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Crucial P5 Plus 8TB — PCIe 4.0 · 6600/5000 MB/s · 2TB
Crucial

Crucial P5 Plus 8TB

PCIe 4.0 · 6600/5000 MB/s · 2TB

86
/ 100
From $792
VS
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
Specdex verdict

Dead heat — it comes down to priorities.

In our weighted Specdex score, Crucial P5 Plus 8TB lands at 86 and Samsung 990 Pro 4TB at 86. With scores tied, the decision hinges on which sub-scores matter most to you.

Pick Crucial P5 Plus 8TB if…

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

Pick Samsung 990 Pro 4TB if…

  • ✓M.2 NVMe
  • ✓Competitive per-GB cost
  • ✓TBW scales with capacity
Crucial P5 Plus 8TB 86
vs
86 Samsung 990 Pro 4TB

Score breakdown

Crucial P5 Plus 8TB
86
read 90
write 88
endurance 88
value 84
Samsung 990 Pro 4TB
86
read 90
write 88
endurance 88
value 84

Specs side-by-side

Crucial P5 Plus 8TB versus Samsung 990 Pro 4TB — full spec comparison
Spec Crucial P5 Plus 8TB Samsung 990 Pro 4TB
Interface
PCIe 4.0
PCIe 4.0
Capacity
▲ 8TB
4TB
Read/Write
6600/5000 MB/s
7450/6900 MB/s

Crucial P5 Plus 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

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

FAQ: Crucial P5 Plus 8TB vs Samsung 990 Pro 4TB

Which is better, Crucial P5 Plus 8TB or Samsung 990 Pro 4TB? +

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

Is Crucial P5 Plus 8TB worth the price? +

At $792, Crucial P5 Plus 8TB delivers a Specdex score of 86 — strongest in read.

Is Samsung 990 Pro 4TB worth the price? +

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

Does Crucial P5 Plus 8TB or Samsung 990 Pro 4TB 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.