i have amd x2 5000+ cpu and 4gb 800mhz ram
and i want to upgrade my graphic card
so how many fps will i get with the hd7770 in games such as far cry 3 or bf4 with hd resolution and medium to high graphics quality
and how many fps will i get with r7 260x with same specs and graphic quality ?
Not very many. The x2 5000+ is bottlenecking 7770 and upgrading gpu makes no sense the bottlenecking won't allow for better preformance. You cpu/ram need upgrades before trying to run bf4 and far cry in medium settings.