Pop quiz!

What's more important in a graphics card, memory size or clock speed?

EDITED TO ADD: General consensus seems to confirm what we all suspected, size is more important than speed. I will therefore place an order for card A (henceforth to be known as the Patrick Junior).

Oh, while I'm here

Yesterday I tried to install my new motherboard.

Why do they tell you not to touch any part of the board, and then give you these little tiny screws that have to go right into the board next to sensitive components that your fat fingers can't help but brush against? And then you drop the screws and have to fumble around in the dark, whacking yet more sensitive components with the screwdriver in your other hand?

This is exactly why I knew I'd be better off buying a pre-built machine.