Our Top Picks
The best NVMe SSD upgrade for a gaming laptop is a single M.2 2280 PCIe Gen4 drive in the capacity you will actually fill, and the seven drives below all fit that description, with the Samsung 990 EVO Plus family as the most flexible choice because it comes in 1TB, 2TB and 4TB versions on the same listing format. If budget is the priority, the two KingSpec drives and the Crucial P310 1TB sit in the lower price tiers. If you need maximum capacity, the Lexar 4TB NM790 and the Samsung 4TB are the two largest options.
The twist with laptops is that raw speed is the least important thing on the spec sheet. Fit decides everything: slot length, interface, heatsink clearance and whether the drive is single-sided. A drive that arrives and does not fit is a return and a lost weekend, so this guide spends as much time on checks as on the drives themselves.
Seven drives, side by side
Samsung SSD 990 EVO Plus 2TB, PCIe Gen 4x4 | 5x2 M.2 2280, Up to 7,250 MB/s | NVMe Internal Solid State Drive, Upgrade Storage for PC/Laptops, HMB Technology & Intelligent Turbowrite 2.0 (MZ-V9S2T0B/AM)
One of the product options compared in this guide.
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KingSpec 1TB M.2 NVMe PCIe Gen4 SSD - Up to 7400MB/s Read, Championship Edition, 3D NAND Flash, Ideal for PS5, Gaming PC & Laptop Upgrade
One of the product options compared in this guide.
View on AmazonKingSpec 2TB M.2 NVMe PCIe Gen4 SSD - Up to 7400MB/s Read, Championship Edition, 3D NAND Flash, Ideal for PS5, Gaming PC & Laptop Upgrade
One of the product options compared in this guide.
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Crucial P310 2280 1TB PCIe Gen4 NVMe Gaming PS5 SSD with Heatsink, Up to 7,100MB/s, PlayStation5, Laptop & Desktop (PC) Compatible, Solid State Drive - CT1000P310SSD5-01
One of the product options compared in this guide.
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Samsung SSD 990 EVO Plus 4TB, PCIe Gen 4x4 | 5x2 M.2 2280, Up to 7,250 MB/s | NVMe Internal Solid State Drive, Upgrade Storage for PC/Laptops, HMB Technology & Intelligent Turbowrite 2.0 (MZ-V9S4T0B/AM)
One of the product options compared in this guide.
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Samsung SSD 990 EVO Plus 1TB, PCIe Gen 4x4 | 5x2 M.2 2280, Up to 7,150 MB/s | NVMe Internal Solid State Drive, Upgrade Storage for PC/Laptops, HMB Technology & Intelligent Turbowrite 2.0 (MZ-V9S1T0B/AM)
One of the product options compared in this guide.
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Lexar 4TB NM790 NVMe SSD w/Heatsink, 7400/6500 MB/s, M.2 2280, PCIe Gen 4x4 | Compatible w/ PS5, Gamers & Content Creators, PC & Laptops, SLC Cache, Single-Sided Design, LNM790X004T-RN9NU
One of the product options compared in this guide.
View on Amazon| Drive | Capacity and speed from the title | Notes from the title | Price tier |
|---|---|---|---|
| KingSpec 1TB M.2 NVMe Gen4 | 1TB, up to 7400MB/s read | 3D NAND, “Championship Edition”, PS5 and laptop wording | Budget |
| Crucial P310 1TB with Heatsink | 1TB, up to 7,100MB/s | Heatsink, PS5 compatible, laptop and desktop | Budget |
| Samsung 990 EVO Plus 1TB | 1TB, up to 7,150MB/s | PCIe Gen 4×4, M.2 2280, HMB, Intelligent TurboWrite 2.0 | Mid-range |
| KingSpec 2TB M.2 NVMe Gen4 | 2TB, up to 7400MB/s read | Same family as the 1TB | Mid-range |
| Samsung 990 EVO Plus 2TB | 2TB, up to 7,250MB/s | PCIe Gen 4×4, HMB, Intelligent TurboWrite 2.0 | Mid-range |
| Lexar 4TB NM790 with Heatsink | 4TB, 7400/6500MB/s | Heatsink, SLC cache, single-sided design | Premium |
| Samsung 990 EVO Plus 4TB | 4TB, up to 7,250MB/s | PCIe Gen 4×4, HMB, Intelligent TurboWrite 2.0 | Premium |
Tiers are relative inside this set, and capacity drives most of the price. Compare drives of the same capacity with each other rather than comparing a 1TB drive to a 4TB one.
Four fit checks before you buy anything
Run through this list with your laptop’s model number in hand. It takes about ten minutes and saves the most common upgrade failure.
- Slot length. Every drive here is M.2 2280, meaning 22 mm wide and 80 mm long. Most gaming laptops use that size, but some use shorter or longer slots, so confirm in the service manual.
- Interface and generation. The listed drives are PCIe Gen4 NVMe. If your slot is Gen3, the drive will still work but at the lower speed.
- Heatsink room. Two drives include a heatsink. Laptops often have only a few millimeters above the slot. Look for a statement in the manual, or ask support.
- One slot or two. Some laptops have two M.2 slots. If yours does, you can add a second drive instead of replacing the first, which keeps your existing install intact.
Also check whether the slot is shared with another feature, such as a SATA port or a wireless card, and whether the laptop is among the models that lock the drive to a particular configuration. Manufacturer documentation is the right source for these answers.
Capacity math: how many games fit?
Capacity is the choice that matters most, so a small calculation helps. The numbers below are assumptions we picked for illustration. Install sizes vary widely between games and change with updates, so use your own library for the real figures.
| Assumption | Size used in the example |
|---|---|
| Windows and apps | 150 GB |
| Large modern game | 100 GB each |
| Mid-size game | 50 GB each |
| Small or older game | 15 GB each |
| Free space to keep for speed and updates | 10 percent of the drive |
Marketing capacity uses decimal units, so a 1TB drive shows about 931 GB in Windows. With a 10 percent reserve, 1TB leaves roughly 690 GB for games after the operating system and apps (931 minus 93 minus 150). That is about six large games and a few small ones, or around ten mid-size titles. A 2TB drive (about 1,862 GB) leaves around 1,525 GB, which is roughly 12 large games, 12 mid-size games and several small ones. A 4TB drive leaves around 3,390 GB, which is more than most people install at once.
The practical advice: if you keep three or four games installed at a time, 1TB is enough. If you hold a rotating library of ten or more big titles, buy 2TB. Buy 4TB only if you also store video captures, creative projects or an archive of games you do not want to re-download.
The seven drives in detail
Samsung 990 EVO Plus 1TB
The 1TB Samsung is the entry point to the family. Its title lists PCIe Gen 4×4, a “5×2” lane note, M.2 2280, up to 7,150 MB/s, an NVMe internal SSD for PCs and laptops, HMB technology and Intelligent TurboWrite 2.0. HMB and Intelligent TurboWrite 2.0 are named in the title but not explained, so read the product page for what they mean in practice.
It sits in the Mid-range tier, above the two other 1TB drives, so the premium is for the Samsung brand and its specification rather than any speed advantage on paper: its stated maximum is lower than the KingSpec. As a bare M.2 stick with no heatsink listed, it is the 1TB option most likely to fit under a laptop’s own cover, though you should still confirm clearance.
Pros
- Bare drive with no listed heatsink, so it is easier to fit under a laptop cover
- Part of a family with 2TB and 4TB siblings
- Model number in the title makes warranty and firmware lookups easy
Cons
- Costs more than two 1TB rivals
- Stated top speed is not the highest in the group
- Gen4 benefit is wasted in a Gen3-only laptop slot
Who it’s for: buyers who want a bare 1TB drive from a major brand and are willing to pay more for that.
Samsung 990 EVO Plus 2TB
The 2TB version has the same title format: PCIe Gen 4×4, M.2 2280, up to 7,250 MB/s, HMB and Intelligent TurboWrite 2.0, with part number MZ-V9S2T0B/AM. The step up from 1TB to 2TB nudges the stated speed up slightly, from 7,150 to 7,250 MB/s, but the real change is the library space: with our assumptions above, you gain roughly 835 GB of room for games.
For most gaming laptop owners, 2TB is the capacity that stops the “delete a game to install a game” cycle. It is in the Mid-range tier, alongside the KingSpec 2TB, so the choice between them comes down to brand preference, warranty handling and whether you want a listed technology such as HMB.
The title does not tell you endurance, power draw or temperature behavior. Laptop owners should care about the last of those, since a hot drive in a tight chassis can throttle. Look at the product page for endurance ratings and any thermal notes before buying.
Pros
- 2TB is a comfortable size for a rotating game library
- Same bare-stick format as the 1TB
- Specific part number helps with support
Cons
- Mid-range tier price
- No thermal or endurance data in the title
- Performance gain over 1TB is small on paper
Who it’s for: the typical gaming laptop owner who wants one drive to last several years.
Samsung 990 EVO Plus 4TB
The 4TB model repeats the family format with a 7,250 MB/s stated maximum and part number MZ-V9S4T0B/AM. It is the largest-capacity drive in the group and the highest-priced one, falling into the Premium tier. At roughly 3,390 GB of usable game space under our assumptions, it can hold an entire library of large titles with room for captures.
A 4TB drive is a good fit for a laptop with a single M.2 slot where you cannot add a second drive. The trade-off is risk concentration: if the only drive fails, everything goes with it. That makes backups more important, not less, and it argues for an external drive or cloud backup for personal files and saves.
Also check that your laptop’s BIOS and operating system handle 4TB drives. Most modern systems do, but older firmware can behave oddly, and the manufacturer’s support page is the place to confirm.
Pros
- Very large capacity in one slot
- Same bare-drive format as the smaller Samsung models
- No heatsink complication listed
Cons
- Highest price in the group
- All your data on one drive, so backups matter
- Gen4 speed is wasted in Gen3-only slots
Who it’s for: creators and heavy gamers with a single-slot laptop and a big library.
KingSpec 1TB M.2 NVMe PCIe Gen4
The KingSpec 1TB listing states up to 7400 MB/s read, 3D NAND flash, a “Championship Edition” name, and a use for PS5, gaming PCs and laptop upgrades. Its stated read speed is higher than the Samsung and Crucial 1TB drives, although the title gives no write speeds, no endurance figure and no mention of DRAM or HMB.
Those omissions matter. Read speed is the headline number, but sustained write speed, behavior when the cache fills and endurance determine how the drive feels during big game installs and file transfers. The listing is the place to look for them. If they are missing there too, treat that as a reason for caution and weigh buyer feedback carefully.
It sits in the Budget tier, which makes it attractive if you just want a lot of Gen4 space for less. The “Ideal for PS5” wording suggests it is aimed at the console upgrade crowd, so double-check that it is a bare drive and not a model with a bundled heatsink that could be too tall for your laptop.
Pros
- Budget tier with a high stated read speed
- Clear 1TB size for light to moderate libraries
- Marketed for laptops and PCs, not just consoles
Cons
- No write speed or endurance figures in the title
- Brand has less name recognition than Samsung or Crucial
- Check the listing for heatsink details
Who it’s for: cost-conscious upgraders who will read the full product page before buying.
KingSpec 2TB M.2 NVMe PCIe Gen4
The 2TB KingSpec uses the same title format as the 1TB, with the same 7400 MB/s read figure. The extra terabyte puts it in the Mid-range tier, alongside the Samsung 2TB, and the price comparison between the two is the whole story: if the KingSpec costs noticeably less on the day, it earns a look.
When two drives at the same capacity list similar speeds, the differences that matter are the ones that titles rarely mention: warranty length, endurance rating, controller and flash type, and whether the drive includes a DRAM cache. Make a short list of those items and fill it in from each product page. The drive that documents more of them is easier to trust.
A practical tip for laptop upgraders: buy from a seller with a clear return window, then confirm that the drive shows up in the laptop’s BIOS and that a quick copy of a large file runs smoothly. If it does not, send it back while you still can.
Pros
- 2TB capacity at a Mid-range tier
- High stated read speed
- Same family as the 1TB for upgrading later
Cons
- Missing write and endurance details in the title
- Smaller brand footprint than Samsung or Crucial
- Same heatsink question as the 1TB
Who it’s for: buyers who want 2TB and are comparing a lesser-known brand against Samsung on price.
Crucial P310 1TB with Heatsink
The Crucial listing is titled as a 2280 1TB PCIe Gen4 NVMe gaming and PS5 SSD with a heatsink, up to 7,100 MB/s, compatible with PlayStation 5, laptops and desktops, part number CT1000P310SSD5-01. The word “heatsink” is the thing to examine closely. The title pitches it for PS5 and desktops as well as laptops. A heatsink adds height, and in a laptop with a tight bay it can stop the drive from fitting at all.
Here is how to decide: find your laptop’s service manual, look for the clearance above the M.2 slot, and compare it with the height on the listing page. If the manual says the drive sits under a metal cover or a thermal pad, assume a bare drive is the safer choice. If you have a spare slot with generous clearance, the heatsink can help with sustained transfers.
The drive is in the Budget tier, so it appeals on price, but the heatsink makes it riskier as a laptop buy than the bare Samsung and KingSpec drives. If you cannot confirm clearance, skip it.
Pros
- Budget tier with a named brand and part number
- Heatsink may help sustained transfers where there is room
- Works in PS5, laptops and desktops according to the title
Cons
- Heatsink may not fit under a laptop’s cover
- Stated speed is the lowest of the group
- Only the 1TB size is listed
Who it’s for: buyers with a laptop that has confirmed clearance, or someone who may later move the drive to a console or desktop.
Lexar 4TB NM790 with Heatsink
The Lexar listing states 7400/6500 MB/s read and write, M.2 2280, PCIe Gen 4×4, compatible with PS5, gamers and content creators, PCs and laptops, SLC cache, a single-sided design and a model number. It also says “with heatsink.” That combination deserves a careful read: a single-sided design is a plus for laptop compatibility, but a heatsink raises the height.
The title gives both read and write figures, which is more useful than the read-only figures on most of the other listings. The 6,500 MB/s write figure is a headline number that usually applies only while the drive’s SLC cache has room. Sustained writes of large files can drop once the cache fills, and the title does not say by how much.
As a 4TB drive it is in the Premium tier, alongside the Samsung 4TB. If you want the capacity and your laptop cannot take a heatsink, check whether the listing offers a bare version, or compare it with the Samsung 4TB. Confirm the dimensions and the laptop’s clearance before ordering.
Pros
- 4TB capacity with read and write speeds in the title
- Single-sided design noted
- SLC cache named in the title
Cons
- Heatsink may not fit in a laptop
- Premium tier price
- Write speed likely drops once the cache fills
Who it’s for: content creators with a roomy laptop slot or a desktop and console to share the drive with.
How we picked these
The Editorial team built this guide from published specifications, manufacturer documentation and buyer reviews. Nobody on the team used or measured these units. No drive was installed in a laptop, run through speed software or warmed up by anyone here, and every number labeled “up to” is a manufacturer claim from the listing title.
The seven drives come from the listings supplied for this keyword. Our screen was simple: M.2 2280 form factor, PCIe Gen4 NVMe, a laptop-compatible description, and enough information in the title to explain what the drive is. Beyond that, we grouped drives by capacity, because comparing a 1TB drive to a 4TB drive on price tells you nothing.
The gaps are as important as the facts. Several titles omit endurance ratings, warranty length and thermal behavior. We flagged those gaps instead of filling them with guesses. For anything on the “check the listing” list, treat the product page and the maker’s documentation as the final word.
Heatsink or bare drive?
Many laptops already cool the M.2 slot with a thermal pad pressed against a metal plate or the chassis. In that case, adding a drive with its own tall heatsink can interfere with the plate, and a bare drive is the intended choice. On a desktop motherboard or a PS5, the opposite is true: a heatsink is often required or recommended.
Two listings here include heatsinks (Crucial P310 and Lexar NM790), and the other five are bare drives. If your laptop has clearance, you do not lose anything by choosing a heatsink model, but if it does not, the drive will not seat properly. Never force a drive into a slot, and do not remove a laptop’s thermal pad without reading the manual.
Thermal throttling in a laptop usually comes from the whole chassis being hot, not only the SSD, so the biggest gain is often from keeping vents clean and the laptop on a hard surface.
Speed numbers versus real laptop use
All seven drives list stated read speeds between 7,100 and 7,400 MB/s, a spread of about 4 percent. In real use, you are unlikely to notice that difference. Game loading times depend on the CPU, the graphics driver, the engine and file layout, and the gap between two fast Gen4 drives is small compared with the gap between a Gen4 drive and an older SATA drive.
Here is a simple estimate. Copying a 100 GB game install at a sustained 3,000 MB/s takes about 33 seconds, and at 1,500 MB/s about 67 seconds. Sustained speeds are almost always below peak figures, so use those lower numbers for planning. The real difference you will feel is when a drive runs out of cache and drops to a few hundred MB/s, which can turn a one-minute copy into several minutes.
That is why buyers should prefer drives whose listings discuss cache behavior and endurance, and why a name with a longer warranty can be worth a small premium.
Moving your data safely
Back up personal files before you start. Then choose between cloning and a fresh install. Cloning copies everything to the new drive and is faster for people who want the exact same setup, but it needs an external enclosure or a second slot so both drives are connected. Our write-up of a spare NVMe enclosure explains how to turn an old drive into external storage afterwards, which is a good way to reuse the drive you remove.
For the physical swap, follow your laptop manufacturer’s service manual. In general terms: shut down fully, unplug the charger, disconnect the internal battery if the manual says to, ground yourself before touching components, and hold the drive by its edges. Do not use force. If any step is unclear, or the laptop is under warranty and you are unsure how an upgrade affects it, contact the manufacturer or a qualified technician.
If you plan to keep the old drive as portable storage, our overview of what to look for in an external gaming SSD explains the trade-offs between enclosure speeds and drive types.
Upgrade mistakes that cost a weekend
- Buying before checking the slot. Confirm length, interface and clearance in the service manual.
- Choosing a heatsink drive for a laptop by default. Heatsink models are designed for open spaces.
- Chasing speed instead of capacity. A larger drive solves more real problems than a faster one.
- Skipping backups. Drive swaps are low risk, but a failed clone with no backup is not.
- Ignoring warranty terms. Check whether opening the case affects coverage.
- Filling the drive to the brim. Leaving 10 percent free helps with updates and sustained writes.
Which drive to buy
For a bare, name-brand upgrade with room to grow, pick the Samsung 990 EVO Plus in the capacity you need: 1TB for light libraries, 2TB for most players and 4TB for heavy users. For a lower price on a bare drive, the KingSpec 1TB or 2TB are the options to read closely. Choose the Crucial P310 or Lexar NM790 only after you have confirmed that a heatsink fits. And if you will not buy a drive until you have checked your slot, you have already done the most useful part of this guide.
If you find your model cannot take an upgrade and you start weighing a replacement, our guide to the best time to buy a gaming laptop covers seasonal sales patterns.
Frequently asked questions
Will any M.2 NVMe SSD fit my gaming laptop?
No. Check four things before buying: the slot length (most laptops take M.2 2280, which all seven drives here list), the interface the slot supports, whether the slot has height clearance for a heatsink, and whether the drive is single-sided. Laptop manuals and the manufacturer’s support pages list the supported drive types. A mismatch usually means the drive will not fit or will run slower than advertised, so confirm before you open the case.
Do I need a drive with a heatsink in a laptop?
Often you should not use one. Gaming laptops usually have a thin metal cover or thermal pad over the M.2 slot, and a drive that ships with a tall heatsink may not fit under it. Two listings here, the Crucial P310 and the Lexar NM790, include heatsinks in their titles. Check your laptop’s service manual or the manufacturer’s upgrade notes first. If the clearance is tight, choose a bare drive and reuse the laptop’s own thermal cover.
Is a Gen4 SSD worth it if my laptop only has Gen3 slots?
Gen4 drives are generally backward compatible with Gen3 slots, but they will run at the slower Gen3 speed, so you pay for performance you cannot use. In game loading, the difference between fast drives is often small anyway, because loading depends on the CPU, the game engine and storage latency, not only peak speeds. A Gen4 drive can still be a sensible buy if you may move it to a newer machine later.
How do I move my games to the new drive?
You can clone the old drive with imaging software, or do a fresh Windows install and re-download your games. Cloning needs both drives connected at the same time, which usually means an external enclosure. A fresh install is cleaner but takes longer. Whichever method you pick, back up personal files first, follow the software vendor’s instructions, and keep the old drive untouched until you confirm the new one boots and your files are intact.
Will upgrading the SSD void my laptop warranty?
It depends on the manufacturer and the laptop model. Some brands treat storage upgrades as user-serviceable and explicitly allow them, while others void coverage if a seal is broken. Read your warranty terms and the support page for your exact model, or ask the manufacturer’s support team before opening the case. If you are unsure, a professional technician can do the work and advise on warranty questions.
