I have had both laptops. I first had the MSI GE75 and then returned it for the ASUS. I am surprised by the temps you show on the MSI, as my MSI ran hotter than hell, and oh yeah I actually have had TWO GE75 raiders. My first one was super underwhelming benchmark wise, so I exchanged it for another and saw better performance.

I ran both the ASUS and the MSI dual channel 32GB. The MSI had better GPU performance, but GOOD LORD did the CPU run hot. CPU temps, even after repaste, were consistently in the 90s. After repaste, my GL704 has stayed in the 80s for the CPU, and low 70s for the GPU, and thats with a 155mhz OC using afterburner (I prefer afterburner over the ASUS equivalent). The MSI ran me 2k, as it was on sale from its normal 2299 price tag, while my ASUS ran me 1799, on sale from its 1999 price tag. The screen on the MSI had less IPS glow, but both displays are awesome.

I would recommend either, with my preference being the ASUS. The per-key RGB of the MSI vs the zone lighting of the ASUS is missed, but the overall build quality of the ASUS is heads and tails better than the Raider. The MSI lid had waaaay too much flex when pressing on the back, which was one of my main reasons for exchanging.

Both are single channel.

its not a fair comparison, the CPU is bottle necked by single channel RAM on the MSI, its not thermal throttling at all (funny you even mentioned MSI is noticeably cooler), MSI chasis and board design of Raider is the best among midrange gaming laptops

How come the cpu of the msi75 throttles more  than the asus gl704 when the msi75 has cooler temp than the asus?

Single channel memory will limit the performance of the GE75. Not a fair comparison.