Open-world launches this size routinely need well over 100GB once you count the base install plus day-one patches. If your console is already tight on space, the smart move is expanding storage now — before launch-week demand pushes prices up.

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PS5 storage expansion

PS5 uses standard M.2 NVMe SSD expansion — you're not locked into a proprietary card the way Xbox is. A drive with its own heatsink is the safer bet; PS5's expansion slot runs hot enough that a bare drive can thermal-throttle under sustained load.

DriveCapacity
WD_BLACK SN850X NVMe SSD with Heatsink — up to 7,300 MB/s read 1TB Check price →

Xbox Series X|S storage expansion

Xbox Series X|S uses a proprietary expansion card that slots directly into the back of the console — no installation, no heatsink to worry about, but it costs more per gigabyte than a standard PS5-compatible SSD.

DriveCapacity
Storage Expansion Card for Xbox Series X|S 1TB Check price →

How much do you actually need?

If GTA VI's install size lands anywhere close to recent open-world flagship titles, a 1TB expansion gives you enough headroom to keep it installed alongside a handful of other large games. If you're already down to your last 100–150GB free across your whole console, don't wait for launch week to sort this out.

Next step

Haven't picked a platform yet? Start with PS5 vs Xbox Series X|S for GTA VI, or run through the full pre-launch checklist.