Will my computer fit a Radeon HD 6850 card?

The saphire card, more than likely yes, the gigabyte card? cant say, but the gigabyte card is better imo, better cooler, 2oz pcb, better warranty.

Get a ruler and do some measuring, I think the gigabyte card is 9-9.5 inches long, say 10 to be safe.

I have a mid tower and the saphire 6850 fits well. Great performance too btw

I just measured inside and I've got just barely enough room for the gigabyte, so I'm leaning towards the sapphire just to be on the safe side. Is the performance of the sapphire considerably worse than the gigabyte or anything?