I have no problem with ATI drivers...
Except that nasty 100% CPU bug right ?
Well that explains it then
Topic: Which card for mining? (Read 1858 times)
Except that nasty 100% CPU bug right ?
Well that explains it then
I have no problem with ATI drivers...
Except that nasty 100% CPU bug right ?
I picked up a used 5830 on Amazon for just under $100 and it's fantastic, I'd love to pick up a few of these https://bitcointalksearch.org/topic/wts-5830s-70-each-free-shipping-52506 but have to wait until I can post there lol
Both teams have shit drivers. They are both hit and miss. If un/reinstalled properly, both work well for their *intended* purposes. Mining is not the intended purpose, and setting CPU affinity fixes this...well, mostly!
Tell that to the single core CPUs
Both teams have shit drivers. They are both hit and miss. If un/reinstalled properly, both work well for their *intended* purposes. Mining is not the intended purpose, and setting CPU affinity fixes this...well, mostly!
I have no problem with ATI drivers...
Except that nasty 100% CPU bug right ?
I have no problem with ATI drivers...
I still try to get the 5XXX series as they are now far cheaper compared to the 6xxx. I do have the 6xxx but normally for games and only mining in the spare time.
I use a HD6850 for hashcracking, definately ATI for speeds and performace, but their drivers are damn awful!
It's a hardware thing, no matter what code or language you use.
That's funny, I found out that my ATI cards were performing 3-4x better than my Nvidia equivalent cards...
Maybe I'm not using good engines ? I even used CUDA, which was supposed to help Nvidia cards..
Maybe I'm not using good engines ? I even used CUDA, which was supposed to help Nvidia cards..
NVidia makes fine cards but the architecture they use is complete poop (a technical term) for mining.
So technical
1) ATI and nVidia chose different tradeoffs on how to get good graphics performance; ATI maximizes the number of shaders on the chip, whereas nVidia prefers more complex shaders running at higher clock speeds. For 3D rendering, which one of these is better depends on the application... but for the kind of work that is done by the SHA-256 algorithm, having 3x as many shaders is better than each shader running 2x as fast.
2) ATI's SPU architecture happens to have a "rotate right" opcode, whereas in nVidia's SPU architecture it takes 2-3 operations to do. SHA-256 uses bit rotation a lot.
Correct.
ATI Shaders > nVidia CUDA Cores
(for mining) 
NVidia makes fine cards but the architecture they use is complete poop (a technical term) for mining.
So technical
1) ATI and nVidia chose different tradeoffs on how to get good graphics performance; ATI maximizes the number of shaders on the chip, whereas nVidia prefers more complex shaders running at higher clock speeds. For 3D rendering, which one of these is better depends on the application... but for the kind of work that is done by the SHA-256 algorithm, having 3x as many shaders is better than each shader running 2x as fast.
2) ATI's SPU architecture happens to have a "rotate right" opcode, whereas in nVidia's SPU architecture it takes 2-3 operations to do. SHA-256 uses bit rotation a lot.
Pick some 5830s up from shakaru. Buy with trust
https://bitcointalksearch.org/topic/wts-5830s-70-each-free-shipping-52506
Nice! I'll be sure to show whoever I ask that link. I hope he doesn't run out anytime soon. https://bitcointalksearch.org/topic/wts-5830s-70-each-free-shipping-52506
Pick some 5830s up from shakaru. Buy with trust
https://bitcointalksearch.org/topic/wts-5830s-70-each-free-shipping-52506
https://bitcointalksearch.org/topic/wts-5830s-70-each-free-shipping-52506
Thanks, guys! I guess it looks like I was right after all, and I don't want one that costs too much so I'll go with the 5830.
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nVidea has better quality cards
Uhm no. Just take a little good search as I can't seem to find the video I was looking for: http://www.google.com/search?q=loud+ati+card
Anyways, wasn't my idea to start a war on this topic. It's about which card is better for mining.
Quote
nVidea has better quality cards
Uhm no. NVidia makes fine cards but the architecture they use is complete poop (a technical term) for mining.
So technical
If you find a 5000 series card generally they are cheaper and better for mining.
If you are in the US you pretty much can't beat the 5970 on MH/W or MH/$ or MH/slot. Watch newegg. Their normal price is $500 but on Black Friday they dropped it to $300. They might have another sale. If you snag a 5970 for $300 it is pretty much unbeatable.
If you are in the US you pretty much can't beat the 5970 on MH/W or MH/$ or MH/slot. Watch newegg. Their normal price is $500 but on Black Friday they dropped it to $300. They might have another sale. If you snag a 5970 for $300 it is pretty much unbeatable.
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