Cache arrangement
Samsung 990 PRO 4TB with heatsinkLPDDR4
Samsung 990 PRO 4TB4 GB DRAM
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The differences at a glance
Manufacturer facts for these exact variants. The order does not declare a performance winner.
Factory heatsink
Samsung 990 PRO 4TB with heatsinkYes
Samsung 990 PRO 4TBUnknown
Drive height, up to
Samsung 990 PRO 4TB with heatsink8.88 mm
Samsung 990 PRO 4TBUnknown
990 PRO 4TB: 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 4TBMZ-V9P4T0BWRemove |
|---|---|---|
| Random read, up to | 1600000 IOPS | Unknown |
| Factory heatsink | Yes | Unknown |
| Drive height, up to | 8.88 mm | Unknown |
| Cache arrangement | LPDDR4 | 4 GB DRAM |
| Shop offers | No verified offers yet | No verified offers yet |
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