Time to upgrade my OC'rs system?

[Whitefox24]

I bought a lovely system from OC nearly 2 years ago now. But Im noticing it not perform as well as id like. My big thing is modding skyrim and I recently followed this guide:

http://wiki.step-project.com/User:Neovalen/Skyrim_Revisited_-_Legendary_Edition

With some added extras and was surprised at badly my pc performed, I even reduced textures, enb to performance etc and it still ran horribly. I know modding is so haphazard so I guess a sensible question would be is it time to upgrade and what to upgrade for new games coming like Fallout 4?

I guess my Graphics card is my weakest link here? Thanks for any help

System specs:

Processor
I7 - 4770k 3.50ghz overclocked to 4.3ghz

Graphics card
Gigabyte geforce GTX 770 windforce 3x OC 4gb

Ram
Teamgroup vulcan (16gb 2x 8gb) 2133mhz

Motherboard
Gigabyte G1.sniper z87 intel

Power supply
superfolower golden green HX 750w

Storage
Samsung 120gb ssd 840 evo - main OS win 8.1 installed
Seagate barracuda 1TB - Data and back up
Sandisk 120gb ssd - for games

 

[Whitefox24]

Thanks! yeah waiting for pascal does seem like the safe bet with the expected performance!

 

[Whitefox24]

If I plan on playing games at the max resolution of 1080p the 980ti is overkill right?