Very poor performance with GTX950

[kevin335200]

I don't know if anyone use GTX950 and make a test in MacOS. I test GFXBench and play dota2 in Steam.The score is very disappointing(54FPS,close to GT755m) and the FPS in game is low, either. Under windows the score is pretty good, closing to GTX960.
Anyone ideas? Driver is the latest 367.15.10.25 and it's working (My CPU doesn't have integrated graphics, and system runs smoothly).
Thanks!

 

[kevin335200]

I think GTX950 is very similar to GTX960, which is widely used in build. But in my case it's half down in mac...
Attach CINIBENCH R15 and LuxMark score

LuxMark score is good enough, but FPS in CINIBENCH, GFXbench and real game, is quite low.