Question 1

What's the price difference between WD_BLACK SN7100 4TB and Crucial P310 4TB?

Accepted Answer

The Crucial P310 4TB costs $519 (129.75 per TB), while the WD_BLACK SN7100 4TB runs $570 (142.50 per TB). The gap is $51, equivalent to about 9% per TB. Prices change weekly; check current Amazon listings before deciding.

Question 2

Does the Crucial P310 4TB's read advantage matter in practice?

Accepted Answer

Specs say yes (7,100 MB/s versus 7,000 MB/s). Real-world testing says rarely. Game load times and OS boots saturate well below either drive's peak read speed. The advantage shows up in sustained sequential reads — large file copies, raw video reads, dataset loads.

Question 3

Will the WD_BLACK SN7100 4TB or Crucial P310 4TB work in my PlayStation 5?

Accepted Answer

Yes to both — both meet Sony's expansion specs (PCIe Gen 4 NVMe, M.2 2280, with a heatsink). The PS5 won't differentiate between them in benchmarks because its internal storage controller throttles to PCIe Gen 4 speeds. Crucial P310 4TB wins this matchup if price is your tiebreaker.

Question 4

How much does the 640 TBW endurance gap actually matter?

Accepted Answer

For most buyers, it doesn't. The WD_BLACK SN7100 4TB's 2,400 TBW versus the Crucial P310 4TB's 1,760 TBW translates to years of additional theoretical lifetime, but consumer drives almost always die from controller failure or firmware issues long before reaching TBW limits.

Question 5

Bottom line: WD_BLACK SN7100 4TB or Crucial P310 4TB?

Accepted Answer

Default recommendation: Crucial P310 4TB. It hits the right balance of price ($129.75/TB), Gen 4 performance, and brand support for the average buyer. The WD_BLACK SN7100 4TB has its place if you need higher sustained write speeds, but that's a narrower use case.

Question 6

Are there cheaper 4 TB SSDs than the WD_BLACK SN7100 4TB and Crucial P310 4TB?

Accepted Answer

Yes. As of July 27, 2026, the Lexar NM790 4TB ($127.50/TB), TeamGroup MP44 4TB ($128.25/TB) all undercut both drives on price per terabyte. Budget drives in this range are typically DRAM-less, which matters only for sustained random-write workloads — for gaming and general use they perform comparably.

WD_BLACK SN7100 4TB vs Crucial P310 4TB

WD_BLACK SN7100 4TB Gen 4

Crucial P310 4TB Gen 4

Verdict: WD_BLACK SN7100 4TB vs Crucial P310 4TB

Real-world use cases

Cheaper 4 TB alternatives to both

$127.50/TB · $510

$128.25/TB · $513

Pick the WD_BLACK SN7100 4TB if...

Pick the Crucial P310 4TB if...

Best value for money

Best for gaming

Best for content creators

Best for PS5