When queried by a game, Intel GMA using dynamic VRAM will report the maximum it is allowed to use. Most games will detect your lack of GPU performance and adjust down, down, doooooown accordingly.

My Lenovo T400 has a C2D P8600 (2.4 GHz) and Intel integrated graphics, and it has no problem with any videos I've thrown at it, even without using decode acceleration.

Adobe has just pushed out the 4th release candidate for Adobe Flash Player 10.1. The new version is supposed to enable 1080p HD Flash video playback on computers with Intel GMA 4500MHD graphics ...