From some time I have an Radeon HD 4650 AGP graphic card. I wanted to start minig on my GPU, as it brings more BTC, but miners are not able to find my card. I've checked it with GPU Caps Viewer, and it shows that it does not support OpenCL Is it true? If it normally support it, how can I make it work? Regards, Cam
I happen to own both HD 4650 and 4670 AGP cards and have already verified that they do indeed support OpenCL 1.0 at least in windows environment(tested on windows xp and windows 7 32 bit).
I did notice, how ever, that with most catalyst versions they are not recognized as OpenCL devices, so you might have to play around with driver/app version. Mainly I would suggest using catalyst version 11.9 agp hotfix.
I've tested performance of the cards in oclhashcat benchmark and here are the results for MD5 brute forcing on each cards:
HD4650 AGP: 265.6M/s @ 600MHz HD4670 AGP: 329.1M/s @ 750MHz
One more thing to keep in mind is that for OpenCL to work you need a CPU with SSE2 or greater. On both of my AGP legacy machines I'm running Pentium 4 prescott.