The key would be if the motherboard had a PCI-E slot available for the 6450. The CPU can play a part but I think it's mostly the video card. If the video card has hardware acceleration, then the CPU doesnt really have much effect. Note the weak atom N270 coupled with nvidia ION played video pretty well.
Thanks a lot. I don't think the motherboard even has PCI-E i will have to check it out.