Hello there, I'm building ADP (allround desktop pc); motherboard Gigabyte GA-MA790XT-UD4P, processor AMD Phenom II X3 720 Black Edition, memory OCZ Platinum XTC 2 x 2GB DDR3 1333MHz CL7 kit, harddisk 2x Seagate 7200.12 500GB 16MB but what videocard around 150 Euros. The ATI Radeon HD 4850 512MB or the ASUS Radeon 4870 HTDI Matrix 512MB? Both cards are powerful and suitable for office as well as high quality games. Who can make the choice for me?