I’m not saying the M3 has a fundamental advantage. I’m saying that it’s unlikely to be as high a difference as is being stated in real world use. I don’t think a SOC at half the power budget is going to be magically more powerful.
Possibly Battlemage running at 100% will use more power than M3's GPU running at 100%...it will take some detailed testing to track that+ Lunar Lake can be set at different TDP's (plus performance settings, on battery vs connected to power). Not to mention different "100%" GPU workloads.
At the end of the day though, users vastly prefer a more powerful built in GPU for the occasional game session...Intel is willing to pay for the transistors, and Apple reserves them for the M3 Pro instead.
Regarding INT8, the frontend for the neural engine is CoreMLtools and it’s supported INT8 for a while , though their page does say the M4 has new int8-int8 acceleration https://apple.github.io/coremltools/docs-guides/source/opt-o...
And one of the contributors to the repo saying the Neural Engine supports Int8 https://github.com/apple/coremltools/issues/929#issuecomment...