Bitcoin Forum

Hi All,

Only a small fish, but yesterday I upgraded my vid card to the GTX 680 (Super Clocked Signature) from the GTX 580.
Problem is, I cannot get anywhere near the Mhash I was getting with the 580.

Using EVGA Precision X, with the 580 I was getting 164 MHash, and with with 680 I can only reach 115-120 MHAsh.

This doesnt seem right.

Can anyone provide any settings for EVGA Precision X or any other info to help boost the 680 please. I have played with many settings and still crash out if I go over 120MHash.

I have spent hours looking through the forum, but any leads quickley end up moving off the original topic.

Any assistance greatly appreciated.

Otherwise I guess I'll return the 680 and get my money back :)

Thank you.

I dunno so i can't help you but i can tell you that mining with nvidia is a bad bad bad idea, you are mining at a loss

Thanks Gabi.
I have understood that message from the opinions on the forums.

Mining wasnt the only reason for the upgrade, but still looking to maximise the mining potential :)

Cheers for the reply.

If I was to swap the card...What would you suggest?

Excuse my lack of knowledge, but would another card be OK in a NVIDIA motherboard?

Nvidia motherboard? You can fit ATI or NVIDIA in any motherboard  ;) If you want to mine, you have to get an ATI but please note that in these days gpu mining isn't exactly profitable (yeah well, it's a waste of time  :)) and in the next month ASICs should be delivered and they will definitely kill gpu mining.

If I'm not mistaken, there's no CUDA mining kernel with good support for Keplar yet. Seeing as AMD GPU mining is barely worthwhile, I doubt anyone will spend their time optimizing a kernel for nVidia GPUs.

You would be better off getting a $50 three-year-old ATI 5770 and plugging it into a second PCIe slot for >200MHash/s at 1/4 the wattage. Any video card decision that has Bitcoin mining as any part of the purchase criteria immediately rules out nVidia.