What's Important in a GPU?

Open | Hardware

I need a GPU and I never had one.
So I need to understand whats important about a GPU for my uses
I basically need a new GPU because I need to bruteforce hashes and keys (key generation). (e.g. small size RSA, md5, etc).

The GPU clock speed?
The VRAM?
The memory clock?

Posted Nov 16, 2020, 5:49 PM UTC

08
FullOfSpam•

Why would you brute force hashes and keys?

1
shockterOP•

For a sort of work/project I'm doing

At the moment I'm doing this on my i7 and I can't keep going with this.
With the CPU it would take me a year, with a GPU few days or weeks

1
FivePointO26•

You would want a nvidia card with the most cuda cores. Basically the most expensive will be the best as it has the most cuda cores.

I havnt brute forced hashes in like 6 years but it's still going to to take a long time for anything over 10 characters.

1
shockterOP•

> with the most cuda cores.

Thank you

I saw that there are old generation GPUs that has a lot of cuda cores, would it be worth to buy a gtx 770 for 80 euros?

1
FivePointO26•

Gtx770 = 1,536 cuda cores. Rtx 3090 = 10,496 cuda cores

How many characters are the hashes your trying to crack. 8 or under is fine for a 770

1