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A comment on 48th Mersenne prime found. Parent comment

Re:48th Mersenne prime found by masklinn on Tuesday February 05, 2013 @10:24AM (#5171072)
Yes it seems very odd, especially as they also mention CUDALucas running in 3.7 and 7.7 days on two different NVidia GPUs (one a 560, the other one unnamed — maybe a Fermi board?)
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Re:48th Mersenne prime found by sp332 on Tuesday February 05, 2013 @10:40AM (#5171181)
I have the 560 Ti mentioned in the article. It's a mid-to-high grade card, better than most $200 cards IMHO but if you're willing to spend the cash, it's not at all difficult to find a card with more horsepower. Dropping a cool kilodollar will net you a GTX 690 which seems to be the right relative speed. http://www.hwcompare.com/12683/geforce-gtx-560-ti-vs-geforce...

Edit: since Dubslow's reply, here's the comparison for the GTX 580: http://www.hwcompare.com/9133/geforce-gtx-560-ti-vs-geforce-... It's also about $400.

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