Quote Originally Posted by smitty3268 View Post
You thought wrong.

In particular, one of the hardware requirements for OpenCL is a particular kind of cache - so that multiple shaders can share the same data - which wasn't implemented in Radeon hardware until the Evergreen generation.
Are you guys maybe thinking of the OpenCL 1.1 spec, which would be right for Evergreen? As I remember openCL 1.0 spec has been supported by AMD since 2008, supplanting "Close To Metal" for GPGPU.

IIRC DirectX10/OpenGL3 class hardware has OpenCL1.0 support, while DirectX11/OpenGL4 class hardware has OpenCL1.1 support.

Now though, an HD2600XT would be pretty slow for compute and does not support double percision as only the top end cards of each generation get that ability, even if the mid end cards of the next gen are just as, if not more powerful.

I'd just pickup an HD6670 or faster, the HD6670 would use less power, be much faster and supports OpenCL.