Also there was the Cell processor used in the PlayStation 3. It was a kind of small CPU cluster on a chip, very different architecturally from GPUs. Cell was o

Also there was the Cell processor used in the PlayStation 3. It was a kind of small CPU cluster on a chip, very different architecturally from GPUs. Cell was originally supposed to act as both the CPU and GPU on the PS3, but that plan didn’t pan out in the actual hardware and Sony scrambled to include an Nvidia GPU.