Interface
Samsung 990 EVO Plus 1TBPCIe 4.0 ×4 / 5.0 ×2 / NVMe 2.0
Samsung 990 PRO 1TBPCIe 4.0 ×4 / NVMe 2.0
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What changes?
The differences at a glance
Manufacturer facts for these exact variants. The order does not declare a performance winner.
DRAM cache
Samsung 990 EVO Plus 1TBUnknown
Samsung 990 PRO 1TB1 GB
Cache arrangement
Samsung 990 EVO Plus 1TBHMB (Host Memory Buffer)
Samsung 990 PRO 1TB1 GB DRAM
990 EVO Plus 1TB: 1 unknown fields · 990 PRO 1TB: 3 unknown fields. Unknown does not mean absent.
Compare capacity and cache, not just peak speed
Manufacturer speeds are maxima under stated test conditions. They do not show sustained writing after the cache fills. TBW is a write-endurance warranty limit, not a predicted failure date; time limits also apply. Check M.2 length, interface and heatsink clearance in the host manual. Price per TB uses nominal decimal capacity and a confirmed delivered total.
| Specifications | Samsung990 EVO Plus 1TBMZ-V9S1T0BWRemove | Samsung990 PRO 1TBMZ-V9P1T0BWRemove |
|---|---|---|
| Interface | PCIe 4.0 ×4 / 5.0 ×2 / NVMe 2.0 | PCIe 4.0 ×4 / NVMe 2.0 |
| Sequential read, up to | 7150 MB/s | 7450 MB/s |
| Sequential write, up to | 6300 MB/s | 6900 MB/s |
| DRAM cache | Unknown | 1 GB |
| Random read, up to | 850000 IOPS | Unknown |
| Factory heatsink | No | Unknown |
| Drive height, up to | 2.38 mm | Unknown |
| Cache arrangement | HMB (Host Memory Buffer) | 1 GB DRAM |
| Shop offers | €219.00€219.00 / TB · confirmed delivered total | No verified offers yet |
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