ATIccelerator II for Mac

Used ATIccelerator II for Mac?

ATIccelerator II Analysis

AI Assisted Content · June 11, 2026

Not written by CNET Staff.

ATIccelerator II is a free utility designed for Mac users to enhance the performance of ATI graphics cards. This application allows users to fine-tune their graphics settings, providing a range of options for optimizing performance and stability. Key features include the ability to adjust clock speeds, memory settings, and fan control, which can lead to improved graphics performance in demanding applications and games.

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Free

The app's user-friendly interface simplifies the process of managing graphics settings, making it accessible for users with varying levels of technical expertise. Additionally, ATIccelerator II supports multiple ATI graphics card models, ensuring broad compatibility. Overall, this utility serves as a valuable tool for users looking to maximize the capabilities of their ATI graphics hardware.

ATIccelerator II for Mac

Used ATIccelerator II for Mac?

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Full Specifications

GENERAL

Release: May 26, 2006

Latest update: June 11, 2026

Version: 1.0.6b

OPERATING SYSTEMS

Platform: Mac

Operating System

Mac OS X 10.4
Mac OS X 10.3.9
Mac OS X

Additional Requirements: Mac OS X 10.3.9 or laterATI card no older than the Rage 128

POPULARITY

Total Downloads: 459

Downloads Last Week: 0

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Last Updated

User Reviews

4.6/5

5 User Votes

Faster screens
dbuia1_dotmacJune 1, 2010
Pros
very easy to use
Cons
would like more info on functions and alerts.
Summary
Nice lil tool
F-3000December 27, 2006
Pros
Cons
Summary
This review was originally posted on VersionTracker.com.<br />Very simple, very easy to use. No rebooting needed to change the numbers. (only reboot required is after install) Gives visible (mostly positive) effect with most games and apps when giving 10% boost to the v-card. It works nice. But I wouldn't suggest giving much more than max 10%, as higher numbers may damage the graphic card permanently - especially if you don't provide extra cooling. For laptop-users: You can use this tool to lower energy-consume of the graphic card by lowering the graphic CPU-speed. While in other hand, you can expect extra power-consume when you increase the speed.
Battery Life
vkrejciJune 11, 2006
Pros
Cons
Summary
This review was originally posted on VersionTracker.com.<br />Machine: G4 PowerBook (Alu, 2004), 15, GHz, 1GB RAM, ATI 9700/64MB, OS X 10.4. Increased processor clock speed to 450 (+15%) and memory speed to 225 (+11%), so far no problems. MS Word windows behaved somewhat erratically, and it appeared to me that my PowerBook just sucked the power from the battery. Then I underclocked the processor to 126 MHz and memory to 63 MHz. No idea if this are the real numbers, but indeed, I saw a decreased in fps in No Limits (a rollercoaster simulator), but even with the highest resolution, screen size detail, bit depth etc, the framerate rarely dropped below 20 fps, most of the time it was around 24-26 which made no difference in terms of user experience compared to 40+ fps with the card "cranked up". But most important, the ventilator remained silent (while it starts almost immediately with the overclocked card..). Perhaps this little app turns our to be more useful than intended by the author
This software works amazingly!
petersconsultMay 26, 2006
Pros
Cons
Summary
This review was originally posted on VersionTracker.com.<br />It added 10fps in X-Plane on a 1.25GHz PowerBook G4! Now let's pray a version for the X1600 can be developed
Great as always
nykel1May 26, 2006
Pros
Cons
Summary
This review was originally posted on VersionTracker.com.<br />Gives every ATI user a reliable +10% more of grafics power. Most cards crash over +25% so take +10% and you are on the right side even when playing your latest game in a hot summer night. With +10% I had never a problem on different Macs. Read the manual before going over +10% or you will possibly brake your card!!

Developer’s Description

By thomas perrier

on the fly ATI card overclocking tool

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 Graphiccelerator 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!)