Which is faster for gaming?

The SN7100 is far faster. It reads at 7250 MB/s over PCIe 4.0, while the BX500 is capped by SATA at roughly 550 MB/s. Game load times improve most on the SN7100.

Will the SN7100 fit my laptop?

Only if the laptop has an M.2 2280 PCIe slot. The SN7100 is a bare M.2 stick and will not go into a 2.5-inch drive bay. Check your slot before buying.

The SN7100 is rated for 600 TBW of writes. Crucial does not publish a TBW figure for the BX500, so the SN7100 is the safer bet for heavy write use.

Is the SN7100 worth the extra money?

Yes if your system supports PCIe 4.0. You get roughly 13 times the sequential read speed and a published endurance rating. The BX500 only makes sense when SATA is your only option.

Can I use the BX500 in a desktop?

Yes, in any 2.5-inch bay with a free SATA port and power cable. It is a common upgrade for older desktops and laptops that lack M.2 slots.

Does either drive have a DRAM cache?

No. Both are DRAM-less. The SN7100 uses the NVMe host memory buffer to compensate, which helps it stay fast under load.

WD_BLACK SN7100 1TB NVMe SSD vs Crucial BX500 1TB SSD

Buy the WD_BLACK SN7100 if your PC has an M.2 PCIe 4.0 slot and you want speed: it reads at 7250 MB/s and writes at 6900 MB/s. Buy the Crucial BX500 only if you are limited to a 2.5-inch SATA bay or want a cheap drive for an older laptop. The SN7100 was $159.99 on November 2, 2026 and $189.99 on November 6, 2026. No price was given for the BX500.

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