on the lower end iGPUs per Intel CPU series (yes, Sandy Bridge* has a variety of different iGPUs, as does Ivy, etc.). Video performance depends very much on the screen resolution and player size, as well as the CPU/GPU and source resolution 1080 (Full HD) played back at full screen will produce more dropouts/skipped frames than the same video on a 720 (HD ‘Ready’) full screen or a video scaled down to 720 on a 1080 screen, esp.