So my friend has a graphics card laying around and he told me it was 1Gb GDDR5 256 Bit and then i looked online for Graphics cards. He wants to give me his and I was curious about the difference in having a 1 GB 256 bit Graphics card and a 2 GB 128 bit graphics card. Also, how does a 1 GB 256 bit Graphics Card compare to the graphics in the a10-6800k APU? Thanks in advance.