How to top my current GPU

[misterawsome]

so for christmas last year i got an HP H8-1128 my first real "gaming" computer.( As a side note my dad is a HP fanboy and wouldn't let me build my computer, so don't hate on it)
http://reviews.shopping.hp.com/8843/QU162AA_BVEP_ABA/hp-pavilion-hpe-h8-1128-desktop-pc-reviews/reviews.htm
currently it has 1GB ATI Radeon HD 6570 graphics card in it, and its been having trouble with more graphics intensive games and can't run them at medium-high+(ie. Plantside 2, Portal 2, Batman Arkham City).So the question is; is there a reasonably priced card (>$200) that would show good improvement on my current card? Would crossfiring be a better option? I don't have a preference of amd vs nvidia. Any opinions would be greatly appreciated.

 

[tiny voices]

You will also need a new PSU most likely. Look at the hd7850 and a 500w PSu from Antec, XFX, Corsair, Seasonic.

 

[Azn Cracker]

Crossfire would be a bad option. You would need a better power supply and wouldn't give you much of a boost.

You can get a 7750 if you don't want to upgrade the power supply (maybe).

But anything better, you would need to get a new one. Try a 7850 like tiny voices suggested.

 

[Cons29]

6570 is a bit low on the gaming side, even when it was new. challenge your dad, ask for the money that you would use to get an HP and build it yourself. then compare

the next time you will get a new one of course

 

[manofchalk]

You will likely need a new PSU to go with the graphics card, prebuilts have weak PSU o0n meant to cover what is in the rig, which is a GPU with no power connectors required.

So for a $200 graphics upgrade, best bet (IMO) would be this.
XFX Core 550, 80+ Bronze. $70 ($15 rebate)
http://www.newegg.com/Product/Product.aspx?Item=N82E16817207013&Tpk=XFX%20550W
Sapphire Vapor-X HD7770. $135 ($15 rebate)
http://www.newegg.com/Product/Product.aspx?Item=N82E16814102993

Which will leave you room to upgrade your graphics again later on.