Western Digital SSD
The 8TB capacity and 7200 MB/s read speeds make this PCIe 4.0 NVMe drive a top-tier PS5 expansion option, backed by a 4800 TBW endurance rating. Its officially licensed status and optimized heatsink ensure a worry-free fit in the console's M.2 slot, with a 4.8/5 rating from over 10,800 buyers. Best for PS5 owners who want to store a large game library without juggling transfers.
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Snapshot
The 30-Second Version
The WD_BLACK SN850P 8TB is the biggest officially licensed PS5 storage expansion you can buy, and it delivers 7,200 MB/s read speeds with a pre-installed heatsink that fits the console perfectly. It's expensive at USD 1,500 to USD 1,739 depending on the retailer, but owners rate it 4.8 stars across nearly 11,000 reviews for a reason. If you want to install your entire game library and never delete anything again, this is the drive. If you're on a budget or don't need 8TB, the 2TB version gets you the same performance for a fraction of the cost.
Pros & Cons
Pros
- 8TB capacity puts it in the 98th percentile, basically unmatched for a single M.2 drive 98th
- Officially licensed for PS5 with a pre-installed heatsink that fits the bay perfectly 96th
- 7,200 MB/s read and 6,600 MB/s write speeds exceed PS5 requirements by a wide margin 96th
- 1,200K random read and write IOPS, among the best we've seen in this category 87th
- 4,800 TBW endurance rating means you can write a ton of data before it wears out
- 4.8 out of 5 stars across 10,809 reviews, owners genuinely love this thing
Cons
- Price is steep, and the 8TB version especially commands a premium
- Portable use is a weak spot at the 25th percentile, this is not a drive for on-the-go
- Performance gains over the PS5's internal drive are marginal in most games
- Endurance is solid but not class-leading at the 71st percentile
- Some owners report performance variability compared to the original SN850
What owners think
The Word on the Street
The proof
Performance
The headline numbers are 7,200 MB/s sequential read and 6,600 MB/s sequential write. For context, the PS5's internal drive hits around 5,500 MB/s, so this is comfortably faster than what the console ships with. In practice, that translates to load times that are either identical to or slightly better than the internal drive. You won't see a night-and-day difference in most games, but you also won't see any slowdown from running games off the expansion slot. That's the real win here: it's not about being faster, it's about being just as fast while adding 8TB.
Random performance is where this drive really flexes. 1,200K random read IOPS and 1,200K random write IOPS put it in the 96th percentile for random performance in our database. That's one of the best on the market right now. For a PS5, random IOPS matter less than sequential speeds since games are optimized for the console's architecture, but if you ever pull this drive out and use it in a PC, you'll feel the difference in everything from boot times to loading large applications. The DRAM cache and Western Digital's in-house controller keep things snappy under sustained loads too.
Specifications
Full Specifications
Drive
| Capacity | 8000 |
| Form Factor | M.2 |
| Interface | PCIe 4.0 x4 |
| Protocol | NVMe |
| PCIe Generation | 4 |
| External | No |
Performance
| Sequential Read (MB/s) | 7200 |
| Sequential Write (MB/s) | 6600 |
| Random Read (IOPS) | 1200000 |
| Random Write (IOPS) | 1200000 |
Hardware
| DRAM Cache | Yes |
| Controller | Western Digital |
Reliability
| Endurance (TBW) | 4800 |
| MTBF (hours) | 1750000 |
Features
| Heatsink | Yes |
vs Competition
The SN850P's biggest competition comes from Samsung's 9100 PRO and Crucial's T710. The Samsung 9100 PRO is a PCIe 5.0 drive, which means it's technically faster on paper, but the PS5 only supports PCIe 4.0, so that extra speed is wasted in a console. In a PC, the 9100 PRO would pull ahead, but you'd also pay more and deal with PCIe 5.0 thermals. The Crucial T710 is another strong PCIe 4.0 option with similar speeds, but it doesn't come with the PS5-specific heatsink or the official licensing, so you're on your own for fitment and compatibility.
The Kingston Fury Renegade and Seagate FireCuda 530R are both solid alternatives that undercut the SN850P on price. The FireCuda 530R in particular has a reputation for reliability and comes with a heatsink option, but again, it's not officially licensed for PS5. That might not matter to everyone, but if you've ever wrestled with a third-party heatsink that's a millimeter too tall for the PS5's bay, you'll appreciate what Western Digital is offering here. The trade-off is clear: you pay more for the SN850P, but you get guaranteed compatibility and a drive that's been tested specifically for this console.
| Spec | Western Digital SSD | Samsung 9100 PRO | Crucial T710 | Kingston Fury Renegade SFYRDK/2000G | Seagate FireCuda 530R | SanDisk Optimus GX PRO 8100 8100 |
|---|---|---|---|---|---|---|
| Capacity | 8TB | 8TB | 4TB | 2TB | 4TB | 8TB |
| Form Factor | M.2 | M.2 2280 | M.2 2280 | M.2 2280 | M.2 2280 | M.2 2280 |
| Interface | PCIe 4.0 x4 | PCIe 5.0 x4 | PCIe 5.0 x4 | PCIe 4.0 x4 | PCIe 4.0 x4 | PCIe 5.0 x4 |
| Seq Read | 7,200 MB/s | 14,800 MB/s | 14,500 MB/s | 7,300 MB/s | 7,400 MB/s | 14,900 MB/s |
| Nand Type | - | TLC | TLC | TLC | TLC | TLC |
| Dram Cache | true | true | false | true | false | false |
| Endurance | 4800 TBW | 4800 TBW | 2400 TBW | 2000 TBW | 5050 TBW | 4800 TBW |
| Compare | Compare | Compare | Compare | Compare |
| Product | Speed | Random | Feature | Capacity | Endurance | Social Proof |
|---|---|---|---|---|---|---|
| Western Digital SSD | 86.5 | 95.7 | 84.2 | 98.2 | 70.5 | 96.3 |
| Samsung 9100 PRO Compare | 98.9 | 99.8 | 99.8 | 98.2 | 86 | 96.3 |
| Crucial T710 Compare | 98.7 | 98.8 | 85.4 | 92.9 | 86 | 82.3 |
| Kingston Fury Renegade SFYRDK/2000G Compare | 92.6 | 93.4 | 93.7 | 78.6 | 94.1 | 96.3 |
| Seagate FireCuda 530R Compare | 92.2 | 96.2 | 53.4 | 92.9 | 95.7 | 90.1 |
| SanDisk Optimus GX PRO 8100 8100 Compare | 98.7 | 99.1 | 88.8 | 98.2 | 87.9 | 51.7 |
Price
Value & Pricing
Let's talk money, because this is where things get real. The 8TB SN850P runs between USD 1,500 and USD 1,739 across US retailers, with a spread of USD 239 depending on where you shop. That's a meaningful gap, so if you're set on this drive, it pays to check both listings. Newegg and Amazon both carry it, and the price difference between them could cover a couple of new games.
Is it worth it? That depends on how much you value convenience. Per terabyte, you're paying a premium over smaller drives. A 2TB SN850P costs a fraction of this, and you could buy multiple smaller drives for less money total. But you can only install one M.2 drive in a PS5 at a time. So the question isn't really about dollars per terabyte, it's about whether you want to never think about storage again. If you're the type who keeps 50+ games installed and hates deleting anything, the math works out. If you're fine rotating a handful of games, save your money and get the 2TB version.
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Overview
The WD_BLACK SN850P is Western Digital's officially licensed storage expansion for the PlayStation 5, and the 8TB version we're looking at is basically the nuclear option. Most PS5 owners are out there debating whether 1TB or 2TB is enough. This thing laughs at that conversation. You're getting 8TB of PCIe 4.0 NVMe storage with a heatsink designed specifically to slot into the PS5's M.2 bay without any fuss.
Who's this for? Someone who's tired of the storage shuffle. You know the drill: delete a game to make room for a new one, re-download it three months later when you want to replay it, repeat forever. With 8TB, you can keep your entire library installed and still have room for whatever's coming next. The drive sits in the 98th percentile for capacity in our database, which is a fancy way of saying almost nothing else on the market offers this much space in a single M.2 stick.
What makes it interesting beyond the sheer size is the official licensing. Sony's PS5 has specific requirements for expansion drives: PCIe 4.0, minimum 5,500 MB/s read speed, and a heatsink that fits the bay. The SN850P checks all those boxes out of the box. No measuring heatsinks, no worrying about firmware compatibility. You open the PS5, pop this in, format it, and you're done. That peace of mind is worth something, especially when you're spending this kind of money.
Common Questions
Q: How fast is this drive in real-world PS5 use?
The SN850P hits 7,200 MB/s sequential read and 6,600 MB/s sequential write, which is well above Sony's 5,500 MB/s minimum requirement. In practice, games load at least as fast as they do from the PS5's internal drive. You won't see dramatic improvements in load times, but you also won't see any slowdown from running games off the expansion slot.
Q: Does the heatsink actually fit in the PS5?
Yes, and that's one of the main reasons to buy this over a generic drive. The heatsink is designed specifically for the PS5's M.2 bay, so it slides in without any clearance issues. The drive is officially licensed by Sony, which means it's been tested for compatibility with the console's firmware and physical dimensions.
Q: Is the 8TB version worth the extra money over the 2TB?
It depends on your gaming habits. If you keep a large library installed and hate deleting games to make room, the 8TB version eliminates that problem entirely. But per terabyte, you're paying a premium. The 2TB SN850P offers the same speeds and compatibility for much less money, so if you're fine rotating a handful of games, the smaller drive is the smarter buy.
Q: Can I use this drive in a PC instead of a PS5?
Absolutely. It's a standard M.2 2280 PCIe 4.0 NVMe drive, so it'll work in any compatible motherboard. The random performance is excellent at 1,200K IOPS, which puts it among the best PCIe 4.0 drives we've tested. Just keep in mind that you're paying for the PS5 licensing and heatsink, so if you're building a PC, a drive like the Crucial T710 or WD's own SN850X might give you similar performance for less.
Who Should Skip This
If you're a PC builder, you should probably look elsewhere. The SN850P is a great drive, but the PS5 licensing and heatsink add cost that doesn't benefit you. The Crucial T710 or Samsung 9100 PRO will give you comparable or better performance for less money in a PC context. The 9100 PRO especially makes sense if your motherboard supports PCIe 5.0, since the SN850P tops out at PCIe 4.0.
Budget-conscious PS5 owners should also think twice. The 2TB SN850P delivers the same speeds and compatibility at a much lower price, and for most people, 2TB is plenty. If you're the type who plays one or two games at a time and deletes them when you're done, spending USD 1,500+ on 8TB is overkill. Save the money and put it toward games instead. And if you need portable storage, this isn't the drive for you at all. Its portable score sits at the 25th percentile, so look at an external SSD or a portable NVMe enclosure instead.
Verdict
If you're a PS5 owner who wants maximum storage and zero hassle, the SN850P 8TB is the obvious choice. It's the biggest officially licensed drive you can buy, it installs in minutes, and it performs at least as well as the console's internal storage. The 4.8-star rating across nearly 11,000 reviews tells you everything you need to know about how owners feel. This is a drive that just works.
For PC users, the calculus shifts. The SN850P is still a great PCIe 4.0 drive with excellent random performance, but you're paying a premium for the PS5 branding and heatsink that you might not need. If you're building a workstation or gaming PC, the Crucial T710 or even the original SN850X will give you similar performance for less money. And if you're on a budget, the 2TB SN850P gets you the same speeds and compatibility at a much more palatable price. The 8TB version is a luxury purchase, but it's a luxury that delivers exactly what it promises.