Which pc is better in gaming?

[SohaibBM]

1. Core i5 with 7770
2. Core i3 with gtx 560ti.

[debs3759]

The specs show that the 560 Ti is the more powerful GPU. Most modern games will use the GPU extensively, so the i3 + 560 Ti would make sense. Of course, if you can get an i5 plus 560 Ti you will be onto a winner.

This reply assumes that the i3 and i5 you are considering are of the same generation.

[Marcin]

GTX is slightly better than HD7770 but in some tests ATI win. I would vote for i5 and 7770 because in games where are used more than 2 cores i5 will squeeze more FPS from 7770 than i3 from GTX560Ti.

Advantage from choosing ATI :
1) more than 50% less power consumption
2) ad. 1) much less heat = long life. From my experience (not only mine) ATI cards runs much longer without defects.

[SohaibBM]

Will the asrock b75m support all the above cpus and gpus.

[Marcin]

http://www.asrock.com/mb/cpu.asp?Model=B75M

Try to buy Ivy Bridge - latest models.
All VGA will be supported.