Memory
Sixteen gibibytes at 448 GB/s, shared by the processor and the graphics engine. Twice the PlayStation 4's capacity, at two and a half times its bandwidth.
provisional A figure marked provisional is recorded but not accepted: its evidence is unsettled. It may rely on one source, an unconfirmed announcement, or a digit read from a damaged scan. The reason appears under the figure. The catalog shows the figure but never uses it in a multiplier. How records are judged.
| Metric | Value | Evidence | Basis | Method | Source |
|---|---|---|---|---|---|
| Memory bandwidth memory provisional | 448 GB/s | Confirmed | Vendor-rated | Theoretical peak Stated by the vendor, before the hardware shipped Bandwidth of the unified GDDR6 memory, per Sony's specification table of March 2020. A bus maximum, comparable with every other theoretical bandwidth in the catalog and with none of the benchmarked ones. Stated eight months before the console shipped, in a table that has been revised since. | |
| Memory capacity whole-system provisional | 16 GiB | Confirmed | Vendor-rated | Design capacity Stated by the vendor, before the hardware shipped Unified system memory, shared by the processor cores and the graphics engine. Sony writes "GDDR6 16GB", meaning 16 GiB. Recorded at whole-system scope rather than memory scope because it is the machine's memory: like the PlayStation 4 and unlike the three consoles before it, there is no second pool this figure excludes. |
448 000 000 000 B/s
a + b + … sum v1 Adds 1 memory-bandwidth figure obtained by theoretical-peak. Nothing in the catalog is left out of it. A total is only as trustworthy as the decision about what belongs in it, so both the terms and the exclusions are named records.
Sony's word for it is "System Memory", one pool for the whole machine, so the console's whole-system capacity is this figure and excludes nothing. That is now the norm for a PlayStation: the first four consoles all kept two pools that could not be spent on each other's work.