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LexarLJDS23-64GABEU
SanDiskSDCZ80-016G
VS
▲ 5411,493 ▼

Release date: Q2 2012.

Effective Speed 
+185%
Real World Speed
Performance profile from 3,225 user samples
Benchmark your USB here
319 User Benchmarks
Best Bench: 34% 44GB free, PID a833 @USB 3.0
Worst Bench: 9% 60GB free, PID a833 @USB 2.1
Poor: 9% Great: 34%
SPEED RANK: 202nd / 639
2,906 User Benchmarks
Best Bench: 81% 9GB free, PID 5580 @USB 3.0
Worst Bench: 29% 2GB free, PID 5580 @USB 3.0
Poor: 29% Great: 81%
SPEED RANK: 11th / 639
Effective Speed
Effective USB Speed 		21.8 % 62.1 % Hugely faster effective speed.
+185%
Peak Score 
+442%
Read
Peak Sequential Read Speed 		102 MB/s 196 MB/s Hugely faster peak read speed.
+92%
Write
Peak Sequential Write Speed 		47 MB/s 62 MB/s Much faster peak write speed.
+32%
4K Read
Peak 4K Random Read Speed 		4.9 MB/s 15.3 MB/s Hugely faster peak random read.
+212%
4K Write
Peak 4K Random Write Speed 		0.66 MB/s 10.1 MB/s Insanely faster peak random write.
+1,430%
Value & Sentiment 
+39%
Value
Value For Money 		15.2 % 23.9 % Much better value.
+58%
User Rating
UBM User Rating 		51 % 54 % Slightly more popular.
+6%
Price
Price (score) 		$38 $17 Much cheaper.
+55%
Nice To Haves 
+5%
Age
Newest 		142 Months +5% 149 Months
Specifications 
Capacity
Capacity 		64GB 16GB
Conclusion 
Average Bench 21.8%
Average Bench 62.1%

The 16GB version of the Lexar s23 has superb potential thanks to its decent read/write speeds of 100/30 MBps, an outstanding 4k random write speed of 0.6 MBps and its superb price. At the 32GB and 64GB capacities the s23 is no longer as attractive because its speeds remain mostly unchanged from those of its younger 16GB sibling. Generally speaking larger capacity drives have better write performance which makes the 32 and 64 GB segments faster and therefore significantly harder to compete in for drives that don't utilize the additional panellization opportunity. [Jul '13 USBFlashPro]

MORE DETAILS

The benchmark scores for the SanDisk Extreme were stunning. Until now every flash drive we have tested has shown a serious weakness in the area of 4K random writes. The SanDisk Extreme achieved a 4K random write speed of 2.1 MB/s which was over three times faster than the best of the rest, unfortunately we were unable to get consistent measurements but 2.1 MB/s was towards at the lower end of the range (10.8 MB/s - 1.71 MB/s) we observed. We suspect the inconsistency relates to the way the controller batches page cleanup. The other benchmark observations were all consistent and to date this drive has the highest sequential read we have seen on a 16GB flash drive. The SanDisk Extreme has not been released in the UK. Our test unit had to be shipped from Hong Kong where we were able to purchase it at at an extremely reasonable price. We will update the price if/when the drive becomes officially available in the UK ... [Jul '12 USBFlashPro]

MORE DETAILS

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USB Flash Drive Rankings (Price vs Performance) November 2024 USB Rankings

We highlight the best USB flash drive in terms of balanced performance and value for money using current prices, sequential read, sequential write , 4k read and 4k write speed. The speeds are combined to form a single effective speed which measures performance for tasks such as copying photos, music and videos. Effective speed is adjusted by current price and capacity to yield value for money. Finally thousands of individual user ratings are used to validate our benchmark figures. [USBFlashPro]

Group Test Results

  • Best user rated - User sentiment trumps benchmarks for this comparison.
  • Best value for money - Value for money is based on real world performance.
  • Fastest real world speed - Real World Speed measures performance for typical consumers.
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