yea in win xp you can see the different,and i may say ati IQ is nicer,but in vista hmmm both also the same quality but nvidia is faster....(comparing 3870 n 88gt)...anyway what the point of having great image quality if the frame is low??coz i try both 3870 n 88gt...but now end up using 88gts 512 coz its highly oc capability...  

can oc but headroom a bit only...duh ....dont be sarcastic la,i own both before then i trade in,so i believe i know what im talking about hmmm??i even run it at cf just play around and came up to conclusion dont ever get x38 gigabyte ds5 to do cf...it will ruin your games,flickering everywhere.....
but on asus x38 mobo doesnt seem to be a problem...so maybe it a driver problem...

im not a fan boy of any brand,i just buy what the best can suit me,no need to be a fan boy and justify good product/bad product,the best things is try it yourself and experiance it...trade it with your friend or forum if itchy to try others....  

so far as i said it before,nvidia is faster,both card doesnt show any different IQ on vista but on the xp it totally diferent story..IQ wins on 3870...exspecially if you use modified driver like tweakforce driver,it look so much better,but then the draw back is a little bit slower if compare to 88gt even oc also wont be that good...that why i trade it out and get this 88gts,and of course i will buy this card R680 and try it out to check it for myself...frankly telling you that review always have it doubt,the best things is experiance it yourself...