07-09-2016, 06:59 PM
Hello.
The latest hashcat v3.00 is a fantastic work enabling for the first time all OpenCL devices and the simultaneous use of them.
A few comments/ questions:
1) On my ancient Radeon 5750 (Juniper) I saw a huge drop in performance compared to v2.01 using the exact same system (Win 10 x64 - Catalyst 15.11.1 - Radeon 5750) on various popular algorithms like:
LM v2.01 : 1238 MH/s -> 190 MH/s (!) v3.00
WPA v2.01: 36000 H/s -> 19750 v3.00
7-zip v2.01: 639 H/s -> 250 H/s v3.00
Are you going to restore previous performance of old ATI cards or not interested in supporting such old devices ?
2) If I understand correctly the HUGE performance increase in my CPU (Haswell Core i7-4790) is the result of rebuilding from scratch the SIMD engine.
But is CPU supported via OpenCL only ?
I mean the previous hashcat (hashcat legacy) could use the CPU directly without OpenCL, although it was obviously not optimized.
Wouldn't hashcat be a lot faster if you supported the same new optimized SIMD engine directly without OpenCL's overhead ?
For the record I get ~ 1050 MH/s (!) on MD4 and NTLM but only 110 MH/s on LM
3) Is the NVIDIA's OpenCL implementation/support on par with AMD ?
I think they only care about CUDA and I'm not sure they have a proper OpenCL implementation for their cards.
4) Does NVIDIA have an OpenCL 2.x driver ?
Does it matter ?
I mean is OpenCL v2.x any faster than v1.x ?
Thanks!
The latest hashcat v3.00 is a fantastic work enabling for the first time all OpenCL devices and the simultaneous use of them.
A few comments/ questions:
1) On my ancient Radeon 5750 (Juniper) I saw a huge drop in performance compared to v2.01 using the exact same system (Win 10 x64 - Catalyst 15.11.1 - Radeon 5750) on various popular algorithms like:
LM v2.01 : 1238 MH/s -> 190 MH/s (!) v3.00
WPA v2.01: 36000 H/s -> 19750 v3.00
7-zip v2.01: 639 H/s -> 250 H/s v3.00
Are you going to restore previous performance of old ATI cards or not interested in supporting such old devices ?
2) If I understand correctly the HUGE performance increase in my CPU (Haswell Core i7-4790) is the result of rebuilding from scratch the SIMD engine.
But is CPU supported via OpenCL only ?
I mean the previous hashcat (hashcat legacy) could use the CPU directly without OpenCL, although it was obviously not optimized.
Wouldn't hashcat be a lot faster if you supported the same new optimized SIMD engine directly without OpenCL's overhead ?
For the record I get ~ 1050 MH/s (!) on MD4 and NTLM but only 110 MH/s on LM
3) Is the NVIDIA's OpenCL implementation/support on par with AMD ?
I think they only care about CUDA and I'm not sure they have a proper OpenCL implementation for their cards.
4) Does NVIDIA have an OpenCL 2.x driver ?
Does it matter ?
I mean is OpenCL v2.x any faster than v1.x ?
Thanks!