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Crucial X8 2TB vs Lexar SL660 2TB — Which External SSD Is Faster & Better Value?

Compare Crucial X8 2TB and Lexar SL660 2TB side by side. Both are 2TB USB 3.2 Gen 2 external SSDs, but they differ in speed, design, and value. Here's how they stack up.

Our Pick

Crucial

Crucial X8 2TB

8.4/10

A 2TB solid-aluminum Crucial X8 — a previous-generation premium drive that often goes on clearance at discount retailers. Worth it when the price beats the equivalent X9 Pro by $30+.

Aluminum unibody

1050/1000 MB/s sustained

3-year warranty

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Lexar

Lexar SL660 2TB

8.2/10

The 2TB SL660 doubles SLC cache budget over the 1TB. RGB and aluminum body preserved — a competitive Gen 2x2 2TB at moderate pricing. Worth comparing with the Kingston XS2000 2TB and Patriot Evlvr 2TB.

Gen 2x2 2000 MB/s

2TB storage

Aluminum body

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Spec Comparison

Spec

Crucial X8 2TB

Lexar SL660 2TB

Read Speed

1.1 GB/s

2.0 GB/s ✓

Write Speed

1.0 GB/s

2.0 GB/s ✓

Capacity

2 TB

Interface

USB 3.2 Gen 2

USB 3.2 Gen 2x2

Endurance (TBW)

1,200 TB

Warranty

3 Years

Score

8.4/10 ✓

8.2/10

Total Wins

1 win

2 wins

Frequently Asked Questions

Which is better, Crucial X8 2TB or Lexar SL660 2TB?

The Crucial X8 2TB scores 8.4/10 compared to 8.2/10 for the Lexar SL660 2TB. Our expert analysis favors the Crucial X8 2TB for its superior value.

What's the difference between Crucial X8 2TB and Lexar SL660 2TB?

The key differences: The Crucial X8 2TB offers 1,050 MB/s reads vs 2,000 MB/s for the Lexar SL660 2TB. Capacity options differ: Crucial X8 2TB is 2TB while Lexar SL660 2TB is 2TB. The Crucial X8 2TB uses USB 3.2 Gen 2 while the Lexar SL660 2TB uses USB 3.2 Gen 2x2.

Which is faster, Crucial X8 2TB or Lexar SL660 2TB?

The Lexar SL660 2TB is faster with 2,000 MB/s read speeds compared to 1,050 MB/s for the Crucial X8 2TB. That's a 90% speed advantage.

Which has better value, Crucial X8 2TB or Lexar SL660 2TB?

The Crucial X8 2TB scores higher (8.4 vs 8.2/10), indicating better overall value in our evaluation. Check both models on the retailer's site for the latest details.

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