Which is better, TeamGroup Z540 1TB or WD Blue SN5100 1TB? July 2026 side-by-side with prices, specs, and verdict.
Cross-generation comparisons reveal whether you're paying for peak speed or sustained value. TeamGroup Z540 1TB vs WD Blue SN5100 1TB at 1 TB is a perfect lens for that question.
Hardware-wise, the TeamGroup Z540 1TB runs on Phison's E26 silicon, which kicked off the consumer Gen 5 era and typically requires a heatsink. The WD Blue SN5100 1TB pairs the SanDisk controller.
At a 37% price gap, the TeamGroup Z540 1TB needs to be measurably better in your specific use case to justify the spend. For gaming and general PC use, the WD Blue SN5100 1TB's lower $/TB tilts the value equation decisively in its favor.
On sequential reads the TeamGroup Z540 1TB pulls ahead by 5,800 MB/s (12,400 MB/s versus 6,600 MB/s). That matters for moving large files but rarely shows up in game loads.
Write speeds skew toward the TeamGroup Z540 1TB: 11,800 MB/s sustained against 5,400 MB/s. Content creators feel this; gamers do not.
TeamGroup Z540 1TB bundles a DRAM cache chip; WD Blue SN5100 1TB is DRAM-less. This sounds like a big deal but reviewers have been arguing for years about whether it actually matters in consumer use. For most workloads, no.
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 WD Blue SN5100 1TB wins this matchup on $/TB. Generational difference matters mainly for sequential-heavy workloads. The TeamGroup Z540 1TB's 12,400 MB/s read beats WD Blue SN5100 1TB's 6,600 on paper, though in practice both feel identical loading games. Video editors will gravitate toward the TeamGroup Z540 1TB for its write headroom (11,800 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: the TeamGroup Z540 1TB ranks #6 of 6 Gen 5 1 TB drives we track by $/TB, while the WD Blue SN5100 1TB ranks #1 of 4 Gen 4 1 TB drives. That puts at least one of them near the top of the value table — a reasonable head-to-head to be choosing from.
As of July 27, 2026, these tracked drives undercut both the TeamGroup Z540 1TB and WD Blue SN5100 1TB on $/TB:
Lean toward the TeamGroup Z540 1TB when meaningfully faster reads (12,400 MB/s), higher sustained writes (11,800 MB/s), and a dedicated DRAM cache chip top your priority list. The TeamGroup Z540 1TB captures the value tier well: same NAND class as flagships, paired with a DRAM-less controller that costs less and uses HMB for the address-mapping table.
Lean toward the WD Blue SN5100 1TB when the lower retail price ($182 vs $290), and better $/TB economics ($182.00/TB) top your priority list.