Trying to plan for future gaming. Everything has been just fine since I upgraded 2 years ago. Are there significant increase in performance CPU's I can use? Obviously going to need more cooling too. 

Windows 10 version 1803

I7 2600 3.4ghz

GPU NVIDIA EVGA GTX970 ssc acx 2.0 fall out 4 version

Psu corsair cx750m 750 watts

Headset hyper Cloud 2

2.1 sound altec landing 

Memory 2x8gb corsair vengeance 2x2gb original sticks in other channel 20gb total

Monitor Lg 29" 29Um58 2k

Hdd 10000 rpm wd velociraptor main

Hdd wd 1.5 TB external

Hdd wd 5400rpm 500 GB internal

Corsair K55 keyboard

Mouse Razer deathadder elite

Replaced modem dynex pci Express GB ethernet

Original mobo