First please mention your current config. For an increase of ~10fps, it does not make sense to suggest a new config, IMO.
Well, would suggest to go with the G620 + H61 combo in that case.
The G620 will be too anaemic to perform effectively at such a low resolution, where games are more CPU dependent, OP if possible please get the following --
Intel Core i3 2100 ~6200/- OR Intel Pentium G620 ~3500/- [if the budget really pinches your options]
ASUS P8H61M-PLUS ~3500/- OR Intel DH61 WW ~3200/-
G.Skill RIPJAWS 4GB x1 ~1600/-
#[member='ALPHA17'] Even with a dedicated GPU? Hmm, did not think of that.
If you live in delhi you can get a i3 550 + intel mobo combo for about 7k at nehru place ,
It is better than Pentium G620 which was suggested here
Even i3 540 beats it http://www.anandtech...duct/143?vs=406