High end GFX card with a low res monitor

[kevchenco]

Looking for a bit of advice

I was currently holding out for the GTX 670 but it looks as though it is gonna be coming in at around £300 (really i wanted to pay 250) and the GTX 660 is 6 months away according to latest rumours.

The monitor i have is fairly low res 1280 * 960 (i think) and im not planning on getting anything either bigger or better (I run it at lower res anyway cos i cant see the planes on full switch)

Basically is it worth shelling out on a new 6 series GTX when i could buy a 5 series and crank up the quality at low res. How much difference does the res make on performance

Would there be much difference between the two in anyones opinion?

Currently i am running a 460