You could argue that, but you will look very foolish as Mario Kart 8 on the Switch runs 720p maximum docked
See digital foundry for details
At the moment the PS3 does have the better looking games, though thats due in large part to the switch only being out just over 2 years, at the end of its life will the Switch have anything that can match last of us? debatable we will have to see in a few years time.
Tthe switchs GPU is better but the CPU is worse, it also has on 4GB memory vs 8GB. Will a full GTA5 come out on switch to match PS3, debatable without compromises due to its weaker CPU & less memory
Others have beaten me to it, but:
(a) MK8 on Switch is 1080p docked, not 720p. https://www.eurogamer.net/articles/digitalfoundry-2017-mario-kart-8-deluxe-tech-analysis
(b) PS3 has 512MB of RAM, not 8GB. And some of that is reserved for the OS, so in total PS3 has less than 1/6th as much RAM available for running games as the Switch.
Bet with Liquidlaser: I say PS5 and Xbox Series will sell more than 56 million combined by the end of 2023.