In case anyone else wanted to check, PS5 has[1]:

> Memory: 16 GB GDDR6 SDRAM

So unless the RAM price jumps to 4x the price of a PS5, getting a PS5 is not the most cost efficient way to get to 64 GB of RAM.

In comparison, PS3 has been used to build cheap clusters[2].

[1]: https://en.wikipedia.org/wiki/PlayStation_5

[2]: https://en.wikipedia.org/wiki/PlayStation_3_cluster