They are not totally slipping, but they are slipping in the high end desktop realm. They have not been able to compete with Intel, in terms of high end desktop

They are not totally slipping, but they are slipping in the high end desktop realm. They have not been able to compete with Intel, in terms of high end desktop performance, since the Core 2 arrived. Their first quad core was a train wreck... and the much anticipated (by me at least) Bulldozer seems to be at the level of Intel's year old Sandy Bridge.