I have had a few PNY cards over the years, most recently an 6800GT. They were all very stable, reliable cards with no heat issues or other problems at all. The only down I could think of is that EVGA has a more comprehensive warranty I believe for that $20. Also when virtually everyone was getting good OCs with their 6800GTs in the day, I was never able to get mine much over stock without artifacting. This shouldn't be much of an issue with the 8800 series though as they are all the same card with only diff heatsinks/bundles/etc.
If every dollar counts you can't go wrong with the PNY. If the warranty looks enticing or you think there is the slightest chance their 90 day trade-in clause might be useful to you then spend the extra $20.
Well, I think Im gonna go for the PNY.
To be sincere longer/better guarantee and step up programs are the same for me, since I live overseas and Im getting them from amazon, so I have to pray and cross my fingers because I cannot ship them back to the US in case of returning or something like that.
Having just purchased a PNY VCG62512SAPB, I have no history to report. However, there appears to be two significant differences when compared to the EVGA's competitive product.
The cooling fins on the PNY are oriented horizontally and are anodized aluminum. The cooling fins on the EVGA are oriented vertically and are black anodized aluminum. I'd expect EVGA's configuration to provide better cooling.
The PNY unit has a toroid coil, probably for a power supply function. I see no toroid on the images of the equivalent EVGA product. The toroid coil could be a source of EMI.