I'm currently looking at this:
Gigabyte GeForce GTX 1070 G1
Powered by NVIDIA GeForce GTX 1070
Integrated with 8GB GDDR5 Memory 256-bit Memory interface
Core Clock: OC mode boost Clock 1822 MHz, gaming mode boost Clock 1784 MHz
Max digital resolution - 7680x4320@60hz
Display connectors – DP1.4 x 3, HDMI 2.0b, dl-dvi-d
I also play IL2 Cliffs of Dover Team Fusion Mod, the Red Orchestra Series, some Rise of Flight, and I'm looking at Arma as well.
Edit: Here is the monitor I use as well, does it need upgrading as well? I told you guys I was kinda clueless to this stuff

Acer AL2016W Bb Black 20" 5ms Widescreen LCD Monitor 300 cd/m2 800:1
Screen size: 20"
Widescreen: Yes
Maximum Resolution:1680 x 1050
Recommended Resolution: 1680 x 1050
Viewing Angle: 160° (H) / 160° (V)
Pixel Pitch: 0.258mm
Display Colors: 16.2 Million
Brightness: 300 cd/m2
Contrast Ratio: 800:1
Response Time: 5ms
Display Type: WSXGA+
Connectivity
Input Video Compatibility
Analog RGB
Connectors
D-Sub
D-Sub
1
DVI
No
HDMI
No
Power Supply
100V-240V
Power Consumption
OFF: <1W
Stand By: <2W
ON: 50W