Side-by-side: Corsair MP700 PRO XT 2TB ($398) vs Samsung 990 PRO 2TB ($390). $/TB winner, specs, real-world picks for October 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 Corsair MP700 PRO XT 2TB runs on Phison's E28 — the second-gen Gen 5 controller with refined efficiency over the original E26. The Samsung 990 PRO 2TB pairs the in-house Samsung Pascal — engineered specifically for the 990 PRO at 8nm.
Read speeds favor the Corsair MP700 PRO XT 2TB: 14,900 MB/s versus 7,450 MB/s for the Samsung 990 PRO 2TB, a 50% advantage. Sequential-heavy workloads notice; transactional workloads don't.
The Corsair MP700 PRO XT 2TB writes about 46% faster (12,700 MB/s vs 6,900 MB/s). Whether that matters depends entirely on what you write to the drive — gameplay capture and large project saves benefit, browsing and gaming do not.
For PS5 expansion, both are PCIe Gen 4 M.2 2280 drives that meet Sony's minimum spec (7,450 MB/s read). The console can't take advantage of speeds beyond that, so save money by choosing the Samsung 990 PRO 2TB. Comparing across generations always invites the same question: does the bandwidth gap convert into user-visible improvements? Honest answer for the Corsair MP700 PRO XT 2TB vs Samsung 990 PRO 2TB pairing: only for sustained sequential reads of multi-GB files. Heavy write workloads — video editing, RAW photo libraries, backup operations — favor the Corsair MP700 PRO XT 2TB's 12,700 MB/s sustained write speed. Both drives use the 2280 form factor, which is too long for Steam Deck or ROG Ally — you'd need a 2230 variant if either manufacturer offers one, or a dedicated handheld-format drive instead.
Market context: the Corsair MP700 PRO XT 2TB ranks #6 of 11 Gen 5 2 TB drives we track by $/TB, while the Samsung 990 PRO 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 October 26, 2026, these tracked drives undercut both the Corsair MP700 PRO XT 2TB and Samsung 990 PRO 2TB on $/TB:
Go with the Corsair MP700 PRO XT 2TB for meaningfully faster reads (14,900 MB/s), and higher sustained writes (12,700 MB/s). Corsair's MP700 PRO XT brings Phison E28 silicon with optional heatsink variants — flexibility for both spacious desktops and laptops with motherboard clearance issues.
Go with the Samsung 990 PRO 2TB for the lower retail price ($390 vs $398), and better $/TB economics ($195.00/TB). Among consumer SSD makers, Samsung's PRO series consistently scores highest on long-term reliability surveys (Backblaze, Puget Systems Q1 2026 data).