Install Steam
login
|
language
简体中文 (Simplified Chinese)
繁體中文 (Traditional Chinese)
日本語 (Japanese)
한국어 (Korean)
ไทย (Thai)
Български (Bulgarian)
Čeština (Czech)
Dansk (Danish)
Deutsch (German)
Español - España (Spanish - Spain)
Español - Latinoamérica (Spanish - Latin America)
Ελληνικά (Greek)
Français (French)
Italiano (Italian)
Bahasa Indonesia (Indonesian)
Magyar (Hungarian)
Nederlands (Dutch)
Norsk (Norwegian)
Polski (Polish)
Português (Portuguese - Portugal)
Português - Brasil (Portuguese - Brazil)
Română (Romanian)
Русский (Russian)
Suomi (Finnish)
Svenska (Swedish)
Türkçe (Turkish)
Tiếng Việt (Vietnamese)
Українська (Ukrainian)
Report a translation problem
https://gpu.userbenchmark.com/Compare/AMD-HD-7870-vs-AMD-HD-6850/2161vsm7743
So? You got lucky with the 710, it supported a wider range of features than the 6850 does. You had no guarantee that either would work, because neither is a supported video card.
All you managed to do is prove the 710 is more compatible with games than a 6850. But since neither is good enough to be officially supported, they aren't going to test low end cards that they don't support just to see which ones can barely play the game and which ones don't.
The minimum requirements are the specs that a company is willing to test and maintain support for, using something below that and you are on your own, willingly choosing to use the incorrect hardware. If you get lucky and it works, there's still no guarantee it will work well. I doubt you had good performance with the 710 even if it was barely functional it's less than what they expect you to be using.
Seriously, a GTX 750 or Radeon HD 7870 are the minimums they are willing to maintain support for with a recommended of GTX 960 or Radeon R8 380.
You might as well be asking why a GeForce 8800 GTX doesn't work (because they are both over 10 years old and don't even support the last dx 11 version)
AMD 6850 is a step down from a gtx 710 in terms of dx support by several years.