x86 instruction set. GPUs are a pain to program and port applications to. If I recall correctly, this is somewhat of a spinoff of the larrabee chip - http://e

x86 instruction set. GPUs are a pain to program and port applications to. If I recall correctly, this is somewhat of a spinoff of the larrabee chip - http://en.wikipedia.org/wiki/Larrabee_(microarchitecture) http://en.wikipedia.org/wiki/Larrabee_(microarchitecture) You can see in the wikipedia page the benefits of Larrabee over traditional GPUs. I believe the new chip was designed to be even more flexible and similar to modern processors.