Which PC component is holding my system back? WHAT TO UPGRADE?

[PokemonGoCD]

Hey guys,

First time poster so go easy haha.

Ok, I've had my gaming PC a few years now and my last major upgrade added an SSD, doubled the RAM, added an extra GPU in SLi and a better MoBo + PSU to accomodate. But now I'm after opinions on what would be the best upgrade or parts to swap out to bring it into the next gen of games. ie. What will give me the biggest perfornance boost?

It still handles games well at 1080P (max res I want to go on my TV) with GTA V, BF4 etc all running at a smooth 60 frames.

All help is appreciated. Specs are below:

CPU - i7 3770 3.4GHz
MoBo - Gigabyte GA Z77X D3H
RAM - 8GB (2x4GB) Kingston Hyper X Black CL9
HDD - 120GB SSD / OS, 1TB HDD / Games
GPU - Gigabyte GTX 670 2GB + Zotac GTX 670 2GB in SLi
PSU - 800w Bronze Rating PSU
OS - Win 8.1

Thanks guys!

 

[gussrtk]

Too bad you dont have the K version of the CPU...

anyways.

You would likely Benefit the most from a SINGLE GPU upgrade. GTX1060/1070 would be good

Next would be

2x8GB ram (or add 2x4gb same as you have now, to end with 16gb)
Larger SSD hard drive

Check through your ACCESSIBILITY options, there was an extension on Win10 upgrade through that section of your windows. Should upgrade if still possible.