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Samsung 990 EVO Plus 1TB — PCIe 4.0/5.0 · 7250/6300 MB/s · 1TB
Samsung

Samsung 990 EVO Plus 1TB

PCIe 4.0/5.0 · 7250/6300 MB/s · 1TB

86
/ 100
From $90
VS
WD Black SN770 8TB — PCIe 4.0 · 5150/4900 MB/s · 2TB
Western Digital

WD Black SN770 8TB

PCIe 4.0 · 5150/4900 MB/s · 2TB

86
/ 100
From $792
Specdex verdict

Dead heat — it comes down to priorities.

In our weighted Specdex score, Samsung 990 EVO Plus 1TB lands at 86 and WD Black SN770 8TB at 86. With scores tied, the decision hinges on which sub-scores matter most to you.

Pick Samsung 990 EVO Plus 1TB if…

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

Pick WD Black SN770 8TB 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 EVO Plus 1TB

Specdex score per dollar at MSRP

Samsung 990 EVO Plus 1TB more score per dollar ($90 vs $792).

Samsung 990 EVO Plus 1TB 86
vs
86 WD Black SN770 8TB

Score breakdown

Samsung 990 EVO Plus 1TB
86
read 90
write 88
endurance 88
value 84
WD Black SN770 8TB
86
read 90
write 88
endurance 88
value 84

Specs side-by-side

Samsung 990 EVO Plus 1TB versus WD Black SN770 8TB — full spec comparison
Spec Samsung 990 EVO Plus 1TB WD Black SN770 8TB
Interface
PCIe 4.0/5.0
PCIe 4.0
Capacity
1TB
▲ 8TB
Read/Write
7250/6300 MB/s
5150/4900 MB/s

Samsung 990 EVO Plus 1TB

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 8TB

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 EVO Plus 1TB vs WD Black SN770 8TB

Which is better, Samsung 990 EVO Plus 1TB or WD Black SN770 8TB? +

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

Is Samsung 990 EVO Plus 1TB worth the price? +

At $90, Samsung 990 EVO Plus 1TB delivers a Specdex score of 86 — strongest in read.

Is WD Black SN770 8TB worth the price? +

At $792, WD Black SN770 8TB delivers a Specdex score of 86 — strongest in read.

Does Samsung 990 EVO Plus 1TB or WD Black SN770 8TB 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 EVO Plus 1TB or WD Black SN770 8TB? +

Samsung 990 EVO Plus 1TB — more score per dollar ($90 vs $792). Specdex score per dollar at MSRP.