Date: Sat, 8 Dec 2012 23:40:38 +0100 From: magnum <john.magnum@...hmail.com> To: john-users@...ts.openwall.com Subject: Re: GPU based cracking, AMD or NVIDIA On 8 Dec, 2012, at 19:57 , Solar Designer <solar@...nwall.com> wrote: > On Fri, Dec 07, 2012 at 07:45:21PM +0100, magnum wrote: >> Fact is even that current nvidia cards are often more or less slower than the previous generation. At first I thought it was due to compilers and optimizers not being mature but this fact stands. At best, a GTX680 is insignificantly faster than GTX580. > > Are you aware of any password cracking related task where GTX 680 is any > faster than GTX 580? I've only seen (non-JtR) benchmarks showing it > being slower - often several times slower, even. (I don't have one to > test myself, though.) With late OpenCL drivers the gap has decreased a lot, or the 680 has even become the winner at times - with a really tiny margin. I have never seen the 680 significantly outperform a 580 in any application. Like you, I have seen the opposite but I think that was mostly due to premature drivers that did not handle Kepler well. magnum
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