x2's will cope better whenthe games are patched for dual core or in fact are released with dual core optimisations.
Until then the FX remains KING for 3d gaming, but most benchies seem to be maxxed out on those too, seems all the top beches are hovering around the same scores regardless af how high the GFX overclock is and that even a FX55 @ 3.7Ghz is limiting the bechmark scores....... for now.
It's one good reason not but the highest clocking 7800, better to save a few quid knowing your all gonna suffer the same CPU limits - which can only be a good thing as that means it's likely that you won't need a new VGA card for while yet.
But then again, xmas will see the physics chip released, relieving the CPU bottleneck and then and only then will we see if 32pipes are better than 24 and what the real potential is of these GPU behemoths.
Of course this all come under one of MAV's crazy predictions so take it all with a pinch of salt - the scarey thing will be if I am right