Personal computing discussed
Moderators: renee, farmpuma, just brew it!
drfish wrote:... I'm thinking about building a basement GPU folding array ...
farmpuma wrote:You might consider waiting for Maxwell GPUs with higher core densities than the 750 series.
farmpuma wrote:From what I've read, with the advent of the core 17 work units the Radeon GCN video cards now achieve folding PPD almost equal to Nvidia Fermi and Kepler cards of equal gaming performance. In general the Nvidia advantage is now a smallish percentage instead of the multiple amounts of PPD of the previous work unit cores.
The Kepler GPUs use considerably less electrical power at full load than equivalent Radeons and while I would expect the Maxwell GPUs to maintain a similar advantage in PPD with their even more eco friendly performance I haven't had time to search the folding forum for data to support my theory.
Kougar wrote:drfish, if you're that antsy ya might as well post in their forum!farmpuma wrote:From what I've read, with the advent of the core 17 work units the Radeon GCN video cards now achieve folding PPD almost equal to Nvidia Fermi and Kepler cards of equal gaming performance. In general the Nvidia advantage is now a smallish percentage instead of the multiple amounts of PPD of the previous work unit cores.
The Kepler GPUs use considerably less electrical power at full load than equivalent Radeons and while I would expect the Maxwell GPUs to maintain a similar advantage in PPD with their even more eco friendly performance I haven't had time to search the folding forum for data to support my theory.
Don't forget to look at the CPU overhead involved too! Core 17 projects suck up almost a core's worth of CPU overhead on NVIDIA cards... reminds me of when F@H first began GPU folding around 2008, maxing the GPU meant maxing out a full core just for driver overhead. Except Core 15 projects don't even use enough to register 1% by comparison, so I don't really know why Core 17 needs so much again. It is a big issue with AMD cards before GCN, but I don't know how much CPU overhead Core 17 still requires on GCN parts?
Kougar wrote:drfish, if you're that antsy ya might as well post in their forum!
drfish wrote:So I've done two of the big ~70k WUs on my GPU now and the latest one finished last night but they aren't on my EOC stats yet? Is that normal?
drfish wrote:
25k PPD for my entire farm of dozens of computers... Crazy...[/i]
Flying Fox wrote:I thought the Nvidia CPU hogging issue is with the older Core x15 and not the latest x17? I could be wrong though.
drfish wrote:Oh gawd no! The electrical consumption of Ellie's accessories doesn't leave much in the power budget for folding (especially in the summer when we need to use even more AC to fight the heat those things kick out)...