I have been getting sporatic blue screens with my HD 4500 (i think) older model anyway, but much worse than that, the fan has started howling something awful every time I go into full 3D, starting a game etc, it makes no perceptible noise with light activity, browsing, watching movies etc. My attempts to clean it out have all failed.
What's the consensus on the best value if you were buying right now ?. Things like power consumption are a concern. I rarely ever turn my computer off.