Date: Tue, 30 Sep 2014 21:01:12 +0200 From: magnum <john.magnum@...hmail.com> To: john-dev@...ts.openwall.com Subject: Re: NVIDIA GTX 970 (Maxwell 2 / GM204) opencl benchmarks On 2014-09-30 06:53, Royce Williams wrote: > On Mon, Sep 29, 2014 at 10:07 AM, magnum <john.magnum@...hmail.com> wrote: >> I'd much appreciate a benchmark before/after trying this change: (...) > Looks to have not made much of a difference: > > $ ../run/john --test --format=wpapsk-opencl > Device 0: GeForce GTX 970 > Benchmarking: wpapsk-opencl, WPA/WPA2 PSK [PBKDF2-SHA1 OpenCL]... DONE > Raw: 134663 c/s real, 135591 c/s virtual Great, so we don't seem to need any kernel changes for that. But sooner or later we'll find Maxwell-specific optimizations. So using current code, GTX970 is basically on par with HD7970 which means GTX980 is on par with R9 290X. Hashcat forums tell the same story. > From the tests, ntlmv2-opencl, pwsafe-opencl and rakp-opencel seem a bit > better. Others look about the same. All three of those currently have transfer bottlenecks, so this was probably coincidental. Thank you for testing this! magnum
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