When it comes to configuring your NVMe drive, you have two options: Master Boot Record (MBR) or GUID Partition Table (GPT). While MBR is the traditional option, GPT is the more modern choice. So, which one should you choose?The answer depends on the capacity of your SSD and the compatibility of your operating system. You can't boot from NVMe in Legacy mode, so GPT is the only option (since MBR is not compatible with EFI booting).
As we have established, GPT is the winner. If you're not sure which one you want, choose GPT for your SSD. For example, if you have a Gigabyte Aorus Master X570, and your main boot drive is a 970 EVO+ M with two 500 GB drives, and you just bought a secondary version of 1 TB for storage, then GPT is the most logical choice depending on compatibility. In conclusion, when it comes to MBR or GPT for SSDs, GPT is the most logical choice depending on compatibility. So if you're unsure which one to select, go with GPT.