Compare WD_BLACK SN7100 2TB and WD Blue SN5000 2TB: prices, speeds, $/TB. Which to buy in September 2026? Full spec breakdown.
Both the WD_BLACK SN7100 2TB and WD Blue SN5000 2TB sit in the Gen 4 category at 2 TB, so the matchup turns on controller efficiency, cache topology, and current pricing rather than raw class differences.
Hardware-wise, the WD_BLACK SN7100 2TB runs on an A101 controller that replaced the older WD designs in the SN7100 generation. The WD Blue SN5000 2TB pairs the SanDisk controller.
For PlayStation 5 builds, the console's internal M.2 slot tops out around 5,500 MB/s sustained, so both WD_BLACK SN7100 2TB and WD Blue SN5000 2TB hit the same wall — pick whichever is cheaper at the moment you buy. Video editors will gravitate toward the WD_BLACK SN7100 2TB for its write headroom (6,900 MB/s sustained). Project saves and proxies move faster, which compounds across a workday. Heads-up — these are full-length 2280 drives. Steam Deck and most current handhelds require shorter 2230 modules, so check capacity-specific 2230 variants if that's your target platform.
Market context: we track 11 Gen 4 2 TB drives, and by price per terabyte the WD_BLACK SN7100 2TB currently sits #6 while the WD Blue SN5000 2TB sits #4. Neither is a value leader right now — if $/TB is your priority, check the cheaper alternatives below before committing.
As of September 7, 2026, these tracked drives undercut both the WD_BLACK SN7100 2TB and WD Blue SN5000 2TB on $/TB:
Pick the WD_BLACK SN7100 2TB if you value meaningfully faster reads (7,250 MB/s), higher sustained writes (6,900 MB/s), and a higher TBW endurance rating (1,200 TBW).
Pick the WD Blue SN5000 2TB if you value the lower retail price ($300 vs $305), and better $/TB economics ($150.00/TB).