I just cobbled up a HTPC for my living room and in the process, trying this video with HDR enable in Windows 10 & Chrome: At 1080p 60 fps and HDR enabled, it caused the GT 1030 usage to spike to 100% on some scenes and stutter. I already installed the latest driver from nVIDIA. No problems on my main PC with a GTX 1080 Ti and seems to play HDR just fine. If I disable HDR in Windows setting, no problem at all. The rest of the specs are: i5 2500 - 8GB RAM - 250GB SSD - PCI-E x4 (x16 physical, x4 electrical). So now my question is: Is it stuttering be cause the GT 1030 is not powerful enough for HDR videos? Or it is because the x4 PCI-E slot is not fast enough? This is a HP 6200 Pro SFF so there's no real x16 PCI-E. Should I upgrade the VGA to something like GTX 1050 Ti Low Profile?