The install screen wants a hundred and ninety-odd gigabytes, the drive has forty-one left, and something has to go. Choosing an SSD for gaming PCs usually starts at exactly that moment, which is unhelpful, because the right answer depends less on speed ratings than on the machine in front of you: how many slots it has, whether it is a desktop or a laptop, and whether games are the only thing it will ever be asked to do.
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Use case 1: a desktop, where an SSD for gaming PCs is two decisions, not one
In a tower, the question splits. There is the drive Windows lives on, and there is the drive your library lives on, and they do not have to be the same part. The boot drive rewards responsiveness. The library drive rewards capacity, because a modern install is measured in tens of gigabytes and a shooter that updates weekly will eat a slot on its own.
The practical constraint is slot count. Most mid-range boards give you two M.2 slots and a handful of SATA ports, and plenty of prebuilt systems ship with one M.2 slot already occupied. Before you buy anything, open the case and look, because the decision between “add a second drive” and “replace the one I have and move everything” is the difference between a fifteen-minute job and an evening.
A note on expectations. If your current drive is already solid state, a faster one will not change how a game plays. Frame rate is decided by the processor and the graphics card, and if that is the thing bothering you, the money belongs somewhere else — our guide to budget graphics cards for 1080p gaming covers that part of the build.
Use case 2: a console, where the requirements are published
Consoles are the one place in this whole category where you do not have to guess, because the platform holder prints the specification. For the PlayStation 5, Sony’s own support page asks for a PCI-Express Gen4x4 M.2 NVMe drive, between 250 GB and 8 TB, and states that a sequential read speed of “5,500MB/s or faster is recommended.”
The part that catches people out is physical rather than electrical. Sony lists supported form factors of 2230, 2242, 2260, 2280 and 22110, a width of up to 25 mm (about one inch) and — including any heatsink — a total thickness of up to 11.25 mm, which it breaks down as up to 8.0 mm above the board and 2.45 mm below, together a little under half an inch. Plenty of drives meet the speed requirement and will not physically close the cover with their cooler attached. Sony also says plainly that it “cannot guarantee that all M.2 SSD devices meeting the described specifications will work with your console,” which is a useful reminder that a published floor is a floor, not a promise.
Use case 3: the laptop with one slot and a warranty sticker
Buying an SSD for laptops is mostly a question about disassembly, not about storage. The usual situation is a single M.2 slot that already holds the drive the machine shipped with, which means an upgrade is a replacement, which means the contents have to move first.
That reframes the whole purchase:
- Check the slot count and the supported length before anything else. Some thin laptops only accept the short 2230 size.
- Budget for a USB enclosure. Cloning to the new drive outside the machine, then swapping it in, is far less stressful than restoring from a backup afterward.
- Find out whether opening the case voids anything. On a machine still under warranty this can decide the question for you.
- Check whether the drive is even removable. A growing number of thin laptops solder storage to the board, and no purchase fixes that.
Where a laptop genuinely is upgradeable, this is one of the few remaining upgrades that changes how the machine feels day to day — particularly on older ultraportables that shipped with slow eMMC storage rather than a real SSD.
Use case 4: video editing, where the workload is the point
Choosing an SSD for video editing means paying attention to a rating most gamers can ignore: endurance, usually printed as terabytes written. The reason it matters is buried in how drives are graded.
JEDEC, the semiconductor standards body, defines application classes in JESD218. A Client-class drive is rated against a client workload at 40 °C (104 °F) for eight hours a day, with one year of data retention at 30 °C (86 °F) once powered off. An Enterprise-class drive is rated at 55 °C (131 °F) for twenty-four hours a day, with three months of retention at 40 °C (104 °F). The endurance figure on a consumer drive’s box assumes the first pattern, not the second.
An editing scratch disk does not behave like a client workload. Ingesting a day of footage, generating previews, rendering, and then doing it again writes far more per day than a games library does, and it does it in a warm case. That does not mean editors need enterprise drives. It means the terabytes-written number is the spec to compare, capacity is worth over-buying because a fuller drive writes less comfortably, and the scratch disk should not also be the drive your project files live on permanently.
Use case 5: you just want the machine to start faster
Shopping for an SSD for faster boot times deserves a blunt answer, because it is the one case where the upgrade is frequently the wrong purchase. If the machine currently boots from a spinning hard disk, moving to any solid-state drive is transformative and you will notice it within a day. If it already boots from an SSD, moving to a faster SSD will change the start-up sequence by an amount you will struggle to perceive, because most of what happens during boot is not limited by how fast the drive can read.
Things that do affect start-up more than drive choice:
- The number of programs set to launch at sign-in. This is usually the largest single factor and it costs nothing to fix.
- Whether the drive is nearly full. Leave meaningful free space and the drive has room to work.
- Firmware settings, which can add several seconds of hardware checks before the operating system is reached at all.
- Pending updates, which turn one slow restart into an apparent hardware problem.
What DirectStorage changed, and what it did not
The technology most often cited in drive marketing is worth understanding at the level of what it requires. DirectStorage moves the work of decompressing game data from the processor to the graphics card. In Microsoft’s own demonstration of DirectStorage 1.1, a sample scene loaded in 0.8 seconds using GPU decompression against 2.36 seconds on the processor, which the company described as “nearly 3x faster.” On the Xbox side, Microsoft’s developer documentation sets the goal as handling “up to 50,000 requests per second while using at most 10% of a single CPU core.”
The requirements are modest and the caveat is large. It runs on Windows 10 and Windows 11, with Microsoft noting “additional optimizations in the IO stack available to Windows 11 users,” and works with “any DirectX 12 capable GPU that supports Shader Model 6.0.” An NVMe drive is needed to see a real difference. The caveat: none of it does anything unless the specific game you are loading implements it, and most do not. Buy the drive for the capacity and the endurance you need; treat load-time gains as a bonus in the handful of titles that use them.
Side-by-side by situation
| Your situation | What decides the purchase | What to ignore |
|---|---|---|
| Desktop, one free M.2 slot | Capacity per dollar for the library drive | Peak sequential numbers on the box |
| Desktop, no free slot | Whether you are willing to clone and replace | Adding a slower drive you will not use |
| PlayStation 5 | Sony’s published speed floor and the 11.25 mm height limit | Any drive whose heatsink will not fit |
| Laptop | Slot length, removability, and a cloning enclosure | Enterprise-grade endurance you will never use |
| Video editing | Terabytes written, plus generous spare capacity | Running a scratch disk near full |
| Coming from a hard disk | Almost anything solid state | Paying up for the fastest tier |
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Frequently Asked Questions
The questions below come up constantly, and the answers change depending on which machine you are upgrading rather than on which drive you buy.
How much capacity do I actually need for games?
Count the installs you keep permanently and add half again. Large modern titles routinely occupy 100 GB or more each, and a drive kept close to full has less room to manage writes. If you rotate through two or three games at a time, a smaller fast drive plus a larger slower one is a reasonable split.
Does a faster drive give me more frames per second?
No. Storage speed affects how long you wait at a loading screen and how smoothly a large open world streams in, not how many frames the graphics card produces. If frame rate is the complaint, the drive is not the fix.
Can I use the same drive for gaming and editing?
Yes, but watch the endurance rating and leave more free space than a games-only machine would need. The safer arrangement is a separate volume for editing scratch files, so that a heavy project month is not also writing across the drive your library sits on.
Do I need a heatsink?
In a desktop with reasonable airflow, often not. In a console it is required, and the height limit is strict. In a thin laptop there is rarely room for one at all, which is a reason to favor a drive that runs cool rather than one that runs fastest.
Conclusion
The useful question is never which drive is fastest but which machine you are putting it in and what you will ask it to do. A desktop with a free slot, a console with a published specification, a laptop with one slot and a warranty, and an editing workstation are four different purchases that happen to share a shape. Work out the constraint first — slots, physical size, endurance — and the shortlist will narrow itself before you ever read a speed rating.
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