Historically typical GPU power draw has exceeded CPU draw for a really long time. In terms of peak compute throughput the GPU usually has an advantage in any gaming-focused machine, and even general productivity ones. A developer workstation with a Threadripper probably evens things out more.
A GPU these days can often do general purpose compute, but not in a way that meaningfully allows it to compete with the OS for heavily branched or random access workloads since its memory controller and execution model are a poor fit. I'm not sure we'd ever see GPUs fully displace CPUs for that reason.
A GPU these days can often do general purpose compute, but not in a way that meaningfully allows it to compete with the OS for heavily branched or random access workloads since its memory controller and execution model are a poor fit. I'm not sure we'd ever see GPUs fully displace CPUs for that reason.