Question Lowest Level GPU Recommended for current Games?

[Gamefreaknet]

Hi. I know that old "parts" in general can be had for very low prices such as Nvidia GTX 600, 700, and 800 cards for around lows of even £30 and old CPUs with prices all over the place (avg £50...) however those builds still can game to a certain extent even if those settings are low - medium settings. I understand that for 1080p gaming you want around 3GB vram at least however what is the lowest card that you can depend on?

Custom example Build here:
i7 4790s - link - £41
Intel E97379-001 CPU Cooler - link - £10.47
Gigabyte GA-H97N-WIFI Mini ITX LGA1150 Motherboard - link - £83 (not converted from dollars)
Corsair Vengeance 16 GB (2 x 8 GB) DDR3-1600 CL9 Memory - link - £79.99
Patriot P210 512 GB 2.5" Solid State Drive - link - £25.99
NVIDIA GeForce GT 640 3GB - link - £25
Montech AIR 100 LITE MicroATX Mid Tower Case - link - £36.94
Antec VP PLUS 550 W 80+ Certified ATX Power Supply - link - £48.43
LG 24GQ50F-B 23.8" 1920 x 1080 165 Hz Monitor - link - £118.99

i7 4790s - GT 640 bottleneck comparison: (link here)
[I do understand for around £50/£60 more that a GPU that is more powerful can be had that still won't bottleneck the same CPU]

 

[Lutfij]

The lowest card I'd look into would be a GTX750Ti but your platform should be good to go with a GTX1050Ti. If you do decide to get a GTX1060, don't look at anything below 6GB.

Antec VP PLUS 550 W 80+ Certified ATX Power Supply
How old is this PSU?

 

[JohnBonhamsGhost]

the very lowest i would bother with for a wide range of current games at 1080p with decent in-game settings would be the GTX 1080.

using a 4790s though, i would give up the idea of decent performance.