Graphics card to replace HD5770 in Mac 2,8 GHz

[bigbone]

Hello, has anybody a good hint for a reasonably priced (200$ max.) replacement for the original HD5770 graphics card in my Mac 2.8 GHz Quad-Core Intel Xeon?

Thanks!

 

[chromic]

7870 would be a good gpu in that price point.

 

[bigbone]

7870 would be a good gpu in that price point.

Thank you, I'll have a look at it!