FarCry is seems to be better than ever - not in terms of FPS but in terms of clarity and smoothness.
benches are roughly the same as build 2138 for me - slighly up on build 2126.
I have'nt got a copy of Halo to hand so cant bench that sadly.
People seem to forget that DX has an awful lot to do with there audio output as well - I have to say that my sound quality is leaps and bounds ahead of DX9.0b - I mean a serious improvement in 5.1 positioning and background "ambient" noises.
This release has more files than before - many of which are audio files.