Etheriums PoW algorithm isn't ASIC resistant, just largely unimplemented. Indeed a large reason NIST made Keccak SHA3 is that ASIC/FPGA acceleration is on par or even faster than SHA256 acceleration.

It may take a bit more ram and need a decent bus as a result which is why people mine on GPUs that have both. Rather than cheap ASICS that are cheap because they have neither. "Resistant" ain't the word to use.