yes playable on native resolution
but you cannot turn on some settings like vsync and hdr/bloom
specially physx... my 8800gt stumbled at 3-7fps at moderate settings (1080p) after i updated arkham asylum to ver1.21 just to see this sucks!! the recommend a 9800gtx dedicated physx cards!!
and not to mention too high aa settings will ruin the day
ps. my advice as a fellow 8800gt owner... play this season over (im playing on x360) and prepare to buy a new radeon over next summer
According to the review at http://www.xbitlabs.com/articles/cases/display/chieftec... , your PSU is nothing special, but perhaps because it is Delta-built, is a step or two above a Chokemax. I wouldn't run it flat out though, or install one in a gamer. I don't think you need to rush out in a panic, but when practical, if I were you I would replace it.