I saw a video of MSI HD6850 GPU, currently I'm thinking of buying a gigabyte HD6850 but the MSI 6850 has default Over clocking and I hear it lasts longer, etc. Also I hear you need a compatible MoBo. My current MoBo is an ASRock Z68 Extreme3 Gen3 LGA 1155 Intel Z68 HDMI SATA 6Gb/s USB 3.0 ATX Intel Motherboard, So I'm just wondering if it's compatible and if it's not is it worth changing MoBo's? and if It is! can you recommend me a new MoBo that's similar except it supports MSI?