SSDBoss Review Our evaluation of 840 Pro vs 335

read performance

How quickly data is read from the drive

840 Pro
6.6
Intel 335
5.8
4K Random Read, 4K Random Read Access Time and 512K Sequential Read

write performance

How quickly data is written to the drive

840 Pro
7.0
Intel 335
7.0
4K Random Write, 4K Random Write Access Time and 512K Sequential Write

real world benchmarks

How well the drive performs common tasks

840 Pro
8.1
Intel 335
7.9
Windows 7 Boot-up Time, Photoshop Lens Filter and AS SSD ISO Copy

Benchmarks

How well the drive performs on common benchmarks

840 Pro
6.9
Intel 335
6.8
Passmark Disk Rating, PCMark Vantage and AS SSD Score

No winner declared

Too close to call

Differences What are the advantages of each

Front view of Samsung 840 Pro

Reasons to consider the
Samsung 840 Pro

Report a correction
Significantly faster 4k random read 311.34 MB/s vs 107.08 MB/s Around 3x faster 4k random read
Higher capacity 512 GB vs 180 GB More than 2.8x higher capacity
Significantly larger cache 256 MB vs 0 MB Compared to all SSDs, 256 MB cache is just OK
Faster windows 7 boot-up time 7.8 s vs 9.5 s Around 20% faster windows 7 boot-up time
Significantly lower avg. power consumption 2 Watts vs 2.95 Watts More than 30% lower avg. power consumption
Significantly lower 4k random read access time 0.8 ms vs 2.34 ms 2.9x lower 4k random read access time
Higher AS SSD score 1,143 pts vs 787 pts More than 45% higher AS SSD score
Lighter 53 g vs 78 g More than 30% lighter
Higher MTBF 1,500,000 hours vs 1,200,000 hours 25% higher MTBF
Thinner thickness 7 mm vs 10 mm More than 25% thinner thickness
Faster sequential write 520 MB/s vs 450 MB/s More than 15% faster sequential write
Slightly more capacity per dollar 1.83 GB/$ vs 1.5 GB/$ More than 20% more capacity per dollar
Front view of Intel 335

Reasons to consider the
Intel 335

Report a correction
Higher passmark rating 4,478 pts vs 3,921 pts Around 15% higher passmark rating

Benchmarks Real world tests of 840 Pro vs Intel 335

4K Random Read

840 Pro
311.34 MB/s
Intel 335
107.08 MB/s

4K Random Write

840 Pro
130.58 MB/s
Intel 335
124.08 MB/s

Windows 7 Boot-up Time

840 Pro
7.8 s
Intel 335
9.5 s

Avg. Power Consumption

840 Pro
2 Watts
Intel 335
2.95 Watts

4K Random Read Access Time

840 Pro
1.91 ms
Intel 335
2.02 ms

4K Random Write Access Time

840 Pro
0.8 ms
Intel 335
2.34 ms

Reviews Word on the street

840 Pro  vs Intel 335 

8.0
6.0
The random read/write performance data from SiSoft Sandra that we also quote is a measure of a drive's sustained performance when reading and writing a contiguous block of information to a randomly chosen location.
840 Pro

8.0
8.0
So the big difference in terms of performance you can likely trace to the flash memory in each drive.
840 Pro

Overall

8.7 Out of 10
7.8 Out of 10

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