Be wary of brands like Sparkle and Sapphire. They tend to hugely underclock their cards and are also known to remove effects and processes as well at times.
Basically if the price is too good to be true, it is.
__________________________ "Dovie'andi se tovya sagain!" "It's time to roll the dice!"
A good question without a straight answer. The difference lies in the clockspeeds. Some companies will set the clock on their cards a little faster, others slower. But in terms of Card Vs Card with the same exact properties (Clockspeed, etc.) nothing that you will notice.
Lol ^^ Where can I see that quantity of specifications? I dont find any page to see about the relation between GFX and Fans to see how it can be overclocked... I dont want to do a stupidity as well as I did with my GeForce 6200, which I overclocked with Nvidia Overclocking Program....