Side-by-side: Crucial T710 2TB ($435) vs WD_BLACK SN850X 2TB ($348). $/TB winner, specs, real-world picks for July 2026.
This is a generational matchup at 2 TB: the older-gen drive offers proven reliability and better $/TB, while the newer-gen sibling brings raw bandwidth that most users never tap.
Hardware-wise, the Crucial T710 2TB runs on an SMI SM2508 controller that drew industry attention in 2024 for finally taming Gen 5 thermals. The WD_BLACK SN850X 2TB pairs WD's G2 controller — manufactured by SanDisk and tuned for low-latency gaming workloads.
Prices favor the WD_BLACK SN850X 2TB by $43.50/TB ($174.00/TB versus $217.50/TB). Not a huge gap, but enough to be the tiebreaker if performance is similar.
In the read department, the Crucial T710 2TB leads by roughly 7 GB/s. The difference is more academic than practical for typical use, but it does matter for video editors moving multi-GB project files.
Write performance separates them too. The Crucial T710 2TB sustains 14,000 MB/s writes versus 6,600 MB/s for the WD_BLACK SN850X 2TB — a real advantage for video editors and anyone doing heavy file operations.
If this purchase is for a PS5 storage expansion, the comparison flattens — Sony's PCIe Gen 4 controller normalizes both Crucial T710 2TB and WD_BLACK SN850X 2TB to roughly equal in-game load times. The cheaper drive is the smart pick. Comparing across generations always invites the same question: does the bandwidth gap convert into user-visible improvements? Honest answer for the Crucial T710 2TB vs WD_BLACK SN850X 2TB pairing: only for sustained sequential reads of multi-GB files. For content creators routinely rendering 4K or 8K video, the Crucial T710 2TB's 14,000 MB/s sustained write is the deciding factor — multi-GB project files land noticeably faster than on the alternative. Note for handheld gamers: M.2 2280 is the desktop/laptop standard. Steam Deck and the ROG Ally line need 2230 drives — neither Crucial T710 2TB nor WD_BLACK SN850X 2TB fits without modification.
Market context: the Crucial T710 2TB ranks #10 of 11 Gen 5 2 TB drives we track by $/TB, while the WD_BLACK SN850X 2TB ranks #8 of 11 Gen 4 2 TB drives. Neither cracks the top of the value table, so it's worth glancing at the alternatives below before picking either.
As of July 27, 2026, these tracked drives undercut both the Crucial T710 2TB and WD_BLACK SN850X 2TB on $/TB:
Go with the Crucial T710 2TB for meaningfully faster reads (14,500 MB/s), and higher sustained writes (14,000 MB/s). Crucial typically delivers the best $/TB among DRAM-equipped NVMes because Micron sells direct rather than going through brand licensing.
Go with the WD_BLACK SN850X 2TB for the lower retail price ($348 vs $435), and better $/TB economics ($174.00/TB). Among Gen 4 flagships, the SN850X strikes a sweet spot — premium silicon at sub-Samsung pricing, with WD's established RMA process to back it up.