Side-by-side: Samsung 990 PRO 2TB ($219) vs WD_BLACK SN850X 2TB ($199). $/TB winner, specs, real-world picks for May 2026.
Gen 4 at 2 TB is one of the most contested SSD segments in 2026, and Samsung 990 PRO 2TB versus WD_BLACK SN850X 2TB captures that competition well. The decision rarely comes down to peak speeds — both drives saturate typical workloads.
Hardware-wise, the Samsung 990 PRO 2TB runs on the in-house Samsung Pascal — engineered specifically for the 990 PRO at 8nm. 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 $10.00/TB ($99.50/TB versus $109.50/TB). Not a huge gap, but enough to be the tiebreaker if performance is similar.
For PS5 expansion, both are PCIe Gen 4 M.2 2280 drives that meet Sony's minimum spec (7,300 MB/s read). The console can't take advantage of speeds beyond that, so save money by choosing the WD_BLACK SN850X 2TB. Note for handheld gamers: M.2 2280 is the desktop/laptop standard. Steam Deck and the ROG Ally line need 2230 drives — neither Samsung 990 PRO 2TB nor WD_BLACK SN850X 2TB fits without modification.
Among consumer SSD makers, Samsung's PRO series consistently scores highest on long-term reliability surveys (Backblaze, Puget Systems Q1 2026 data).
Go with the WD_BLACK SN850X 2TB for the lower retail price ($199 vs $219), and better $/TB economics ($99.50/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.