Going back to the OP.
I walked past a CEX shop in town the other weekend, they had a HD6870 in the window with 1GB DDR5.
I decided to buy it and see out of interest what a £25 6 year old GPU gets you.
I plugged it together with only 4gb ddr2 800, and a spare xeon x5460 I had. Put it into one of my 1080 screens and loaded up overwatch to have a game:
https://www.youtube.com/watch?v=BasjwmOyNso
It ran at high 50's during quiet times and 40+ during busy times. Perfectly smooth enough to play.
And I know people that have said their I5 and 960 can't run it on ultra without judder lol. Note the recording was only done at 30 FPS
And here it was on a 1680x1050, still looked nice and never dropped below 59FPS![]()
https://www.youtube.com/watch?v=409P7Yb2RUw
Overwatch is a Blizzard game. Blizzard release games that run on 10 year old toasters, it's part of their immense success throughout the years.
Their game engines scale extremely well, something that cannot be said for the majority of game developers out there, even AAA ones.