So, I'm looking to upgrade the final two parts of my rig, GFX and PSU. I already know what PSU I'm getting, and I actually already know what card I'm getting, technically speaking, however, they do the same card in 1GB and 2GB revisions. Is there any noticable difference between the two, generally speaking?
I run my games maxed out, at 1920x1080 if and when I can. At the minute my 5770 is doing this just fine with Rage, but I'm looking to future proof a bit more than this card.
Here's the two.
MSI GeForce GTX 560Ti OC Twin FrozR II 1024MB GDDR5 PCI-Express Graphics Card **Supplied with FREE Batman: Arkham City PC game** [N560GTX-TI OC]
MSI GeForce GTX 560Ti OC Twin FrozR II 2048MB GDDR5 PCI-Express Graphics Card **Supplied with FREE Batman: Arkham City PC game** 
If you are going to overclock it grab the 2gb if not the 1gb is fine.