One of Lexar’s newest additions to their vary of gaming merchandise is the NM790 SSD, a PCIe Gen 4 x4 drive providing speeds of as much as 7,400MB/s for reads and 6,500MB/s for writes. With the 4TB mannequin on sale for lower than £200 right here within the UK, is it value choosing up?
The NM790 is available in 4 capacities; 512GB, 1TB, 2TB and the 4TB flagship drive we’re right here. It makes use of a controller that’s new to us within the form of a Maxiotech MAP1602A. The MAP1602A is a 4-channel DRAM-less design controller however not like different DRAM-free controllers, this one has a 2,400 MT/s bus which suggests improved efficiency mixed with higher energy effectivity. Instead of utilizing DRAM, the drive makes use of Host Memory Buffer (HMB) 3.0 know-how (the drive makes use of a small portion of the system reminiscence rather than a devoted DRAM IC) together with Dynamic SLC caching. For the NM790 Lexar has paired up the controller with Longsys branded 232-Layer 3D TLC NAND.
Lexar quotes Sequential efficiency throughout the vary as as much as 7,200MB/s and as much as 4,400MB/s for learn and writes respectively for the 512GB entry-level mannequin whereas the opposite three capacities all have the identical as much as 7,400MB/s learn and as much as 6,500MB/s writes scores. Lexar hasn’t disclosed any random efficiency figures now we have seen however the controller helps as much as 1,000K IOPS for each learn and writes.
The endurance of the 4TB drive is quoted as 3,000TBW and Lexar backs the drive with a 5-year guarantee,
Physical Specifications:
- Usable Capacities: 4TB.
- NAND Components: 232-Layer 3D TLC.
- NAND Controller: Maxiotech MAP1602A 4-channel.
- Cache: none, Host Memory Buffer (HMB) 3.0.
- Interface: PCIe Gen4 x4
- Form Factor: M.2, 2280.
- Dimensions: 80 x 22 x 2.45mm.
- Drive Weight: 6g.
Firmware Version: 12237.
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