racofer
Thread Incliner
Skyrim was coded in x87 code.
It does not have SSE optimization which has been standard for both AMD and Intel for nearly a decade now. Never-mind the new advanced vector extensions now available. They should have optimized for SSE 4 and AVX... not x87.
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.
Install instructions:
1. Install SKSE, instructions are in its readme.
2. Drop TESVAL.dll from the archive above in to <skyrim root>/Data/SKSE/Plugins. Create the SKSE and Plugins folders if they don't exist.
3. Run the game by launching skse_loader.exe.
Tests show that the "Markath FPS Death Zone" went from ~20FPS without the plugin to ~30FPS with the plugin, framebuffer size 2560x1600, everything maxed except no AA. Not joking or trolling; that's just the worst CPU-bound case I could think of.
Yes you're not reading this wrong. Skyrim was not compiled for the X86 plataform, which means, no compiler optimizations are used. Skyrim doesn't benefit from your precious SSE1/2/3/4 or AMD's 3DNow! CPU extensions, meaning that it runs like that software you used to compile back in computer science school with the gnu compiler when you didn't even knew about this kind of stuff, only your little application was not a multimillion dollar game. Let alone that Bethesda refused to use DX10/11 in their game (DX:HR runs considerably faster in DX11 in my experience, so yes, games that make usage of that API can get performance benefits), now Bethesda can't be bothered to recompile their games for the PC platform.
What that little app does is the good old dll injection through SKSE (Skyrim Script Extender) to force the game executable to use those valuable CPU resources it wasn't using. Many people report increased performance in busy areas of the game (namely Markarth), and I can confirm that claim. I used to get 22fps in that place while maintaining close to 60 everywhere else, now it stays at around 30fps while facing the waterfalls. Bethesda said it was "dem waterfalz are too immershive!" but now we all know this is bullshit. I wonder if Gamebryo games don't suffer from the same issue...
Bethesda : They worry about the PC crowd.
More at: http://www.dsogaming.com/news/skyri...u-optimization-up-to-20fps-performance-boost/