Guys, I need your advise on the above ASAP. I'm going to buy 8800GT, so is there any practical sense to go as high as 1024MB vs 512MB DDR3 for FSX @ the same speeds?Many thanks.

helloi have the 1024 version but i think for fsx 512 is enough because the 256bit you dont get benefit from the more ram

Thanks, I hope there's no adverse side affect.