Say Red Ring three times before your Kinect. I dare you.
Three core PowerPC at 3.2 GHz. Each core has a L1 instruction cache and a data cache of 32 kb. They share a 1 MB L2 cache.
512 MB GDDR3 shared between the CPU and GPU. The GPU also include 10MB embedded DRAM (EDRAM) to be used as frame and z-buffers.