vs
Samsung 840 Pro Series 256GB
Samsung PM841 256GB
Top 4%450 points
Top 4%
Top 83%82 points
Top 83%
Samsung 840 Pro Series 256GB
Samsung PM841 256GB
Top specs and features

Samsung 840 Pro Series 256GB vs Samsung PM841 256GB: 10 facts in comparison

1. sequential read speed

The maximum sequential read speed according to the manufacturer. It is one test of how well the drive can read data.
540MB/s
Samsung 970 Evo NVMe M.2 2280 2TB: 3500MB/s
540MB/s

2. sequential write speed

The maximum sequential write speed according to the manufacturer. It is one test of how well the drive can write data.
520MB/s
Intel DC P4510 Series 8TB: 3000MB/s
330MB/s

3. internal storage

0MB more internal storage.
256GB
Intel DC P4510 Series 8TB: 8000GB
256GB

4. random read speed

The maximum random read speed according to the manufacturer. It is one test of how well the drive can read data.
100000IOPS
Silicon Power AIC3C0P 800GB: 750000IOPS
98000IOPS

5. maximum random write speed

The maximum random write speed according to the manufacturer. It is one test of how well the drive can write data.
90000IOPS
Intel Optane 905P U.2 480GB: 550000IOPS
65000IOPS

6. thickness

0mm thinner.
7mm
Intel 600p 128GB: 1.5mm
7mm

7. bits of encryption supported

AES (Advanced Encryption Standard) encryption is a widely used method to secure data. There are three levels of encryption (128, 192 and 256) with 256-bit being the strongest.
0
Crucial MX500 2.5" 2TB: 256
256

8. height

0mm shorter.
69.85mm
Toshiba OCZ RC100 M.2 2242 120GB: 22mm
69.85mm

9. width

0mm narrower.
100mm
Western Digital Blue 1TB M.2 2280: 22mm
100mm

10. weight

7.5g lighter.
62.5g
Toshiba OCZ RC100 M.2 2242 120GB: 3g
55g

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