That simply isn't true. I have an RTX 4070 gaming PC and an M4 MacBook Pro w/ 36GB shared memory. When models fit in VRAM, the RTX 4070 still runs much faster. Maybe the next generation M5 chips are faster but they can't be 2-4x faster.
GP said laptop 4070. The laptop variants are typically much slower than the desktop variants of the same name.
It's not just power budget, the desktop part has more of everything, and in this case the 4070 mobile vs desktop turns out to be a 30-40% difference[1] in games.
Now I don't have a mac so if you meant "2-5x" when you said "much faster" well thdn yea, that 40% difference isn't enough to overcome that.
