PS5 vs Xbox Series X Storage & Expansion Cost (2026): The Full Breakdown
Key Findings at a Glance
- → A base PS5’s 825GB drive leaves just 667GB usable after system files (GamesRadar+, 2023)
- → The Xbox Series X’s 1TB drive leaves 802GB usable, confirmed via IGN’s pre-launch hands-on (Windows Central, 2020)
- → A 512GB PCIe Gen 4 NVMe SSD’s price jumped 54% quarter-over-quarter to $126.30 in Q2 2026 (ProPakistani/Sigmaintell, 2026)
- → Xbox’s 1TB expansion card has fallen from $220 at 2020 launch to roughly $150 in 2026 (TechRadar / Gaming ProMax)
- → The Xbox Series S offers only about 364GB usable from its 512GB drive — under half the Series X’s headroom (Gaming ProMax, 2026)
- → Call of Duty: Black Ops 7 needed up to 214.8GB free just to begin its Xbox download in November 2025 (Insider Gaming, 2025)
- → Sony’s M.2 expansion bay now supports drives up to 8TB, up from a 4TB ceiling in early PS5 Slim manuals (Tom’s Hardware, 2026)
Storage has quietly become the most expensive ongoing cost of owning a PS5 or Xbox Series X. Both consoles shipped with far less usable space than their advertised specs suggest, and expanding that space now costs more than it did even six months ago, thanks to a global memory shortage rippling out of the AI boom — even as UK gamers keep spending more than ever, with the UK games market hitting a record £8.76bn this year. This breakdown covers exactly how much space each console gives you out of the box, what it costs to add more in 2026, and why the two platforms’ expansion paths, one open and one proprietary, end up costing such different amounts for the same terabyte.
1667GB vs. 802GB: What You Actually Get Out of the Box
A base PS5 advertises 825GB but delivers about 667GB usable; the Xbox Series X advertises 1TB and delivers about 802GB usable. Neither console gives you the number on the box — system files, firmware, and OS overhead quietly claim 15–20% of the drive before you install a single game.
| METRIC | VALUE | SOURCE |
|---|---|---|
| PS5 (launch/base) | 825GB / 667GB usable | GamesRadar+ |
| PS5 Slim (disc edition) | 1TB / ~842GB usable | MiniTool |
| PS5 Pro | 2TB / ~1.86TB usable | MiniTool / GameWiki.blog |
| Xbox Series X | 1TB / 802GB usable | Windows Central (IGN) |
| Xbox Series S | 512GB / ~364GB usable | Gaming ProMax / TechRadar |
Run the percentages and the two flagship consoles are nearly identical in efficiency: the base PS5 returns about 80.9% of its advertised capacity, the Series X about 80.2%. The 135GB gap between them comes down to Xbox simply shipping a larger drive, not a smarter OS footprint — worth keeping in mind alongside our wider Xbox statistics roundup if you’re comparing the two ecosystems more broadly, or if a PS5-exclusive release like Marvel’s Wolverine is part of why you’re leaning PlayStation. The real outlier is the Series S, which loses nearly 30% of its drive to overhead and is left with less than half the headroom of either flagship.
2$150 vs ~$90: The Real Cost of Adding a Terabyte
In 2026, Microsoft’s official 1TB Xbox Storage Expansion Card runs about $150, while a comparable 1TB-class PS5 M.2 NVMe SSD routinely sells for under $100 — because Xbox locks expansion to one proprietary format while the PS5 accepts almost any qualifying M.2 drive on the open market.
| METRIC | VALUE | SOURCE |
|---|---|---|
| Xbox 1TB Expansion Card (launch, Nov. 2020) | $220 | TechRadar |
| Xbox 1TB Expansion Card (2026) | ~$150–160 (Seagate) / ~$149–150 (WD_BLACK C50) | Gaming ProMax |
| Xbox 2TB Expansion Card (Black Friday sale) | $193.43 | Yahoo Tech / ExtremeTech |
| PS5 SSD — WD Black SN7100 2TB | $149.99 | Tom’s Hardware |
| PS5 SSD — TeamGroup MP44Q 2TB (budget) | $107.99 (sale $98.09) | Tom’s Hardware |
| PS5 SSD — WD Black SN850X 2TB (premium) | $338.52 | Tom’s Hardware |
| PS5 SSD — WD Black SN850X 8TB | $649.99 | Tom’s Hardware |
Xbox’s 1TB card has actually fallen more than 30% from its $220 launch price, so the gap has narrowed since 2020 — but it hasn’t closed. Whichever way you go, shop carefully right now, because the ranking below $200 changes often as NAND pricing moves week to week.
3Why Storage Got More Expensive This Year
A 512GB PCIe Gen 4 NVMe SSD’s average price jumped 54% quarter-over-quarter to $126.30 in Q2 2026, driven by AI data centers consuming an estimated 70% of global memory supply — a shortage analysts expect to keep storage prices elevated through 2027 or 2028.
| METRIC | VALUE | SOURCE |
|---|---|---|
| 512GB PCIe Gen4 NVMe SSD, Q2 2026 contract price | $126.30 (+54% QoQ) | ProPakistani / Sigmaintell |
| 256GB UFS 3.1 storage, Q2 2026 | +103% QoQ | ProPakistani / Sigmaintell |
| Share of global memory supply used by AI data centers | ~70% (estimate) | Hiper Global |
| Expected duration of elevated pricing | Through 2027–2028 | Hiper Global (TechInsights) |
This isn’t a console-specific problem — it’s a broader SSD and RAM squeeze, and it hits Xbox and PlayStation storage upgrades the same way it hits a laptop or desktop SSD purchase. The practical takeaway: if you’ve been putting off a storage upgrade, prices are more likely to keep drifting up than down before 2027.
4How the Two Expansion Systems Actually Work
PS5 expansion means opening a side panel and screwing in any qualifying M.2 NVMe SSD; Xbox expansion means sliding a proprietary card into a rear slot with no tools at all — but that convenience is exactly what locks Xbox owners into Seagate or WD_BLACK’s pricing instead of the open SSD market.
| METRIC | VALUE | SOURCE |
|---|---|---|
| PS5 M.2 slot requirement | PCIe Gen4 x4, ≥5,500MB/s read, M.2 2280 (also 2230/2242/2260/22110), ≤11.25mm w/ heatsink, 250GB–8TB | Sony / PlayStation Support |
| PS5 install process | Remove side panel, #1 Phillips screwdriver, console auto-formats | Sony / Tom’s Hardware |
| Xbox expansion method | Proprietary Storage Expansion Card only (Seagate or WD_BLACK C50) | Gaming ProMax |
| Xbox install process | Slide into rear slot, ~10 seconds, no tools | Gaming ProMax |
| PS5 external USB support | 5Gbps+, 250GB–8TB, one drive at a time, “USB Extended Storage” format | DataProt |
| Xbox external USB support | Stores older/backward-compatible titles directly; Series X|S-optimized games must move to internal or expansion storage to play | Gaming ProMax |
Despite the very different internal-expansion philosophies, both platforms land on the same USB restriction: an external drive is fine for archiving your backlog, but current-gen optimized titles have to live on fast, directly-attached storage to actually run. That matters more by the year, given Sony’s own plans to phase out PlayStation discs — a disc-free future puts even more weight on however much internal or expansion storage you’ve got.
5How Fast One Game Can Eat That Space
Call of Duty: Black Ops 7 needed up to 214.8GB of free space to begin downloading on Xbox in November 2025 — nearly 27% of a Series X’s total usable storage for one title — while its PS5 footprint ran 96.7GB to 166GB depending on which packs were installed.
| METRIC | VALUE | SOURCE |
|---|---|---|
| Black Ops 7 (Nov. 2025), PS5 | 96.7GB base; ~130–166GB w/ all packs | TheSixthAxis |
| Black Ops 7 (Nov. 2025), Xbox Series X|S | Up to 214.8GB to start download; ~167.9GB final install | Insider Gaming |
| Black Ops Cold War (2020), PS5 — for comparison | 133GB | TweakTown |
| Black Ops Cold War (2020), Xbox Series X — for comparison | 136GB (190GB full install w/ HD packs) | TweakTown / VideoGamesChronicle |
Line up the same franchise five years apart and the trend is unmistakable: Call of Duty’s footprint on PS5 barely moved, but its Xbox download requirement grew by more than half. Add a subscription library like Xbox Game Pass’s steady monthly additions and it’s easy to see how a base console fills up in a single weekend. The next real stress test is already on the calendar: GTA 6’s November 19 launch is expected to be the largest single install either platform has faced yet.
Storage Headroom Calculator
Methodology
All capacity, pricing, and install-size figures in this article are drawn from manufacturer documentation, hands-on outlet testing, and live retail pricing captured between June and September 2026; every figure is individually cited in the tables above and the source list below.
- Sources consulted: 40, across manufacturer support pages, hardware review outlets, and market-research reporting
- Data range: September 28, 2020 to September 17, 2026
- Last verified: September 25, 2026
- Update schedule: Quarterly, or sooner if Sony or Microsoft change official storage specifications
- Limitations: Retail SSD and expansion-card pricing fluctuates weekly amid the 2026 memory shortage; figures reflect prices captured between June and September 2026 and should be treated as a snapshot, not a live quote. Xbox Series S usable-storage figures trace back to a 2020 user-reported leak, though they’ve been repeatedly corroborated by outlets and Microsoft’s own game-size guidance since.
Frequently Asked Questions
How much usable storage does the PS5 actually have?
The base PS5 advertises 825GB but leaves about 667GB usable after system files. The PS5 Slim disc edition jumps to roughly 842GB usable on its 1TB drive, and the PS5 Pro’s 2TB drive leaves about 1.86TB usable, per GamesRadar+ and current 2026 storage breakdowns.
How much usable storage does the Xbox Series X actually have?
The Xbox Series X’s 1TB SSD leaves about 802GB usable once roughly 198GB is reserved for the OS — confirmed by IGN’s pre-launch hands-on and repeated by Windows Central and VGC. The Series S fares worse, with only about 364GB usable from its 512GB drive.
Can I use a regular USB external drive to expand PS5 or Xbox storage?
Both consoles support USB drives, but with the same catch: they’re fine for archiving older or backward-compatible games, but current-gen optimized titles must be copied back to internal or expansion-slot storage before you can actually play them, per Sony and Xbox’s own documentation.
What’s the cheapest way to expand PS5 storage in 2026?
Because the PS5 uses an open M.2 NVMe standard rather than a proprietary card, budget options like the TeamGroup MP44Q 2TB (listed at $107.99, on sale for $98.09) meet Sony’s requirements for a fraction of the cost of premium drives, per Tom’s Hardware’s live September 2026 pricing.
Why are Xbox Series X expansion cards so much more expensive than PS5 SSDs?
Xbox locks expansion to a proprietary card format built and licensed by just two manufacturers (Seagate and WD_BLACK), while the PS5 accepts any M.2 NVMe SSD meeting Sony’s open speed and size specification — creating real price competition that proprietary hardware doesn’t have.
Why did SSD and storage expansion prices jump in 2026?
A global memory shortage, driven largely by AI data centers consuming an estimated 70% of memory supply, pushed 512GB PCIe Gen 4 NVMe SSD prices up 54% quarter-over-quarter to $126.30 in Q2 2026 alone, according to market researcher Sigmaintell. Analysts expect elevated pricing to persist into 2027–2028.
Do I need a heatsink to upgrade PS5 storage?
Yes. Sony requires any M.2 SSD installed in the PS5’s expansion bay to include cooling that keeps the total drive-plus-heatsink height at or under 11.25mm, per Sony’s official support documentation. Many PS5-compatible drives ship with one preinstalled; bare drives need an aftermarket heatsink added.
How fast do modern games fill up console storage?
Call of Duty: Black Ops 7 (November 2025) needed up to 214.8GB of free space to begin its Xbox download and around 96.7–166GB on PS5 with all packs installed — meaning a single release can consume close to a quarter of a base PS5’s usable storage, per Insider Gaming’s platform-by-platform breakdown.
Sources & References
- GamesRadar+. “How much storage does the PS5 have?” gamesradar.com/ps5-storage-space-how-much-hard-drive-size. Accessed September 25, 2026.
- Windows Central. “Xbox Series X internal SSD has 802GB of usable storage.” windowscentral.com. Accessed September 25, 2026.
- TechRadar. “Xbox Series X only comes with 802GB of usable storage – what does that mean for PS5?” techradar.com. Accessed September 25, 2026.
- MiniTool. “How Much Storage Does the PS5 Have? A Complete Guide.” minitool.com. Accessed September 25, 2026.
- Gaming ProMax. “Xbox Storage Expansion Card Guide 2026.” gamingpromax.com. Accessed September 25, 2026.
- Tom’s Hardware. “The Best PS5 SSDs in 2026.” tomshardware.com. Accessed September 25, 2026.
- Sony Interactive Entertainment. “How to add an M.2 SSD to a PS5 console.” playstation.com. Accessed September 25, 2026.
- ProPakistani. “RAM and Storage Prices Surge by Up to 107% in Just Three Months.” propakistani.pk. Accessed September 25, 2026.
- Hiper Global. “Memory and SSD Supply Chain Update – Mid-2026.” hiper-global.com. Accessed September 25, 2026.
- TheSixthAxis. “The file size for Call of Duty: Black Ops 7 has been revealed.” thesixthaxis.com. Accessed September 25, 2026.
- Insider Gaming. “Pré-load do Black Ops 7 já está disponível: veja o tamanho em cada plataforma.” insider-gaming.com. Accessed September 25, 2026.
- TweakTown. “Black Ops Cold War takes up 136GB on Series X, 133GB on PS5.” tweaktown.com. Accessed September 25, 2026.
- DataProt. “How Much Storage Does the PS5 Have?” blog.dataprot.net. Accessed September 25, 2026.
- Yahoo Tech / ExtremeTech. “Black Friday Must-Have: Seagate’s 2TB Xbox Expansion Card for $193.43.” tech.yahoo.com. Accessed September 25, 2026.
Abi has been writing about gaming, sports, puzzles, and UK entertainment since 2019. She covers everything from game reviews and festival previews to your daily Wordle hints — always from a British perspective.
