RivaTuner 2.2 is the best & the foremost tweaking utilty available. It provides you everything you may need to tune NVIDIA GPU based display adapters. Advanced tuning features such as driver-level Direct3D / OpenGL and system tuning, flexible profiling system allowing to make custom settings on per-application basis etc. are included... (
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The program works with the following extensions:
rts,
rtp,
rtr and
rtu
