How much storage you need for GTA 6 — and the SSD you should actually buy
Start with the thing every other page on this topic gets wrong: Rockstar has not published an install size for Grand Theft Auto VI. Not on its own site, not in its support documentation, and not on the PlayStation or Microsoft store listings, both of which we checked directly. Anyone quoting you a specific number is quoting an estimate, a guess, or a storefront placeholder.
That matters, because the honest version of this guide is not “buy this drive.” It is: here is exactly how much room you have, here is what officially works on your console, and here is why this is a genuinely bad moment to buy storage if you can avoid it.
The 676.7 GB number is wrong
You will run into this figure. It came from a Microsoft Store listing in December 2025, and it was debunked more or less immediately — by the same outlet that first reported it, which noted the pre-order download was about 330 MB and that the number behaved like a placeholder. The current Xbox listing shows no size at all. Neither does the PlayStation one.
Treat 676.7 GB as false. No console game has ever come close to that, and nothing about Rockstar’s own materials supports it.
The credible estimates from people who follow this closely land somewhere around 150–300 GB, with 150–200 GB the most common guess. We want to be clear about what that is: informed speculation by outlets and communities, not a figure attributable to anyone at Rockstar or either platform holder. We will replace this section with a real number the day one exists.
What you actually have free right now
Console marketing capacity and usable capacity are different numbers, and the gap is where people get caught out. These are third-party measurements — neither Sony nor Microsoft publishes usable figures — but they are consistent across sources:
| Console | On the box | Actually free |
|---|---|---|
| PS5 (original, 825 GB) | 825 GB | around 667 GB |
| PS5 Slim (1 TB) | 1 TB | around 848 GB |
| PS5 Pro (2 TB) | 2 TB | around 1.89 TB |
The PS5 Pro is the standout — it gives up almost nothing to system overhead.
Now do the arithmetic that actually decides this. If GTA 6 lands at the high end of the estimate range, an original PS5 with a normal library of four or five big installed games will not fit it. If it lands at the low end, most people will be fine after deleting one thing they have not played since spring. You do not know which yet, and neither does anyone selling you a drive.
There is a second, less obvious space cost: preload. The game becomes downloadable on November 12 — seven days before launch — and a day-one patch on a game this size is close to a certainty. Leave yourself headroom beyond the install size itself.
PS5: you can shop the whole market
Sony’s requirements for an internal M.2 SSD, from its own support documentation:
- PCIe Gen4 x4 NVMe M.2 (Key M)
- Sequential read of 5,500 MB/s or faster — note Sony’s exact word is recommended, not required. A slower drive will generally install and run; it is a performance floor, not a lock.
- 250 GB to 8 TB
- Form factors 2230 through 22110, up to 25 mm wide
- Total thickness no more than 11.25 mm, of which no more than 8 mm sits above the board
That last requirement is the one that trips people up. A heatsink is not optional — Sony explicitly calls for a cooling structure — but a heatsink that is too tall physically will not let the drive bay cover close. Buy a drive sold with a heatsink already fitted for PS5 use, or verify the height yourself. This is the single most common returned-purchase mistake in this category.
Beyond that, you are shopping a competitive open market. Any drive meeting the spec works. You are not locked to a brand.
One gap worth naming: Sony’s installation page covers the CFI-1000 and CFI-2000/7000 model groups and does not explicitly name the PS5 Pro. In practice the Pro uses the same M.2 slot and the same spec, but Sony has not restated it for that model on that page.
Xbox Series X|S: you have exactly one option, and it is expensive
This is where the two consoles genuinely diverge, and it is worth understanding before you spend anything.
An Xbox Series X|S game — which GTA 6 is — can only be played from the internal SSD or from a proprietary Storage Expansion Card. Microsoft’s own words on the expansion card: you “will have the exact same experience and performance as if the game was running from the internal SSD.” And in Microsoft’s own comparison of storage options, a USB 3.1 drive under “plays games optimized for Xbox Series X|S” reads simply: No.
There is no third-party alternative. There is no M.2 slot to shop. The cards come from Seagate (1 TB, 2 TB and 4 TB) and, more recently, Western Digital’s WD_BLACK C50 (1 TB and 2 TB). That is the entire market.
If you own a Series S, this is more urgent than for anyone else — its internal drive is the smallest of the current generation, and a game of this size will dominate it.
The part nobody wants to tell you: this is a bad time to buy
There is a serious NAND flash shortage running through 2026, and SSD prices have risen sharply — in many cases well beyond doubling from where they sat a year ago. Manufacturers have pushed through repeated price increases, and industry forecasts do not expect relief soon. Xbox expansion cards have been hit hardest, because their supply is narrow to begin with: several capacities are intermittently out of stock, sold only by third-party marketplace sellers, or listed at prices that bear no relationship to their original MSRP.
We are deliberately not printing specific prices in this guide. They are moving week to week, and a number we published today would be misleading by the time you read it. Check the live listing, and know that anything resembling 2024 pricing is a genuine deal rather than the norm.
What this changes about the advice: the cost of waiting has gone down and the cost of panic-buying has gone up. You have until November 12 before space actually matters, the install size is still unknown, and the market may soften. Buying in September to be safe is buying at a bad price to solve a problem you have not confirmed you have.
The cheap move most people should make first
Before buying anything, understand what a plain USB drive can and cannot do, because this is the most misunderstood point in console storage.
You cannot play GTA 6 from a USB drive. Not on PS5, not on Xbox. Sony states it directly: PS5 games “can’t be played directly from USB extended storage.” Microsoft’s position on Series-native games is the same.
What a USB drive can do is hold your other games. Move four large titles you are not currently playing onto a cheap external drive, and you free that space on the internal SSD for GTA 6. When you want one of those games back, it copies from USB — which is dramatically faster than re-downloading it, and does not consume bandwidth.
USB storage costs a fraction of what an M.2 drive or an expansion card costs, especially right now. For a large number of people, a cheap USB drive plus twenty minutes of shuffling is the entire solution, and the correct amount to spend on this problem is well under a hundred dollars.
(For PS5 specifically: USB extended storage needs SuperSpeed USB 5 Gbps or better, between 250 GB and 8 TB, plugged directly into the console rather than through a hub. Older PS4 games can be played straight from USB — it is only PS5-native titles that cannot.)
So what should you actually do?
If you have a PS5 Pro: nothing. You have roughly 1.89 TB free. Revisit this if the install size comes in at the absurd end.
If you have a PS5 Slim or a 1 TB console and a light library: nothing yet. Wait for the install size, then decide. You will very likely be fine after deleting one game.
If you have an original 825 GB PS5: buy a cheap USB drive now and move your dormant games onto it. That is enough for most people. Only consider an M.2 drive if you genuinely want several large games installed simultaneously and are prepared to pay current prices.
If you have a Series X: same as above — USB shuffling first, expansion card only if you truly need concurrent installs.
If you have a Series S: you are the one person here with a real reason to act early. Space is tight, the expansion card is your only option, and it is the scarcest product in this guide. Watch for stock and price rather than waiting for the last week.
Everyone: free up space before November 12, not November 18. Preload exists so that you are playing at launch rather than watching a progress bar, and the whole point is lost if you spend that evening deleting things.
What we will update, and when
Three things will change this page, and we will re-date it when they do:
- The official install size, whenever Rockstar or a storefront publishes it. That single number resolves most of the uncertainty above.
- Day-one patch size, once it is known.
- Whether SSD prices ease, since the current market is the main reason this guide says “wait” as often as it does.
Until then, the most useful thing we can tell you is what we do not know, and why that means you probably should not be spending money yet.