So I have recently done some testing on 2 different systems, I'll post my findings after I post both system specs.
System 1:
OS: Windows 8.1 Pro x64
CPU: AMD FX8320 4.8ghz
RAM: 16GB Corsair vengeance 1600mhz
MOBO: ASRock 990FX Fatality Pro
VIDEO: 2x GTX 780ti's PCI-E 2.0 @x16/x16
PSU: EVGA SuperNova G2 1300watt
System 2:
OS: Windows 8.1 Pro x64
CPU: Intel Core i7 3770s 3.1 base 4.1ghz turbo
RAM: 16GB Corsair vengeance 1600mhz (same ram from system 1)
MOBO: Asus P8Z77-V
VIDEO: 2x GTX 780ti's PCI-E 3.0 @x8/x8
PSU: EVGA SuperNova G2 1300watt
Benchmarks at 1080p on the same 144hz monitor with fraps:
System 1:
Battlefield 4: Min 118/ Avg 158/ Max 200
DayZ: Min 28/ Avg 44/ Max 130
ArmA 3: Min 42/ Avg 63/ Max 112
GTA 5: Min 58/ Avg 77/ Max 121 (had to lower advanced settings and MSAA due to vram)
System 2 (same in game settings)
Battlefield 4: Min 111/ Avg 149/ Max 186
DayZ: Min 32/ Avg 51/ Max 128
ArmA 3: Min 53/ Avg 77/ Max 119
GTA 5: Min 43/ Avg 59/ Max 115 (had to lower advanced settings and MSAA due to vram)
Both system each game settings are the same, same view distance of 1600m in both arma and dayz.
I was wanting to switch to the Intel system as well Intel is more superior from what 80% of the web says, specially with higher end GPU's, well from the 4 games I have tested, Well Intel wins in Bohemia games, but anything else multithreded the 3770s didn't win as all, it was close, but being the 3770s max obtainable OC was 4.1ghz turbo It wasn't really worth swapping my AMD build to THAT i7.
I would have tested more games and bench marks such at 3d mark, but my brother was wanting the system to get done so I cut my testing short, I will test more later when I get a chance. If I had the i7 3770k I would have swapped over.
But as you can see in my testing GTA didn't do well on the i7, but the i7 system was much more smoother when the game was alt+tabbed vs the AMD system, not sure why.