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Samsung 990 Pro 4TB — PCIe 4.0 · 7450/6900 MB/s · 4TB
Samsung

Samsung 990 Pro 4TB

PCIe 4.0 · 7450/6900 MB/s · 4TB

86
/ 100
From $360
VS
WD Black SN770 4TB · with PS5 heatsink — PCIe 4.0 · 5150/4900 MB/s · 4TB
Western Digital

WD Black SN770 4TB · with PS5 heatsink

PCIe 4.0 · 5150/4900 MB/s · 4TB

86
/ 100
From $400
Specdex verdict

Dead heat — it comes down to priorities.

In our weighted Specdex score, Samsung 990 Pro 4TB lands at 86 and WD Black SN770 4TB · with PS5 heatsink at 86. With scores tied, the decision hinges on which sub-scores matter most to you.

Pick Samsung 990 Pro 4TB if…

  • ✓M.2 NVMe
  • ✓Competitive per-GB cost
  • ✓TBW scales with capacity

Pick WD Black SN770 4TB · with PS5 heatsink if…

  • ✓M.2 NVMe
  • ✓Competitive per-GB cost
  • ✓TBW scales with capacity
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Winner by scenario

Derived from the sub-score breakdown · not a separate test

Endurance & reliability

Tie

Write endurance and long-term dependability

Effectively tied — neither pulls a 2-point weighted lead.

Value for money

Samsung 990 Pro 4TB

Specdex score per dollar at MSRP

Samsung 990 Pro 4TB more score per dollar ($360 vs $400).

Samsung 990 Pro 4TB 86
vs
86 WD Black SN770 4TB · with PS5 heatsink

Score breakdown

Samsung 990 Pro 4TB
86
read 90
write 88
endurance 88
value 84
WD Black SN770 4TB · with PS5 heatsink
86
read 90
write 88
endurance 88
value 84

Specs side-by-side

Samsung 990 Pro 4TB versus WD Black SN770 4TB · with PS5 heatsink — full spec comparison
Spec Samsung 990 Pro 4TB WD Black SN770 4TB · with PS5 heatsink
Interface
PCIe 4.0
PCIe 4.0
Capacity
4TB
4TB
Read/Write
7450/6900 MB/s
5150/4900 MB/s

Samsung 990 Pro 4TB

Pros
  • +M.2 NVMe
  • +Competitive per-GB cost
  • +TBW scales with capacity
Cons
  • −Thermals on Gen 5 drives
  • −DRAM-less models slower under sustained load
  • −Require heatsinks in many systems

WD Black SN770 4TB · with PS5 heatsink

Pros
  • +M.2 NVMe
  • +Competitive per-GB cost
  • +TBW scales with capacity
Cons
  • −Thermals on Gen 5 drives
  • −DRAM-less models slower under sustained load
  • −Require heatsinks in many systems

FAQ: Samsung 990 Pro 4TB vs WD Black SN770 4TB · with PS5 heatsink

Which is better, Samsung 990 Pro 4TB or WD Black SN770 4TB · with PS5 heatsink? +

Both score 86 on our weighted rubric — tied. Your best pick depends on the sub-scores above.

Is Samsung 990 Pro 4TB worth the price? +

At $360, Samsung 990 Pro 4TB delivers a Specdex score of 86 — strongest in read.

Is WD Black SN770 4TB · with PS5 heatsink worth the price? +

At $400, WD Black SN770 4TB · with PS5 heatsink delivers a Specdex score of 86 — strongest in read.

Does Samsung 990 Pro 4TB or WD Black SN770 4TB · with PS5 heatsink last longer? +

Based on our long-term update and support ratings, both ship with multi-year support. Battery and reliability scores are visible in the breakdown above.

Which is the better value, Samsung 990 Pro 4TB or WD Black SN770 4TB · with PS5 heatsink? +

Samsung 990 Pro 4TB — more score per dollar ($360 vs $400). Specdex score per dollar at MSRP.