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Internal ssd comparison

WD_BLACK SN7100 vs Lexar NM620

Compare key specifications, features and design side by side.

Compared products
01Selected
WD_BLACK SN7100 1TB

WD_BLACK SN7100 1TB

  • 5.8 g.
  • Storage capacity: 1TB.
  • 1000000 IOPS read · 1400000 IOPS write.
KSh 19,500Out of Stock
02
Lexar NM620 1TB Internal SSD

Lexar NM620 1TB Internal SSD

  • 9 g.
  • Storage capacity: 1TB.
  • 200000 IOPS read · 256000 IOPS write.
  • Endurance: 500TBW.
KSh 24,000In Stock

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Lexar NM620 512GB Internal SSDKSh 16,500
Lexar NM610 PRO 500GB Internal SSDKSh 15,500
Lexar NQ780 1TB Internal SSDKSh 24,500
2TB WD BLACK SN850X NVMe SSD with HeatsinkKSh 33,000
PS5 WD BLACK SN850X 2TB with HeatsinkKSh 38,000
2TB WD Black SN850X NVMe SSDKSh 25,000
4TB WD BLACK SN850X NVMe SSD with HeatsinkKSh 65,000
2 of 4 products

Our quick verdict

Choose the WD_BLACK SN7100 if you want a lighter build (5.8 g).

Weight

WD_BLACK SN7100
5.8 g
Lexar NM620
9 g

Features

WD_BLACK SN7100
TLC 3D NAND, designed for improved power efficiency
Lexar NM620
3D TLC NAND with shock and vibration resistance

Model-specific details

WD_BLACK SN7100
1TB · WDS100T4X0E-00CJA0 — Product series: WD_BLACK SN7100
Lexar NM620
1TB · LNM620X001T-RNNNG — Product series: NM620

Random read / write

WD_BLACK SN7100
1000000 IOPS read · 1400000 IOPS write
Lexar NM620
200000 IOPS read · 256000 IOPS write

Key differences

The main differences to help you choose.

WD_BLACK SN7100

  • Lighter: 5.8 g (vs 9 g).

Lexar NM620

No clear advantage over the WD_BLACK SN7100 in the published specifications. Check the detailed comparison for features that matter to you.

What matters most to you?

Choose any priorities

How each product answers the questions buyers ask most. Tick a topic to add it, untick one to hide it.

5 priorities selected.
How each product answers the selected priorities
PriorityWD_BLACK SN7100Lexar NM620
FeaturesTLC 3D NAND, designed for improved power efficiency3D TLC NAND with shock and vibration resistance
Weight5.8 g9 g
Model-specific details1TB · WDS100T4X0E-00CJA0 — Product series: WD_BLACK SN71001TB · LNM620X001T-RNNNG — Product series: NM620
Random read / write1000000 IOPS read · 1400000 IOPS write200000 IOPS read · 256000 IOPS write
Sequential read / writeUp to 7250MB/s read · Up to 6900MB/s write · Manufacturer maximumUp to 3500MB/s read · Up to 3000MB/s write

Detailed comparison

Explore the full specifications, section by section.

General

General specifications comparison
SpecificationWD_BLACK SN7100 1TBLexar NM620 1TB Internal SSD
BrandWDLexar

Performance

Performance specifications comparison
SpecificationWD_BLACK SN7100 1TBLexar NM620 1TB Internal SSD
Sequential Read / WriteUp to 7250MB/s read · Up to 6900MB/s write · Manufacturer maximum; actual speed depends on host, reader/cable, file size and workload.Up to 3500MB/s read · Up to 3000MB/s write
Random Read / Write1000000 IOPS read · 1400000 IOPS write200000 IOPS read · 256000 IOPS write
Endurance—500TBW

Storage

Storage specifications comparison
SpecificationWD_BLACK SN7100 1TBLexar NM620 1TB Internal SSD
Brand / ModelWD WD_BLACK SN7100 · WDS100T4X0ELexar NM620 · LNM620X001T-RNNNG
Storage Capacity1TB1TB
SSD TypeM.2 2280 NVMe SSDM.2 2280 NVMe SSD
Form FactorM.2 2280 NVMe SSDM.2 2280 NVMe SSD
Interface / ProtocolPCIe Gen 4 x4 / NVMePCIe Gen 3 x4 / NVMe

Features & Compatibility

Features & Compatibility specifications comparison
SpecificationWD_BLACK SN7100 1TBLexar NM620 1TB Internal SSD
Features / SecurityTLC 3D NAND; designed for improved power efficiency3D TLC NAND with shock and vibration resistance
CompatibilityCompatible M.2 2280 PCIe NVMe slots; Windows 10+ listed; check host firmware, space and platform supportCompatible M.2 2280 PCIe NVMe slots; an M.2 SATA-only slot is not sufficient

Physical & Package

Physical & Package specifications comparison
SpecificationWD_BLACK SN7100 1TBLexar NM620 1TB Internal SSD
Dimensions / Weight80 × 22 × 1.14 mm; 5.8 g80 × 22 × 2.25 mm; 9 g
Warranty / Package60 months · 60 months60 months · 60 months

Model-specific details

Model-specific details specifications comparison
SpecificationWD_BLACK SN7100 1TBLexar NM620 1TB Internal SSD
Model-specific details1TB · WDS100T4X0E-00CJA0 — Product series: WD_BLACK SN7100; Operating temperature: 0°C to 85°C1TB · LNM620X001T-RNNNG — Product series: NM620; Operating temperature: 0°C to 70°C; Storage temperature: -40°C to 85°C

Similarities

  • Both have 1 TB of storage.
  • Both have a 5 years warranty.
  • Same SSD type: M.2 2280 NVMe SSD.

In summary

Choose WD_BLACK SN7100 for a lighter build.

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