Samsung’s PM1743 is a PCIe 5.0 SSD based on an unnamed controller and the company’s latest V-NAND. According to Samsung, it can provide up to 90% better performance compared to the previous generation (PM1743). It also features improved energy efficiency over the predecessor and a degree of security control independent of the host server. Samsung offers the PM1743 in the 2.5-inch U.2 form factor as well as the newer 3-inch E3.S.
| Specifications | Samsung PM1743 | Samsung PM1733 |
|---|---|---|
| Capacity (up to) | 15.36 TB | 15.36 TB |
| Form Factor | U.2/E3.S | U.2 |
| Interface | PCIe 5.0 x4 | PCIe 4.0 x4 |
| Controller | N/A | Samsung S4LR014 |
| NAND Flash | 128-Layer TLC | 96-Layer TLC |
| Sequential Read | 13,000 MB/s | 7,000 MB/s |
| Sequential Write | 6,600 MB/s | 3,500 MB/s |
| Random Read IOPS | 2.5M | 1.5M |
| Random Write IOPS | 250K | 135K |
| Power (Active) | 30W | 20 W |
| Endurance | N/A | 28 PBW |
While the PM1733 predecessor used PCI-Express 4.0 and 96-layer fifth-gen V-NAND, the PM1743 makes use of PCIe 5.0 and 128L sixth-gen NAND. The PCie 5.0 x4 link enables maximum bandwidth rates of 15.76 GB/s and the Samsung PM1743 offers peak sequential read rates of 13GB/s and peak sequential write speeds of 6.6 GB/s. In terms of IOPS, Samsung is claiming that the new drive can reach 2.5M IOPS on random reads and 250K IOPS on random writes.
Furthermore, the PM1743 has been advertised as having a 30% improvement in energy efficiency, although with a higher active power utilization rate than the PM1743, which was rated at 20W. Samsung’s press release attested that they have been teaming up with Intel in order to verify the new drive, possibly with the PCIe 5.0-capable Sapphire Rapids platform.
The PM1743 SSD is available in two sizes including the 2.5-inch U.2 as well as the newer 3-inch E3.S enterprise and data center form factor. This form factor is larger than the U.2, and it has a connector capable of up to 16 lanes of PCIe, although SSDs will not use all lanes. Capacities range from 1.92TB to 15.36TB, which aligns with the PM1733. However, the E3.S form factor ican fit twice as many drives and thus double the storage capacity compared to a U.2 configuration.