I don't know if it's an hardware issue, but my laptop seems to have difficulties running 1080p 60fps video on YouTube It usually never has an issue running regular 30fps video, but the moment I attempt to play 60fps I get severe lag. I've tried disabling hardware acceleration on both chrome and Firefox, but it doesn't resolve the problem at all. I have a 3 year old Toshiba laptop that is a satellite c675d model with a AMD E-300 apu radeon (tm) HD graphics 1.30 GHZ graphics card and 4 gb of ram.