Doom9's Forum - View Single Post - x265 performance of different builds! (GCC,ICC,VS/VC)

Ma · 16th April 2016, 12:27

0. In theory it is possible to build x265 for Windows with clang.

1. From my speed tests, if your CPU doesn't have SSE4, the fastest are GCC 6 builds, otherwise VS 2015 builds.

2. For current CPU (AVX/AVX2) the best are VS 2015 builds. Windows version isn't important if it is Windows 7 64bit or newer 64bit.

3. Yes, there are (but very small). In file source/encoder/sao.cpp some decisions are made according to floating point computations that depends on compiler/optimize options.

16th April 2016, 12:27	#4 \| Link
Ma Registered User Join Date: Feb 2015 Posts: 326	0. In theory it is possible to build x265 for Windows with clang. 1. From my speed tests, if your CPU doesn't have SSE4, the fastest are GCC 6 builds, otherwise VS 2015 builds. 2. For current CPU (AVX/AVX2) the best are VS 2015 builds. Windows version isn't important if it is Windows 7 64bit or newer 64bit. 3. Yes, there are (but very small). In file source/encoder/sao.cpp some decisions are made according to floating point computations that depends on compiler/optimize options.