Capacity
Samsung 990 PRO 4TB with heatsink4000 GB
Samsung 990 PRO 1TB1000 GB
SIDE BY SIDE
Compare
2 / 4 products
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 PRO 4TB with heatsink4 GB
Samsung 990 PRO 1TB1 GB
Cache arrangement
Samsung 990 PRO 4TB with heatsinkLPDDR4
Samsung 990 PRO 1TB1 GB DRAM
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 PRO 4TB with heatsinkMZ-V9P4T0CWRemove | Samsung990 PRO 1TBMZ-V9P1T0BWRemove |
|---|---|---|
| Capacity | 4000 GB | 1000 GB |
| DRAM cache | 4 GB | 1 GB |
| Endurance | 2400 TBW | 600 TBW |
| Random read, up to | 1600000 IOPS | Unknown |
| Factory heatsink | Yes | Unknown |
| Drive height, up to | 8.88 mm | Unknown |
| Cache arrangement | LPDDR4 | 1 GB DRAM |
| Shop offers | No verified offers yet | No verified offers yet |
Share this comparison with its browser address. A missing value is not zero. On small screens, scroll within the table.