The article which is simplified chinese gives you some serious hint on how to mod your 6200 card to a 6600 card at the very least and to a 6600GT with some luck. Now if that is possible on those dirt cheap 6200TC, it would be a very good deal indeed.
Ako modifikovat 6200->6600/gt

pozrite si link
http://www.gzeasy.com/nparticle.asp?...Force+6200+AGP