AMD were outselling nvidia until nvidia lowered their prices. As someone already mentioned the GTX 260 outsold the competition because of insane deals at the time, not just because it said nvidia on the box. Also I don't really get where he got his benchmarks from, as I remember the GTX 280 being quite a bit faster than the 4870, with the gtx 260 matching it in most games? Just check out this review from back then, and tell me the GTX 280/260 weren't the better cards, especially after nvidia lowered their prices?
You are quite correct and although my memory is shockingly poor, I did a lot of research after deciding to move away from my GT 8800 and the GTX 260 was indeed faster, or at least in all the games I had seen. The 280 was too much money for my low budget back then but I clearly remember several sites and PC Formatt giving the 260/280 the lead and priced the same.
. Benchmarks are flawed in that they are playing through a sequence and more importantly it does not necessarily prove the smoothness of actual gameplay, ie, we need the the average, peaks and troughs plotted out on a graph - not just a simple average single score. For example, 10 secs of gameplay at 50fps is not the same as 5 seconds at 10fps and 5 seconds a 90fps but the average would be the same. Because benchmarks are sequenced it would be relatively easy for either competitor to tweak their drivers for the benchmarks too. 







