What is better to buy for gamins computer

[pcsluzba]

Configuration so far just for illustration:
CPU - AMD Phenom II X3 720 Black Edition (2,8 GHz)
MB - Asus M4A785TD-V EVO
RAM - A-DATA 2x2GiB DDR3 1333 MHz CL7 Vitesta
HDD - Seagate 1TB 7200.12 (ST31000528NS)
PSU - Corsair HX450 (450W)
Case - CoolerMaster Elite 334

Issue is gfx card:
MSI HD5770 1GiB GDDR5
or
Gigabyte GV R489OC 1GD 1GB PCX

Which one is worth it to buy today? 4890 costs by aproximately 10€ more.

 

[Trotter]

Both are awesome cards. The biggest difference is that the 5770 is a DX11 card, whereas the 4890 is a DX10 card. The power usage of the two will also be rather different as the 4890 will draw more juice and generate more heat. The 4890 will outperform the 5770, however.

 

[Whirlwind]

Most would probly take 5770....I personally would take 4890

 

[pcsluzba]

Does DX11 worth it or DX10 with biger performacne card?