CPU vs GPU hash speeds

hongman · 10-24-2014, 12:13 AM

Hi all

Thought I'd try here as it is security related.

I've read a few articles and I know there is a HUGE difference on how fast a GPU can process hashes vs a CPU...but my question is:

1. Does anyone know of a decent website which holds a decent database of comparison for different GPU's/CPU's?

I'd like to see at which point the GPU overtakes the CPU, for example comparing an old/basic GPU vs top of the range CPU. Just to get a better understanding.

I can then also compare my speeds vs these to make sure I am getting similar speeds, to ensure there are no odd driver issues etc slowing things down.

For example (old hardware I know)

Desktop PC - Nvidia GeForce GT630, i7 8 core @ 2.67Ghz on WPA2 hash with 8 char keyspace l-alpha
GPU

Code:

Session.Name...: cudaHashcat
Status.........: Aborted
Input.Mode.....: Mask (?1?2?2?2?2?2?2?3) [8]
Hash.Target....: 
Hash.Type......: WPA/WPA2
Time.Started...: Fri Oct 24 04:57:55 2014 (1 min, 34 secs)
Time.Estimated.: > 10 Years
Speed.GPU.#1...:     8174 H/s
Recovered......: 0/1 (0.00%) Digests, 0/1 (0.00%) Salts
Progress.......: 761856/5533380698112 (0.00%)
Skipped........: 0/761856 (0.00%)
Rejected.......: 0/761856 (0.00%)
HWMon.GPU.#1...: 20% Util, 60c Temp, N/A Fan

CPU

Code:

Input.Mode: Mask (?l?l?l?l?l?l?l?l) [8]
Index.....: 0/1 (segment), 208827064576 (words), 0 (bytes)
Recovered.: 0/1 hashes, 0/1 salts
Speed/sec.: - plains, 2.39k words
Progress..: 7615320/208827064576 (0.00%)
Running...: 00:00:53:07
Estimated.: 281:16:12:07

zhjim · 10-24-2014, 02:47 AM

https://en.bitcoin.it/wiki/Non-speci...are_comparison should get you set

hongman · 10-24-2014, 12:40 PM

Awesome thank you!

I saw a lot of coin sites but I wasnt sure if they were comparable

zhjim · 10-27-2014, 03:10 AM

It's hard to compare different coin types. As far as I know bitcoin uses a different algorithm then f.e. litecoin uses. So they are not really comparable but the site should give a decent ballpark on deciding what to use or buy. Though if you want to start on bitcoin think about buying a dedicated hardware for mining. Dont use GPU or even CPU. Compare to the dedicated hardware they just suck way. Litecoin and Feathercoin are a different approach. You just have to dig some.

hongman · 10-27-2014, 09:50 AM

I was actually using this for comparison on password hashes

zhjim · 10-28-2014, 02:57 AM

Ah okay. Then the numbers should hold true. Just for the fun amazon also has some instances with dedicated gpu's.