Adobe Photoshop CS5 and Macs

First published on: Wednesday, 5 May 2010

This post is a collection of links to user feedback on using Adobe Photoshop CS5 with Mac computers.

CS5, Graphic Cards and OpenGL

In this MacRumors thread, “jerryrock” wrote the following:

I have been beta testing Photoshop CS5 on both my MacPro (2.66 Ghz quad Xeon with ATI X1900XT video card with 512 vram) and Macbook Pro 2.5 Ghz Core 2 Duo with NVidia GeForce 8600M GT video card with 512 vram).

I can tell you that some advanced Open GL features in Photoshop CS5 are not supported by the ATI X1900XT GPU while it fully supports the GeForce 8600M GT GPU.


When OpenGL is enabled in Photoshop CS5, there are 3 selectable modes available. Basic, Normal and Advanced. Basic — This mode used the least amount of GPU memory and the most basic OpenGL features. Use this mode when experiencing visual defects or general slowdowns in your document window or when running other applications that preoccupy the GPU. Normal — THis mode uses a large amount of GPU memory and advanced OPenGL features to perform color matching, tone mapping and checkerboard blending. This frees the CPU to perform other tasks but may cause visual defects on some GPUs. Advanced — This mode is the most GPU intensive. It uses the same amount of memory as the Normal mode while enabling more advanced techniques to improve drawing performance. This may cause visual defects on some GPUs. The ATI X1900XT is only supported in Basic Mode while the NVidia Geforce 8600M GT is supported in all three modes.

“kbmmb” reports:

Just installed CS5… old 7300GT is supported since I’m on 10.6.3, but only in basic mode. I’m fine with that….didn’t really expect anything more since it’s an older card.

“Nik” writes:

I got a Nehalem MacPro with the ATI Radeon 4870 and OpenGL does not work. Photoshop CS5 does not recognize the card…

Photoshop CS4 works fine though.

“ncmason” writes:

I’m running PS CS5 extended on my 1.83GHz (ATI Radeon X1600) Core Duo iMac.
The only difference I can tell is I’m only able to use Basic mode for OpenGL Drawing.

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