As our customers know, Parallels cares deeply about the quality of our software products and the experience they provide. We provide full support of Mac computers with Apple M1 Ultra chip. However, if you find a new issue with Parallels Desktop that can be reproduced on a Mac with an Apple M1 Ultra chip, kindly let us know on the Forum.
Parallels Desktop 18.1.0 and newer supports assigning up to 128 GB of RAM and 18 CPUs to a virtual machine on Mac computers with Apple M-series chips on macOS Ventura 13.
Parallels Desktop 17 supports assigning up to 32GB of RAM and 8 CPUs to a virtual machine on Mac computers with Apple M-series chips.