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Tuesday, June 18, 2013
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RE: ATI GPU by: Theo Valich on 4/25/2009
A while ago, I saw a chart with ElcomSoft's code running on Radeon 4870 and 4870X2... both cards were significantly faster than nVidia's card, and almost came close to a 4GPU setup by nVidia - Tesla S1070.

I wrote about that chart in my blog, and you can check it here:

http://bit.ly/gpgpuativsnvidia

Thanks for the feedback... definitely interesting stuff, we'll call some people around and get to the bottom of this story.
Request of edits and links ;) by: Gipsel on 4/24/2009
I guess my comment was quite a bit unclear.
The post on the ATI Stream developer forum was posted by the author of the currently *fastest* avavilable MD5 cracker for CPUs as well as GPUs (both nvidia and ATI) not the creator of the elcomsoft tool.

His CUDA version is already quite a bit faster than the elcomsoft variant. He gets 720 million hashes/s on a GTX280 while elcomsoft only gets 493 Mhashes/s (and 920 Mhashes/s on a dual GPU GTX295). But it is all dwarfed by a single HD4870 obtaining 1286 Mhashes/s.

I guess elcomsoft should try to hire that guy from Belarus ;)
That's cool! by: Gipsel on 4/24/2009
Interesting to see that now in a commercial product. The developer of the GPU code [url=http://forums.amd.com/devforum/messageview.cfm?catid=328&threadid=101209&messid=951670&parentid=922118&FTVAR_FORUMVIEWTMP=Single]posted some comments on the ATI Stream developer forum about that topic[/url]. Interestingly he said he can reach the theoretical performance on both nvidia (without that additional MUL/SFU pipe) and ATI cards. According to the numbers posted there a HD4870 is about 80% faster than a GTX280. That means a single HD4890 would be even slightly faster than the dual GPU GTX295 for this kind of tasks.

I really wonder what happend to the ATI code path in the process.
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