I will be using an AMD A10-6800k with a biostar motherboard. I will try to run Linux on the machine as well. Will this GPU work? Will it bog down the on board graphics that come with the APU? And I can't seem to find how big this GPU is. I think it is a 512 mb right? It was given to me for free and I was wondering it would be an "upgrade" compared to not having one.