About as different as the standard CPU/GPU combo is from Cell. This is literally a CPU, with a GPU, with a cache coherent memory bus. The Cell on the other ha

About as different as the standard CPU/GPU combo is from Cell. This is literally a CPU, with a GPU, with a cache coherent memory bus. The Cell on the other hand is a PowerPC unit, mated with a few Vector FPU units, with no direct memory access. Then a seperate MMU is setup that's able to handle DMA copy's for everything.