Nah it's not that I like to argue..it's just that suggesting a card that might not perform as the OP suspects isn't someting I like doing.
And I just looked at those screenies and there were no FPS tags...also HDR is not enabled...and even though HDR is not enabled there is no AA either.
The point I was making before was not that the 320mb card wouldn't be able to play Crysis...it was that to play it smoothly a significant amount of eyecandy might have to be turned down making the game appear much less appealing.
For comparison of how RB6 Vegas performs at 1024x768 with AA or HDR on various cards...see below...and this test setup is a C2D @ 2.9ghz with 2gb ddr2 800: