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External SSDs

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LaCie Rugged SSD Pro 4TB vs WD Black P50 Game Drive SSD 2TB

Compare LaCie Rugged SSD Pro 4TB and WD Black P50 Game Drive SSD 2TB side by side. Both are 4TB Thunderbolt 3 external SSDs, but they differ in speed, design, and value. Here's how they stack up.

Our Pick

LaCie

LaCie Rugged SSD Pro 4TB
9.2/10

A 4TBThunderbolt 3 portable — uniquely huge for this speed tier. The Rugged SSD Pro 4TB fills a slot nothing else really does: 4TB of fast external storage that's actually rugged, not just claimed to be.

Thunderbolt 3 + 4TB
IP67 + 3m drop + 1-ton crush
5-year Rescue
Check on Amazon →

Western Digital

WD Black P50 Game Drive SSD 2TB
8.6/10

The 2TB Black P50 holds the 2000 MB/s write rate noticeably longer than the 1TB on long transfers. A natural choice for PS5 cold-library expansion where you want the extra cache budget for moving big installs.

Gen 2x2 ready
5-year warranty
2TB cold library for PS5
Check on Amazon →

Spec Comparison

Spec
LaCie Rugged SSD Pro 4TB
WD Black P50 Game Drive SSD 2TB
Read Speed
2.7 GB/s ✓
2.0 GB/s
Write Speed
1.9 GB/s
2.0 GB/s ✓
Capacity
4 TB ✓
2 TB
Interface
Thunderbolt 3
USB 3.2 Gen 2
Endurance (TBW)
2,400 TB ✓
1,200 TB
Warranty
5 Years
5 Years
Score
9.2/10 ✓
8.6/10
Total Wins
4 wins
1 win

Frequently Asked Questions

Which is better, LaCie Rugged SSD Pro 4TB or WD Black P50 Game Drive SSD 2TB?
The LaCie Rugged SSD Pro 4TB scores 9.2/10 compared to 8.6/10 for the WD Black P50 Game Drive SSD 2TB. Our expert analysis favors the LaCie Rugged SSD Pro 4TB for its superior speed.
What's the difference between LaCie Rugged SSD Pro 4TB and WD Black P50 Game Drive SSD 2TB?
The key differences: The LaCie Rugged SSD Pro 4TB offers 2,700 MB/s reads vs 2,000 MB/s for the WD Black P50 Game Drive SSD 2TB. Capacity options differ: LaCie Rugged SSD Pro 4TB is 4TB while WD Black P50 Game Drive SSD 2TB is 2TB. The LaCie Rugged SSD Pro 4TB uses Thunderbolt 3 while the WD Black P50 Game Drive SSD 2TB uses USB 3.2 Gen 2.
Which is faster, LaCie Rugged SSD Pro 4TB or WD Black P50 Game Drive SSD 2TB?
The LaCie Rugged SSD Pro 4TB is faster with 2,700 MB/s read speeds compared to 2,000 MB/s for the WD Black P50 Game Drive SSD 2TB. That's a 35% speed advantage.
Which has better value, LaCie Rugged SSD Pro 4TB or WD Black P50 Game Drive SSD 2TB?
The LaCie Rugged SSD Pro 4TB scores higher (9.2 vs 8.6/10), indicating better overall value in our evaluation. Check both models on the retailer's site for the latest details.

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