Is this really manufactured, or is it overclocked? Some friends say it is original, some say it's being overclocked using overdrive. The control centre detects it as a 9600XT, but can't figure out if overdrive is active. So far the thing works fine, and quite impressively too (405MHz/450MHz or something close). Played nfsu2 and far cry for about 2 hours without any problems. So is this thing for real?