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Samsung 990 Pro 1TB — PCIe 4.0 · 7450/6900 MB/s · 1TB
Samsung

Samsung 990 Pro 1TB

PCIe 4.0 · 7450/6900 MB/s · 1TB

86
/ 100
From $90
VS
WD Blue SN580 8TB — PCIe 4.0 · 4150/4150 MB/s · 2TB
Western Digital

WD Blue SN580 8TB

PCIe 4.0 · 4150/4150 MB/s · 2TB

86
/ 100
From $792
Specdex verdict

Dead heat — it comes down to priorities.

In our weighted Specdex score, Samsung 990 Pro 1TB lands at 86 and WD Blue SN580 8TB at 86. With scores tied, the decision hinges on which sub-scores matter most to you.

Pick Samsung 990 Pro 1TB if…

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

Pick WD Blue SN580 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 Pro 1TB

Specdex score per dollar at MSRP

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

Samsung 990 Pro 1TB 86
vs
86 WD Blue SN580 8TB

Score breakdown

Samsung 990 Pro 1TB
86
read 90
write 88
endurance 88
value 84
WD Blue SN580 8TB
86
read 90
write 88
endurance 88
value 84

Specs side-by-side

Samsung 990 Pro 1TB versus WD Blue SN580 8TB — full spec comparison
Spec Samsung 990 Pro 1TB WD Blue SN580 8TB
Interface
PCIe 4.0
PCIe 4.0
Capacity
1TB
▲ 8TB
Read/Write
7450/6900 MB/s
4150/4150 MB/s

Samsung 990 Pro 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 Blue SN580 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 Pro 1TB vs WD Blue SN580 8TB

Which is better, Samsung 990 Pro 1TB or WD Blue SN580 8TB? +

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

Is Samsung 990 Pro 1TB worth the price? +

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

Is WD Blue SN580 8TB worth the price? +

At $792, WD Blue SN580 8TB delivers a Specdex score of 86 — strongest in read.

Does Samsung 990 Pro 1TB or WD Blue SN580 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 Pro 1TB or WD Blue SN580 8TB? +

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