NAND: CT4000T500SSD5 lists TLC; WDS400T2X0E lists TLC 3D NAND.
Heatsink: CT4000T500SSD5 lists Included; WDS400T2X0E lists Not included.
Sequential read (up to MB/s): CT4000T500SSD5 lists 7000; WDS400T2X0E lists 7300.
Sequential write (up to MB/s): CT4000T500SSD5 lists 6900; WDS400T2X0E lists 6600.

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 CT4000T500SSD5 and WDS400T2X0E
Specification	CT4000T500SSD5	WDS400T2X0E
Manufacturer	Crucial	Western Digital
Product family	T500	Black SN850X
Model number	CT4000T500SSD5	WDS400T2X0E
Capacity (TB)	4	4
NAND	TLC	TLC 3D NAND
Heatsink	Included	Not included
Interface	PCIe 4.0 x4 / NVMe	PCIe 4.0 x4 / NVMe
Form factor	M.2 2280	M.2 2280
Endurance (TBW)	2400	2400
Sequential read (up to MB/s)	7000	7300
Manufacturer limited warranty	5 years or TBW limit, whichever comes first	5 years or TBW limit, whichever comes first
Sequential write (up to MB/s)	6900	6600

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.