Compare Samsung 990 EVO Plus 1TB and Samsung 990 PRO 1TB: prices, speeds, $/TB. Which to buy in July 2026? Full spec breakdown.
Samsung 990 EVO Plus 1TB vs Samsung 990 PRO 1TB pits two different generations against each other at 1 TB. The question isn't which is faster on paper — that's settled — it's whether the bandwidth gap shows up in your specific workload.
Hardware-wise, the Samsung 990 EVO Plus 1TB runs on Samsung's Piccolo controller — DRAM-less with PCIe 4.0/5.0 dual-mode support. The Samsung 990 PRO 1TB pairs the in-house Samsung Pascal — engineered specifically for the 990 PRO at 8nm.
The Samsung 990 PRO 1TB carries a dedicated DRAM chip for FTL (Flash Translation Layer) mapping; the Samsung 990 EVO Plus 1TB relies on HMB (Host Memory Buffer), borrowing 64 MB from system RAM. The practical gap shows up only under sustained random write loads.
Heading to a PlayStation 5? Both drives drop into the console's M.2 bay and report identical real-world benchmarks since the PS5 caps storage at PCIe 4.0 speeds. The Samsung 990 PRO 1TB wins this matchup on $/TB. The leap from Gen 4 to Gen 5 doubles peak throughput on paper but produces single-digit-percent improvements in game load times, OS boot, and most productivity benchmarks. The Samsung 990 PRO 1TB is the better default unless you have a specific workload that needs the extra lanes. Heavy write workloads — video editing, RAW photo libraries, backup operations — favor the Samsung 990 PRO 1TB's 6,900 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 Samsung 990 EVO Plus 1TB ranks #3 of 6 Gen 5 1 TB drives we track by $/TB, while the Samsung 990 PRO 1TB ranks #3 of 4 Gen 4 1 TB drives. Neither is a value leader right now — if $/TB is your priority, check the cheaper alternatives below before committing.
As of July 27, 2026, these tracked drives undercut both the Samsung 990 EVO Plus 1TB and Samsung 990 PRO 1TB on $/TB:
The 990 EVO Plus uniquely supports both PCIe 4.0 x4 and PCIe 5.0 x2 modes — useful flexibility if you might upgrade motherboard generations.
Pick the Samsung 990 PRO 1TB if you value the lower retail price ($239 vs $244), better $/TB economics ($239.00/TB), and a dedicated DRAM cache chip. Among consumer SSD makers, Samsung's PRO series consistently scores highest on long-term reliability surveys (Backblaze, Puget Systems Q1 2026 data).