Spying with James Bond in 007 First Light could challenge lower-end machines. Newly released recommended system requirements list a high amount of RAM for 1080p/60fps gameplay. A memory shortage resulting in higher costs have made upgrading PC specs a frightening prospect.
18-30 GB is completely valid… If you have 4 sockets in your computer, nothing is stopping you from adding 2x4 GB sticks and 2x8 GB sticks for a total of 24 GB. And you can even still run at full dual channel speeds…
It’s not that common, as most people don’t mix the sizes of the sticks… But as long as each dual channel pair is of the same size, and the slowest stick timing is good enough, there’s no trouble.