Ilya your a smart guy, I think your pretty cool but sometimes your so stubborn. :lol Video cards do not hold value, and as singh said clock speeds don’t mean jack diddly. Some cards have lower clock speeds but are faster.
For almost the same price that your selling your card for someone can find a lower end 200 series card thats better than the 8800.
Go look on ebay, other than the occasional person trying to get almost 200 bucks for an 8800 most of them are acctualy selling for ~50 bucks…
new or not that card holds no value… Use it as a paperweight, chances are you will not sell it for more than 50 bucks.
In as little as 6 months cards drop in price by about 50%… Because their changing every few months now with the new tech advances… Why do you think I suggested you wait to get a new card as DX11 cards are comming out in about a month or so… When that happens your brand new 285 will be worth half of what you paid for it because no one wants it anymore, in a years time itll be worth about 100 bucks…