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ATIccelerator II can change ATI graphics cards frequencies live, on-the-fly, under Mac OS X. It's much more sophisticated and convenient to use than ATIccelerator I for the following reasons:

  • no potentially dangerous flashing required
  • no cumbersome three-steps process (dump, modify, then reflash ROM)
  • no need to reboot for every frequency change
  • no OS 9 required (that's right, G5s and other recent OS 9-free Macs are now supported!)

What's New

Version 1.0.6b:
  • Fixed memory frequency for the 1.5 GHz Mac mini's Radeon 9200.


  • Mac OS X 10.3.9
  • ATI graphics card not older than the Rage 128

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5 14


Current Version (1.x)


Downloads 34,189
Version Downloads 16,681
License Free
Date 26 May 2006
Platform OS X / PPC 32
Price Free
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