Over the 3200?! Ah, haha. Generally I don't recommend the 820, or any D other than the 840. But against a 3200? 820 all the way. Crank up the Speed to 3.0, 3.2, 3.4 if you're feeling lucky, and you'll have all the power you'll need. In games, and in what a Computer should do. Over a 3200... haha.
Intel all the way there!
A Knight is sworn to Honour. His heart knows only Virtue. His blade defends the helpless. His might upholds the Weak. His word speaks only truth. His wrath undoes the Wicked.