The reason the GTX 560 Ti 448 Core makes good use of the 'limited edition' moniker is down to a much smarter bit of marketing than Nvidia usually uses.
Really this card is nothing like the old, vanilla GTX 560 Ti at all, in fact it's actually got much more in common with the GTX 570.
It's running the same GF 110 GPU instead of the GTX 560 Ti's GF 114. That gives it 14 of the streaming microprocessors to the other card's 8 and comes with a good chunk more ROPs. Eight in fact. It's also got a full 1,280MB frame buffer too.
If the GPU configuration of 448 cores, 56 texture units and 40 ROPs sounds familiar, you probably ought to get out more. That and you're probably recognising the layout of the original GTX 470.
So in essence this latest card is a hybrid of the GTX 470 and the GTX 570, and has little to do with the GTX 560 Ti that it's taking the name of.
That's no bad thing at all. If Nvidia had followed tradition and brought this card out around the holiday period calling it the GTX 570 limited edition we might have been baying for blood.
As it is we're far happier at the thought of a mainstream card getting some more technical loving.