Is the H264Decoder significant slower on x64 system, like Vista64 , than x32 system, like XP32?
I have a dual quad-core PC (Xeon E5345@2.33 GHz) running both of XP32 and Vista64.
The decompression speed of H264Decoder is 2-3 times faster on XP32 than that on Vista64.
The used IPP is 6.0.
Is it an unknown issue?