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Internal ssd comparison

WD_BLACK SN7100 vs 2TB WD SN850X NVMe SSD

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
2TB WD Black SN850X NVMe SSD

2TB WD Black SN850X NVMe SSD

  • Storage capacity: 2TB.
  • Endurance: 1200 TBW.
KSh 25,000Out of Stock

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2TB WD BLACK SN850X NVMe SSD with HeatsinkKSh 33,000
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4TB WD BLACK SN850X NVMe SSD with HeatsinkKSh 65,000
2 of 4 products

Our quick verdict

Choose the 2TB WD Black SN850X NVMe SSD if you want 2 TB of storage.

This comparison is partial: only 2 of the 12 specifications are published for both products. The WD_BLACK SN7100 does not list endurance; the 2TB WD Black SN850X NVMe SSD does not list SSD Type, interface / Protocol or Sequential Read / Write.

Storage capacity

WD_BLACK SN7100
1TB
2TB WD Black SN850X NVMe SSD
2TB

Form factor

WD_BLACK SN7100
M.2 2280 NVMe SSD
2TB WD Black SN850X NVMe SSD
M.2 2280

Key differences

The main differences to help you choose.

WD_BLACK SN7100

No clear advantage over the 2TB WD Black SN850X NVMe SSD in the published specifications. Check the detailed comparison for features that matter to you.

2TB WD Black SN850X NVMe SSD

  • More storage: 2 TB (vs 1 TB).

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.

2 priorities selected.
How each product answers the selected priorities
PriorityWD_BLACK SN71002TB WD Black SN850X NVMe SSD
Storage capacity1TB2TB
Form factorM.2 2280 NVMe SSDM.2 2280

Detailed comparison

Explore the full specifications, section by section.

General

General specifications comparison
SpecificationWD_BLACK SN7100 1TB2TB WD Black SN850X NVMe SSD
BrandWDWD

Performance

Performance specifications comparison
SpecificationWD_BLACK SN7100 1TB2TB WD Black SN850X NVMe 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.—
Random Read / Write1000000 IOPS read · 1400000 IOPS write—
Endurance—1200 TBW

Storage

Storage specifications comparison
SpecificationWD_BLACK SN7100 1TB2TB WD Black SN850X NVMe SSD
Brand / ModelWD WD_BLACK SN7100 · WDS100T4X0E2TB WD Black SN850X NVMe SSD
Storage Capacity1TB2TB
SSD TypeM.2 2280 NVMe SSD—
Form FactorM.2 2280 NVMe SSDM.2 2280
Interface / ProtocolPCIe Gen 4 x4 / NVMe—

Features & Compatibility

Features & Compatibility specifications comparison
SpecificationWD_BLACK SN7100 1TB2TB WD Black SN850X NVMe SSD
Features / SecurityTLC 3D NAND; designed for improved power efficiency—
CompatibilityCompatible M.2 2280 PCIe NVMe slots; Windows 10+ listed; check host firmware, space and platform support—

Physical & Package

Physical & Package specifications comparison
SpecificationWD_BLACK SN7100 1TB2TB WD Black SN850X NVMe SSD
Dimensions / Weight80 × 22 × 1.14 mm; 5.8 g—
Warranty / Package60 months · 60 months—

Model-specific details

Model-specific details specifications comparison
SpecificationWD_BLACK SN7100 1TB2TB WD Black SN850X NVMe SSD
Model-specific details1TB · WDS100T4X0E-00CJA0 — Product series: WD_BLACK SN7100; Operating temperature: 0°C to 85°C—

Similarities

  • Both use M.2 (form factor).
  • Both are made by WD.

In summary

Choose 2TB WD Black SN850X for more storage.

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