One of the defining features of the PlayStation 5 and one that Mark Cerny stressed a lot upon is the console's storage. Sony's custom flash controller has performance equivalent to nine Zen 2 cores and can deliver up to 5.5 GB/s of raw and up to 9 GB/s of compressed throughput. The PlayStation 5 will also be compatible with both USB and NVMe external storage solutions, but Sony prefers waiting it out before existing NVMe M.2 drives can be validated for the console.
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