The very good thing is that the GPU performance improved by a very good amount (and power efficiency), but the ugly thing are the 47 ms and 49.4 ms pixel response times. 47 ms means 1/0.047s = 21 Hz and 1/0.0494s = 20 Hz, which are extremely bad elephant in the room values. If you are a gamer or play any video games that require more than 20 FPS: Stay away!
I see, so a MacBook Pro is using a non-Pro M chip (128-bit memory bus width, 153.6 GB/s). Always thought a MacBook Pro would the use faster M Pro chip (256-bit), and the MacBook Air and iPad would use the normal, 128-bit, M chip.
According to en.wikipedia.org/wiki/MacBook_Pro_(Apple_silicon) (strg+f for "Chip name"), this started since the M3. Pretty crazy and unfortunate that you can get the much slower non-Pro M chip in a MacBook Pro, depending on the unified memory size configuration. Kinda scammy.