16X vs 8X GPU

onefstsnake · Nov 30, 2009

The rig I added last night to the fold has dual PCIe slots.
But one is 16x the other 8x...

I currently have 1 8600GTS XXX card in the 16x slot.
Would PPD be affected by the half speed slot if I were to add another card?

And one last thing. Does the 8600GTS need a dummy plug to fold?

Thanks!

Bobnova · Nov 30, 2009

Speed shouldn't be an issue at all in 8x slots.

sneakysnowman · Nov 30, 2009

Even PCIe x4 is fast enough for folding.

You won't need a dummy plug with new drivers. But in my experience GPUs folding under Vista / 7 without dummies tend to EUE a lot. But that's maybe just my bad luck. With XP and linux, dummy plugs are not necessary.

onefstsnake · Nov 30, 2009

Ok.

The OS on the rig in question is XP.

Would it be better to buy another 8600GTS XXX for the other slot, or pick up something a bit faster?

Computekinc.us · Nov 30, 2009

I would shoot for a 8800GT of any flavor. The 8600GT(S) is going to get you 1500 PPD+ compared to a 8800GT 4500 PPD+. I have found them on the classifieds here or CL for $50 and up.

onefstsnake · Dec 1, 2009

Hmm. How about sell the 8600 GTS XXX and get a GTX 285?

What kind of PPD do they put out?

Sir-Epix · Dec 1, 2009

onefstsnake said:
Hmm. How about sell the 8600 GTS XXX and get a GTX 285?

What kind of PPD do they put out?

I don't know about folding but for seti@home I traded up my 8600GTS for a 260GTX. Went from 1,500 ppd to 10,000 ppd (we call them cobblestones). And right now the 260GTX is the best bang for the buck for seti@home. Just my 2 cents.

onefstsnake · Dec 1, 2009

Ok. Maybe Ill wait for the new 300 series to be released and snag one from someone upgrading.

Thanks

ChasR · Dec 1, 2009

The GTX260 is tops in the ppd/watt category in the GT200 based cards. At about $200 new, it is tops (or close to it) in the ppd/$ category among the GT200 cards.

onefstsnake · Dec 1, 2009

Hmm. Good to know.

Thanks!

16X vs 8X GPU

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