Lexar NM790 with Heatsink: One-minute review
The Lexar NM790 with Heatsink is one of the best SSDs for PS5 in its price range. Its 4TB variant in particular is significantly cheaper than the competition, especially when it goes on sale. It also scores well in the internal PS5 benchmark, even beating pricey licensed alternatives like the WD Black SN850P and Seagate Game Drive M.2 SSD for PS5.
If your number one priority is getting a high-capacity option with solid performance at the lowest possible cost, then the Lexar NM790 with Heatsink is the clear winner. That said, there are some significant drawbacks that arise with that reduced price tag. The most important is that this is a dynamic random access memory (DRAM)-less model that uses host memory buffer (HMB) technology, something that you would expect from budget PC SSDs rather than ones made with consoles in mind.
The PS5 does not support HMB and Sony even recommends against fitting HMB drives. This is because it leads to somewhat uneven performance, which is noticeable when you’re copying particularly large files. It can also cause issues in games, though these are far from a complete dealbreaker as the vast majority of titles that I tested ran flawlessly, even the likes of Call of Duty: Black Ops 6.
There was some stuttering in Marvel’s Spider-Man 2, however, namely in a handful of cinematic moments where scenery changed quickly. Assassin’s Creed Valhalla also had the odd hitch, though nothing that rendered either title unplayable or even really spoiled the experience.
Lexar NM790 with Heatsink: Price and availability
- 1TB is $94.99 / £74.99
- 2TB is $159.99 / £129.99
- 4TB is $269.99 / £233
Unlike the seriously overpriced Lexar Play 2280, the Lexar NM790 with Heatsink comfortably undercuts the competition at its going rates. It’s available at Amazon, where the 1TB model will set you back $94.99 / £74.99 – $30 / £25 less than the WD Black SN850X.
The price of the 2TB varies depending on its stock level but is most often found at $159.99 / £129.99 which is a very fair price for what you’re getting. The best value option, however, is the 4TB version which comes in at $269.99 / £233 and has been on sale for as little as $234.95 / £229.49 in the past twelve months.
This drive seems extremely popular, however, so prices do fluctuate week to week. The 4TB model, for example, is currently only available for the absurdly high asking price of $338.92 through a third-party Amazon seller in the US – so avoid purchasing one unless you can find it for around the above figures.
Lexar NM790 with Heatsink: Specs
| Price | $94.99 / £74.99 (1TB) / $159.99 / £129.99 (2TB) / $269.99 / £233 (4TB) |
| Capacity | 1TB / 2TB / 4TB |
| Quoted read speed | 7,400 MB/s |
| Quoted write speed | 6,500 MB/s |
| Durability | 1000TBW (1TB) / 1500TBW (2TB) / 3000TBW (4TB) |
| Warranty | 5-year |
Lexar Play 2280: Design and features
- Looks and feels premium
- Sold with and without a heatsink
- HMB model, so lacks DRAM
The Lexar NM790 with Heatsink has a plain overall design. It comes with a chunky black heatsink fitted out of the box, with some small grooves to give it some texture on the top. Despite its large size, it fits absolutely perfectly in a PS5 or PS5 Slim. Even though this is a more budget-oriented product, nothing about its look or feel seems particularly cheap either.
It comes well-packaged in a compact cardboard box and small plastic tray, which is easy to open and should provide a good level of protection on the move. On the box, you will find instructions on how to access more production information, in addition to warranty or return details, via the Lexar website.
The most notable feature of this drive is the fact it is an HMB model. As I explained above, this means that the drive does not have any DRAM – a small bit of separate memory used to store mapping information. This, in essence, tells your system where to find specific data quickly, improving performance and longevity. With HMB, the host device is meant to be responsible for this function.
This is not the case with the PS5 though, which does not support HMB drives. Sony states that such drives “may experience slower-than-expected performance because the PS5 console does not support HMB”. Even so, HMD models are generally significantly cheaper than those with DRAM and will still function when fitted to a PS5 – so make for solid budget picks.
Lexar NM790 with Heatsink: Performance
- Impressive PS5 benchmark score
- Performs well copying games
- But very occasionally stutters while playing
The Lexar NM790 with Heatsink delivers admirable performance on the whole, but it’s far from consistent.
To give one example, copying a 67.25GB installation of Dishonored 2 to drive from the internal storage took just 22 seconds – while a smaller 59.22GB installation of Warhammer 40,000: Space Marine was fully playable in 26 seconds, four seconds more. This wouldn’t be noticeable in general use but does demonstrate some of the spottier moments associated with HMB drives on PS5.
The largest file I tested, 101.9GB of Far Cry 6, took just 44 seconds to copy to the SSD, while the 80.7GB Remnant 2 took 34 seconds – all good results. Smaller games also copied smoothly and quickly, with a 24.22GB copy of Lego Star Wars: The Force Awakens and 12.93GB installation of Lollipop Chainsaw RePop accomplished in 13 seconds and 6 seconds respectively. A relatively tiny file like the 2.72GB Slime Rancher 2 was then copied in only 2 seconds.
Similarly, good figures were observed copying from the drive back to the internal storage, with Far Cry 6 taking 6 minutes 51 seconds and Remnant 2 5 minutes and 24 seconds. Lego Star Wars: The Force Awakens took just 1 minute and 42 seconds, which is broadly in line with the times for similarly sized games on the more expensive WD Black SN850P. Just bear in mind that these figures are mainly due to the PS5’s internal write speed more than the SSD itself.
The drive also scored impressively well on the PS5’s internal benchmark, clocking in at 6,526MB/s. That’s significantly higher than the WD Black SN850P, just above the Seagate Game Drive M.2 SSD for PS5, and close to the numbers achieved by the seriously pricey Samsung 990 Pro – excellent on the whole.
That said, things aren’t entirely perfect when you dive into games stored on the drive. The vast majority of titles that I tested were completely fine, but there were two exceptions. Exploring the world of Assassin’s Creed Valhalla, I noticed the occasional framerate hitch which was entirely absent when playing on internal storage. Likewise, moments with lots of rapid changes in scenery in Marvel’s Spider-Man 2 (like the bombastic final boss fight) suffered from a few stutters – almost as though the drive was unable to load in assets quickly enough.
In the grand scheme of things, these are very minor problems and in my book are worth the cost savings represented by the Lexar NM790 with Heatsink – but it does mean that if you want a completely flawless experience across the board, you should look elsewhere.
Should I buy the Lexar NM790 with Heatsink?
Buy it if…
Don’t buy it if…
Also consider…
If you want to weigh up the Lexar Play 2280 against some other options, here are two great alternatives.
| Row 0 – Cell 0 | Lexar NM790 with Heatsink | Seagate Game Drive M.2 SSD for PS5 | Samsung 990 Pro |
| Price | $94.99 / £74.99 (1TB) / $159.99 / £129.99 (2TB) / $269.99 / £233 (4TB) | $99.99 / £99.90 (1TB) / $159.99 / £159.90 (2TB) | $169.99 / £155 / AU$265 (1TB) / $289.99 / £283.99 / AU$439 (2TB) |
| Capacity | 1TB / 2TB / 4TB | 1TB / 2TB | 1TB / 2TB / 4TB |
| Quoted read speed | 7,400 MB/s | 7,300 MB/s | 7,450 MB/s |
| Quoted write speed | 6,500 MB/s | 6,000 MB/s | 6,900 MB/s |
| Durability | 1000TBW (1TB) / 1500TBW (2TB) / 3000TBW (4TB) | 1275 TBW (1TB) | 600 TBW (1TB) |
| Warranty | 5-year | 5-year | 5-year |
How I tested the Lexar NM790 with Heatsink
- Tested for over a month
- Tried with a wide range of games
- Compared to other SSD models
I tested the Lexar NM790 with Heatsink for over a month, using it as my primary PS5 SSD at home. During that time I played a wide variety of games, including plenty of Call of Duty: Black Ops 6, Kingdom Come: Deliverance 2, Assassin’s Creed Valhalla, Dragon Age: The Veilguard, Doom Eternal, Sniper Elite: Resistance, and much more.
Throughout the testing period, I was careful to assess the performance of the drive in each game, in addition to a variety of copy tests, and compared my experience with hands-on testing of other models like the WD Black SN850P, Lexar Play 2280, Samsung 990 Pro, and Seagate Game Drive M.2 SSD for PS5.
First reviewed February 2025
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dash.wood@futurenet.com (Dashiell Wood)
