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Solidigm's P41 Plus is a QLC-based SSD aimed squarely at the value end of the market. Featuring a DRAM-less design, it uses 144-layer NAND and a 4-channel controller. With the 1TB version coming it at just £70, is this drive worth picking up?
The P41 Plus comes in three capacities; entry-level 512GB, 1TB (the drive we are reviewing here) and a flagship 2TB model. The P41 Plus uses a combination of a Silicon Motion SM2269XT controller (4-channel PCIe Gen 4 x4) and Solidigm 144-layer 3D QLC NAND. It's a DRAMless design using Host Memory Buffer technology instead.
Solidigm rates the Sequential read/write performance of the 1TB P41 Plus as up to 4,125MB/s and 2,950MB/s respectively. The 512GB model is rated at up to 3,500MB/s for reads & 1,625MB/s for writes while the 2TB drive gets the same read rating as the 1TB model but with a faster write speed of up to 3,325MB/s.
As for 4K random performance, the 1TB P41 Plus is rated as up to 225,000 IOPS for reads and 520,000 IOPS for writes. The 2TB drive gets up to 390.000 IOPS and up to 540,000 IOPS for reads and writes respectively. The 512GB drive makes do with 115,000 IOPS reads and 390,000 IOPS writes.
The endurance of the 1TB drive is rated at 400TBW and the drive is backed by a 5-year warranty.
Physical Specifications:
- Usable Capacities: 1TB
- NAND Components: Solidigm 144-layer 3D QLC.
- NAND Controller: Silicon Motion SM2269XT.
- Cache: None/HMB.
- Interface: PCIe 4.0 x4, NVMe 1.4.
- Form Factor: M.2-2280.
- Dimensions: 80 x 20 x 2.2mm.
Firmware Version: 001C.
