First post, so hi all 
Was looking on some advice. Im a little bit rusty as its been a while since I built my last PC, and not really up with the times
My currently spec :
i7 920 @ 3.8 GHz
Gigabyte X58A UD3R motherboard
Corsair H80 cooler
12gb DDR3
Nvidia 690 GTX 4GB
Samsung 830 256gb SSD
2x 300gb Velcoiraptors Raid0
Tagan 1300w Modular PSU
Dell Ultrasharp 2711
It plays most things maxed out at 2560x1440, but struggles with Titanfall with Insane textures, I sometimes get some spikes in BF4
Been looking at new CPU, mobo and ram combinations, but Im thinking the gains wont be massive.
So was going to sell the 690 and opt for the R9 295x2, as I think the only think i'm struggling with is the amount of ram on the 690 as its only 2gb DDR5 per gpu, and will only get worse when Im up at 4k resolutions
Am I correct, or do I need to re think my whole setup
Any help would great

Was looking on some advice. Im a little bit rusty as its been a while since I built my last PC, and not really up with the times
My currently spec :
i7 920 @ 3.8 GHz
Gigabyte X58A UD3R motherboard
Corsair H80 cooler
12gb DDR3
Nvidia 690 GTX 4GB
Samsung 830 256gb SSD
2x 300gb Velcoiraptors Raid0
Tagan 1300w Modular PSU
Dell Ultrasharp 2711
It plays most things maxed out at 2560x1440, but struggles with Titanfall with Insane textures, I sometimes get some spikes in BF4
Been looking at new CPU, mobo and ram combinations, but Im thinking the gains wont be massive.
So was going to sell the 690 and opt for the R9 295x2, as I think the only think i'm struggling with is the amount of ram on the 690 as its only 2gb DDR5 per gpu, and will only get worse when Im up at 4k resolutions
Am I correct, or do I need to re think my whole setup
Any help would great