Both are a complete waste of money.
Lag & latency problems in Ah2 are possible for two different reasons:
- Something's happening with you signals on the way to HTC. A conection issue. Those cards can't help you.
- Your own computer has some issues. A bad setup, too many processes, running out of resources, you name it. Most of that problems can be fixed quite easily without throwing you dollars out of the window for some phoney geek stuff. Thinks that can't be fixed with some more ram or tapering with software setting can't be helped by this stuff either.
If you really have lag or other problems (warping, freezing), describe the exact nature of the problem and attach a dxdiag output, then post it in "technical help" forum.
If you don't have any problems like that at all, those cards won't improve your AH2 gaming experience either. Even if they actually can reduce your latency by a few ms, you wouldn't even notice in this game.