

There has been some confusion about the original dll file and the current one for Script dragon. Script Dragon's dinput8.dll is 592kb The non working TESV Accelerator dinput.dll is 74kb

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23. Re: Unofficial Skyrim Performance Boost Dec 24, 2011, 15:23 Aero
 
It's kind of odd that there would be any x87 FPU code in there to begin with. There's not a lot of reasons to use that anymore. Also software that only works properly with optimizations disabled is usually a sign of bad code (though isn't uncommon to see)--fixes bugs that the developer doesn't really understand, but it works, so they leave it be.

Interesting insight to the engine. That said, without any mods or anything, it ran pretty well for me and except for one crash early on has been completely stable for almost 70 hours of play, and only once did I have to load a savegame because an event didn't trigger properly.
 
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    Date Subject Author
  1. Dec 24, 11:47 Re: Unofficial Skyrim Performance Boost Acleacius
  2. Dec 24, 12:03  Re: Unofficial Skyrim Performance Boost Zyrxil
  4. Dec 24, 12:19   Re: Unofficial Skyrim Performance Boost Jerusahat
  5. Dec 24, 12:22   Re: Unofficial Skyrim Performance Boost Acleacius
  9. Dec 24, 12:32    Re: Unofficial Skyrim Performance Boost Kastagir
  7. Dec 24, 12:27   Re: Unofficial Skyrim Performance Boost axeme
  19. Dec 24, 14:57   Re: Unofficial Skyrim Performance Boost Creston
  41. Dec 25, 07:05    Re: Unofficial Skyrim Performance Boost eRe4s3r
  42. Dec 25, 08:11     Re: Unofficial Skyrim Performance Boost Quboid
  43. Dec 25, 08:21      Re: Unofficial Skyrim Performance Boost Slashman
  44. Dec 25, 09:41      Re: Unofficial Skyrim Performance Boost eRe4s3r
  3. Dec 24, 12:04 Re: Unofficial Skyrim Performance Boost wtf_man
  6. Dec 24, 12:26 Re: Unofficial Skyrim Performance Boost Bhruic
  8. Dec 24, 12:31 Re: Unofficial Skyrim Performance Boost Silicon Avatar
  10. Dec 24, 12:39 Re: Unofficial Skyrim Performance Boost DrEvil
  11. Dec 24, 13:33  Re: Unofficial Skyrim Performance Boost Quboid
  21. Dec 24, 15:01   Re: Unofficial Skyrim Performance Boost Creston
  26. Dec 24, 16:18    Re: Unofficial Skyrim Performance Boost Quboid
  27. Dec 24, 16:49     Re: Unofficial Skyrim Performance Boost Creston
  32. Dec 24, 20:34     Re: Unofficial Skyrim Performance Boost Bhruic
  12. Dec 24, 13:36  Re: Unofficial Skyrim Performance Boost Slashman
  13. Dec 24, 13:53   Re: Unofficial Skyrim Performance Boost ^Drag0n^
  33. Dec 24, 23:43    Re: Unofficial Skyrim Performance Boost Ant
  14. Dec 24, 14:07  Re: Unofficial Skyrim Performance Boost ^Drag0n^
  15. Dec 24, 14:29  Re: Unofficial Skyrim Performance Boost hello newman
  17. Dec 24, 14:51  Re: Unofficial Skyrim Performance Boost Fletch
  18. Dec 24, 14:54   Re: Unofficial Skyrim Performance Boost DrEvil
  22. Dec 24, 15:01    Re: Unofficial Skyrim Performance Boost Fletch
  20. Dec 24, 14:59  Re: Unofficial Skyrim Performance Boost Creston
  29. Dec 24, 19:46  Re: Unofficial Skyrim Performance Boost Jerykk
  45. Dec 25, 12:00  Re: Unofficial Skyrim Performance Boost ForgedReality
  16. Dec 24, 14:35 Re: Unofficial Skyrim Performance Boost Gen7
  24. Dec 24, 15:59  Re: Unofficial Skyrim Performance Boost ^Drag0n^
  31. Dec 24, 19:57   Re: Unofficial Skyrim Performance Boost Gen7
>> 23. Dec 24, 15:23 Re: Unofficial Skyrim Performance Boost Aero
  25. Dec 24, 16:12  Re: Unofficial Skyrim Performance Boost space captain
  28. Dec 24, 18:57 Re: Unofficial Skyrim Performance Boost Kastagir
  30. Dec 24, 19:49 Re: Unofficial Skyrim Performance Boost Suddenly_Dead
  34. Dec 25, 01:01 Re: Unofficial Skyrim Performance Boost KilrathiAce
  35. Dec 25, 01:33  Re: Unofficial Skyrim Performance Boost ^Drag0n^
  39. Dec 25, 05:18   Re: Unofficial Skyrim Performance Boost Jerykk
  40. Dec 25, 05:57    Re: Unofficial Skyrim Performance Boost Luke
  46. Dec 25, 12:04     Re: Unofficial Skyrim Performance Boost ForgedReality
  47. Dec 25, 13:10      Re: Unofficial Skyrim Performance Boost flechett3
  48. Dec 25, 13:13      Re: Unofficial Skyrim Performance Boost theyarecomingforyou
  49. Dec 25, 14:00       Re: Unofficial Skyrim Performance Boost Kastagir
  53. Dec 25, 14:41        Re: Unofficial Skyrim Performance Boost theyarecomingforyou
  50. Dec 25, 14:01    Re: Unofficial Skyrim Performance Boost Tanto Edge
  51. Dec 25, 14:10     Re: Unofficial Skyrim Performance Boost Krovven
  52. Dec 25, 14:16     Re: Unofficial Skyrim Performance Boost ^Drag0n^
  54. Dec 25, 19:57     Re: Unofficial Skyrim Performance Boost Jerykk
  55. Dec 26, 05:27      Re: Unofficial Skyrim Performance Boost Theo
  56. Dec 26, 05:48       Re: Unofficial Skyrim Performance Boost Jerykk
  57. Dec 26, 06:09        Re: Unofficial Skyrim Performance Boost Theo
  58. Dec 26, 06:31         Re: Unofficial Skyrim Performance Boost Jerykk
  59. Dec 26, 08:04          Re: Unofficial Skyrim Performance Boost Theo
  60. Dec 26, 20:01           Re: Unofficial Skyrim Performance Boost Jerykk
  61. Dec 26, 21:29        Re: Unofficial Skyrim Performance Boost Tanto Edge
  62. Dec 26, 22:25         Re: Unofficial Skyrim Performance Boost Jerykk
  64. Dec 27, 03:36          Re: Unofficial Skyrim Performance Boost Tanto Edge
  66. Dec 27, 06:15           Re: Unofficial Skyrim Performance Boost Jerykk
  69. Dec 28, 01:39            Re: Unofficial Skyrim Performance Boost Tanto Edge
  70. Dec 28, 05:05             Re: Unofficial Skyrim Performance Boost Jerykk
  63. Dec 27, 01:54      Re: Unofficial Skyrim Performance Boost ^Drag0n^
  65. Dec 27, 06:08       Re: Unofficial Skyrim Performance Boost Jerykk
  67. Dec 27, 23:20        Re: Unofficial Skyrim Performance Boost ^Drag0n^
  68. Dec 28, 01:34         Re: Unofficial Skyrim Performance Boost Jerykk
  79. Dec 31, 14:08          Re: Unofficial Skyrim Performance Boost ^Drag0n^
  80. Jan 1, 03:40           Re: Unofficial Skyrim Performance Boost Jerykk
  36. Dec 25, 02:43 Re: Unofficial Skyrim Performance Boost Tanto Edge
  37. Dec 25, 03:11  Re: Unofficial Skyrim Performance Boost LittleMe
  38. Dec 25, 04:41   Re: Unofficial Skyrim Performance Boost eRe4s3r
  71. Dec 28, 20:12 Re: Unofficial Skyrim Performance Boost Tanto Edge
  72. Dec 28, 21:52  Re: Unofficial Skyrim Performance Boost Creston
  73. Dec 29, 00:17   Re: Unofficial Skyrim Performance Boost Tanto Edge
  74. Dec 29, 08:34  Re: Unofficial Skyrim Performance Boost Jerykk
  75. Dec 29, 14:49   Re: Unofficial Skyrim Performance Boost Tanto Edge
  76. Dec 29, 20:32    Re: Unofficial Skyrim Performance Boost Jerykk
  77. Dec 31, 00:35 Re: Unofficial Skyrim Performance Boost Creston
  78. Dec 31, 13:49  Re: Unofficial Skyrim Performance Boost ^Drag0n^


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