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Samsung 990 PRO 2 TB — PCIe 4.0 · 7450 MB/s · TLC
Samsung

Samsung 990 PRO 2 TB

PCIe 4.0 · 7450 MB/s · TLC

91
/ 100
From $199
VS
Samsung 990 PRO 2 TB wins by 1
ADATA SE920 500GB — USB4 · 3800/3700 MB/s · 500GB
ADATA

ADATA SE920 500GB

USB4 · 3800/3700 MB/s · 500GB

90
/ 100
From $180
Specdex verdict

Samsung 990 PRO 2 TB takes it — here’s why.

In our weighted Specdex score, Samsung 990 PRO 2 TB lands at 91 and ADATA SE920 500GB at 90. That puts Samsung 990 PRO 2 TB ahead by 1 points — a narrow margin driven mostly by its strengths in the categories below.

Pick Samsung 990 PRO 2 TB if…

  • ✓Top-tier PCIe 4.0 sustained speeds
  • ✓Magician software ecosystem
  • ✓5-year warranty

Pick ADATA SE920 500GB if…

  • ✓Plug-and-play (portable)
  • ✓Competitive per-GB cost
  • ✓3-5 year warranties typical
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Winner by scenario

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

Endurance & reliability

Samsung 990 PRO 2 TB

Write endurance and long-term dependability

Samsung 990 PRO 2 TB leads on endurance (92 vs 84).

Value for money

Tie

Specdex score per dollar at MSRP

Effectively tied — similar score-per-dollar at MSRP.

Samsung 990 PRO 2 TB 91
vs
90 ADATA SE920 500GB

Score breakdown

Samsung 990 PRO 2 TB
91
speed 92
endurance 92
software 96
value 88
reliability 92
read 0
write 0
ADATA SE920 500GB
90
speed 0
endurance 84
software 0
value 88
reliability 0
read 88
write 84

Specs side-by-side

Samsung 990 PRO 2 TB versus ADATA SE920 500GB — full spec comparison
Spec Samsung 990 PRO 2 TB ADATA SE920 500GB
Capacity
1 / 2 / 4 TB
▲ 500GB
Interface
PCIe 4.0 x4 NVMe 2.0
USB4
Sequential read
7450 MB/s
—
Sequential write
6900 MB/s
—
NAND
V-NAND TLC
—
Endurance
1200 TBW (2TB)
—
Warranty
5 years
—
Read/Write
—
3800/3700 MB/s
Release year
—
2024

Samsung 990 PRO 2 TB

Pros
  • +Top-tier PCIe 4.0 sustained speeds
  • +Magician software ecosystem
  • +5-year warranty
Cons
  • −Runs hot under sustained writes
  • −Initial firmware ECC issues (since fixed)
  • −Premium pricing

ADATA SE920 500GB

Pros
  • +Plug-and-play (portable)
  • +Competitive per-GB cost
  • +3-5 year warranties typical
Cons
  • −Portable variants are USB-only
  • −SATA models capped ~550 MB/s
  • −DRAM-less drives slower sustained

FAQ: Samsung 990 PRO 2 TB vs ADATA SE920 500GB

Which is better, Samsung 990 PRO 2 TB or ADATA SE920 500GB? +

Samsung 990 PRO 2 TB scores 91 on our weighted rubric — ahead by 1. Your best pick depends on the sub-scores above.

Is Samsung 990 PRO 2 TB worth the price? +

At $199, Samsung 990 PRO 2 TB delivers a Specdex score of 91 — strongest in software.

Is ADATA SE920 500GB worth the price? +

At $180, ADATA SE920 500GB delivers a Specdex score of 90 — strongest in read.

Does Samsung 990 PRO 2 TB or ADATA SE920 500GB 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 better for endurance & reliability, Samsung 990 PRO 2 TB or ADATA SE920 500GB? +

Samsung 990 PRO 2 TB — leads on endurance (92 vs 84). Write endurance and long-term dependability.