Manufacturer limited warranty: MZ-77E1T0 lists 5 years or TBW limit, whichever comes first; MZ-77Q1T0 lists 3 years or TBW limit, whichever comes first.

A larger cache, higher RPM or higher advertised sequential speed alone does not establish which drive is better for your workload.

Specifications side by side

Show differences only

Manufacturer specifications for MZ-77E1T0 and MZ-77Q1T0
Specification	MZ-77E1T0	MZ-77Q1T0
Manufacturer	Samsung	Samsung
Product family	870 EVO	870 QVO
Model number	MZ-77E1T0	MZ-77Q1T0
Capacity (TB)	1	1
Interface	SATA 6 Gb/s	SATA 6 Gb/s
Form factor	2.5-inch	2.5-inch
Sequential read (up to MB/s)	560	560
Manufacturer limited warranty	5 years or TBW limit, whichever comes first	3 years or TBW limit, whichever comes first
Sequential write (up to MB/s)	530	530

Compatibility and buying checks

Sequential speeds are manufacturer maxima, not measured game load times. Check your PCIe generation, M.2 dimensions and cooling clearance. The lower of the time or endurance limit normally governs a limited SSD warranty.
Compare new and renewed offers separately. The manufacturer specification does not guarantee the warranty or return policy of a marketplace seller.

Reviewed 2026-09-07. Published specifications; no independent benchmark or failure-rate claim.

Reviewed 2026-09-07. Published specifications; no independent benchmark or failure-rate claim.