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GeForce GTX 650 1GB Gaming Lag

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I'm running OS X 10.8.4 Mountain Lion with GTX 650, I'm not injecting kext for my graphics card, just GraphicsEnabler=No and it works fine, for normal usage. I tried to play some games, Stacking, Puzzle Quest, and Brutal Legend, all of them laggy, sometimes is unbearable. When I playing Left 4 Dead 2 on Steam, I couldn't get my full resolution 1650x1080.


How can I check is my graphics card is running at it's full potential in OS X, and how do I fix it?



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Yep. And this is my graphic card info.

NVIDIA GeForce GTX 650:

  Chipset Model:	NVIDIA GeForce GTX 650
  Type:	GPU
  Bus:	PCIe
  PCIe Lane Width:	x16
  VRAM (Total):	1024 MB
  Vendor:	NVIDIA (0x10de)
  Device ID:	0x0fc6
  Revision ID:	0x00a2
  ROM Revision:	preset 1.0.0
  Resolution:	1680 x 1050 @ 60 Hz
  Pixel Depth:	32-Bit Color (ARGB8888)
  Display Serial Number:	456784567890
  Main Display:	Yes
  Mirror:	Off
  Online:	Yes
  Rotation:	Supported

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