Samsung’s launch of the 990 EVO M.2 2280 SSD seems to be imminent, as official product pages with specs went stay in sure areas a couple of days again earlier than getting pulled down.
Probably the most fascinating side the 990 EVO shouldn’t be the claimed speeds, however the truth that it may possibly function in both Gen 4 or Gen 5 modes with totally different variety of lanes. The lately launched cellular platforms from each AMD and Intel use Gen 4 lanes for the storage subsystem. Nonetheless, with progress in expertise it’s inevitable that this may transfer to Gen 5 sooner or later. In the mean time, thermal constraints in cellular programs could stop pocket book producers from entering into for desktop Gen 5 speeds (8 – 14 GBps). A pretty possibility for such instances could be to maneuver to a two-lane Gen 5 implementation that will assist in retaining the identical Gen 4 x4 bandwidth functionality, however reduce down on the BOM price by lowering the variety of pins / lane rely on the host aspect. It seems that Samsung’s 990 EVO is a platform designed with such a situation in thoughts.
PCIe PHYs / controllers have backward compatibility, and the 990 EVO’s SSD controller incorporates a 4-lane Gen 5 controller and PHY. Throughout the coaching part with the host, each the hyperlink bandwidth and lane rely may be negotiated. It seems that the SSD is configured to promote Gen 5 speeds to the host if solely two lanes are energetic.
Samsung seems to be advertising solely 1TB and 2TB capacities of the 990 EVO. Primarily based on the product photographs on-line, the fashions look like single-sided models (making them suitable with a greater diversity of cellular platforms). The flash packages look like 1TB every, and the EVO moniker / commercial of Host Reminiscence Buffer help / controller package deal markings within the product photographs factors to a DRAM-less SSD controller – the Piccolo S4LY022. The quoted efficiency numbers seem low for a 176L / 236L V-NAND product. TechPowerUp believes that these SSDs are utilizing an up to date V6 (133L, termed V6 Prime) with higher effectivity and yields in comparison with the common V6.
| Samsung 990 EVO Specs | ||||
| Capability | 1 TB | 2 TB | ||
| Controller | Samsung S4LY022 Piccolo | |||
| NAND Flash | Samsung 7th Gen. V-NAND (176L 3D TLC) | |||
| Type-Issue, Interface | Single-Sided M.2-2280, PCIe 4.0 x4 / 5.0 x2, NVMe 2.0 | |||
| Sequential Learn | 5000 MB/s? | 5000 MB/s | ||
| Sequential Write | 4200 MB/s? | 4200 MB/s | ||
| Random Learn IOPS | 680K | 700K | ||
| Random Write IOPS | 800K? | 800K | ||
| SLC Caching | Sure | |||
| TCG Opal Encryption | Sure | |||
| Guarantee | 5 years | |||
| Write Endurance | 600 TBW 0.3 DWPD |
1200 TBW 0.3 DWPD |
||
Samsung can also be touting much-improved energy effectivity, with switch charges being 2 – 3x per Watt in comparison with the 970 EVO. The Piccolo controller’s 5nm fabrication course of and the V6 Prime’s effectivity enhancements have a major say in that side.
Pricing and concrete launch dates for the 990 EVO aren’t accessible but. The delta in specs for the 1TB and 2TB fashions will likely be up to date within the desk above as soon as the drives are formally introduced.
