I must have been lucky to be able to play HD video on a old computer? I got hold of a high performance vintage computer from 2010 Dell T3500 with 24GB of ram that i am very pleased with, when you don't play games it is nearly impossible to use all. A regular phone uses between 2 or 3gb. With a GDDR3 Nvidia Quadro Fx 5300 graphic card on 256mb that costed 1600dollars back in 2006. GDDR3 plays video in a better smoth way and uses less power. A standard 1080p video when playing in Vlc only use 4-7% of the cpu. And the highest video avaible in 120fps only uses 10% of the cpu. 8k is the same. And the the graphic card is from 2006. It has a Intel® Xeon® Processor E5645. 12M Cache, 2.40 GHz, 5.86 GT/s Intel® QPI. It must be a special computer. Were to find 120fps videos or in 8k? I tried in Youtube but aren't sure they are real 120fps or 8k. I am surprised this old computer can handle this with only 10% cpu usage.