Like I said, you have to overclock the 560 to be fair. And we arent talking about Nvidia's marketing strategy on reference clocks here bro. Beats it plenty, 5% or more in all tests. And it overclocks pretty darn well too... Soooooooo yeah. It beats it, period.A GTX460 1GB and a GTX465 are equal performance wise, but the GTX465 consumes more power. The GTX465 is better than a GTX460 768MB since the disabled ROPS really hurt the GTX460's performance, not to mention dropping below 1GB of memory actually does have an effect on certain current games.
The GTX560 just barely beats it, and again that is because nVidia went way conservative with the first fermi clock speeds. I haven't seen a GTX470 yet that couldn't do 800MHz/1000MHz, and at 800MHz/1000MHz, a GTX470 beats any overclocked GTX560.
With the facts straight, the only question here is if that $50 is worth it to the buyer.