So I'm building myself a new PC and I'm looking to repurpose my old rig into a dedicated hashing system.
I'm looking for a few GPU's to stick in it, preferably 3 or so. My budget is around $6-700 USD. I don't particularly mind 2nd hand cards.
From my initial googling the reference 970 looks like my best bet.
What card(s) would you guys recommend I get?
Just throwing some ideas out there:
If cost of electricity is not a concern, agreed about 970s. They're going on eBay for around $200-$220, so 3 of those would be a good fit. (And I wouldn't go older or smaller). But for the same price, a single new 1080 (when in regular stock) is close to 2 used 980 Tis or 3 used 970s. If electricity matters, a single 1080 is more attractive. A 1080 will probably also be supported longer by NVIDIA, but that's a ways out.
These links may be useful for comparing performance:
https://gist.github.com/epixoip
https://docs.google.com/spreadsheets/d/1...SsYEqOoqco
Double-check my work with your own research (on price and performance), but back of my napkin, for MD5, stock clocks, theoretical max watts:
970 SC: 10.8 GH/s, 170W (SCs are factory overclocked a little), ~3 for your budget = 32.4 GH/s, 510W
980 Ti: 16 GH/s, 250W for most, almost 2 for your budget = 32 GH/s, 500W
1080: 25 GH/s, 180W for most, 1 for your budget = 25 GH/s, 180W
In practice, power consumption will be a little lower. You'll also probably be able to overclock them a bit. And with fewer cards, you have room to add another later without having to pull one and sell it.
Hope that helps!
(10-08-2016, 03:06 PM)royce Wrote: [ -> ]Just throwing some ideas out there:
If cost of electricity is not a concern, agreed about 970s. They're going on eBay for around $200-$220, so 3 of those would be a good fit. (And I wouldn't go older or smaller). But for the same price, a single new 1080 (when in regular stock) is close to 2 used 980 Tis or 3 used 970s. If electricity matters, a single 1080 is more attractive. A 1080 will probably also be supported longer by NVIDIA, but that's a ways out.
These links may be useful for comparing performance:
https://gist.github.com/epixoip
https://docs.google.com/spreadsheets/d/1...SsYEqOoqco
Double-check my work with your own research (on price and performance), but back of my napkin, for MD5, stock clocks, theoretical max watts:
970 SC: 10.8 GH/s, 170W (SCs are factory overclocked a little), ~3 for your budget = 32.4 GH/s, 510W
980 Ti: 16 GH/s, 250W for most, almost 2 for your budget = 32 GH/s, 500W
1080: 25 GH/s, 180W for most, 1 for your budget = 25 GH/s, 180W
In practice, power consumption will be a little lower. You'll also probably be able to overclock them a bit. And with fewer cards, you have room to add another later without having to pull one and sell it. ![Smile Smile](https://hashcat.net/forum/images/smilies/smile.gif)
Hope that helps!
How would you compare the 970 SC to the R9 290X ?
They seem to be more reliably available a bit cheaper each and they seem to perform similar. Power around here is very cheap, so it's not a worry and they won't be running 24/7 365 (yet).
The numbers that I posted, plus the Google doc, should let you compare R9 290X with 970 SC. I prefer NVIDIA over AMD, even with a slightly lower speed, but YMMV.
![Smile Smile](https://hashcat.net/forum/images/smilies/smile.gif)