How many times is SSD faster than SATA?

Gmeister4

Gmeister4

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More people said SSD is faster than SATA but they didn't tell me how many times or percentages SSD is faster than SATA. How to calculate this?
 
VirtuBox

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Gmeister4 said:
More people said SSD is faster than SATA but they didn't tell me how many times or percentages SSD is faster than SATA. How to calculate this?
Click to expand...
I think they are talking about the difference between SSD and HDD, because the most part of SSD are still using SATA interface in our computers, and only NVMe disks use PCI-Express instead of SATA.
But it will not help me to answer to your question because performance are not the same between SSD disks. It depend on the memory used (MLC, NAND, V-NAND), the storage size and the price. Some low prices SSD are probably 10x slower than midrange SSD.

I can only confirm that SSD provide better latency in read/write access with higher transfers speed than HDD.
 
Gmeister4

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Gmeister4
VirtuBox said:
But it will not help me to answer to your question because performance are not the same between SSD disks. It depend on the memory used (MLC, NAND, V-NAND), the storage size and the price. Some low prices SSD are probably 10x slower than midrange SSD.

I can only confirm that SSD provide better latency in read/write access with higher transfers speed than HDD.
Click to expand...
Agreed but only wanted to know if there is a command to run and compare speed or performance between SSD and HDD.
 
WPCycle

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Run this command (below) on the SSD drive and HDD drive and compare the numbers.

dd if=/dev/zero of=test bs=64k count=16k conv=fdatasync
 
Gmeister4

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Gmeister4
I got this result

[root@myzopi ~]# dd if=/dev/zero of=test bs=64k count=16k conv=fdatasync
16384+0 records in
16384+0 records out
1073741824 bytes (1.1 GB) copied, 3.08909 s, 348 MB/s

I have another dedicated server but for HDD disk, it is a storage disk, I am not sure it is allow me to check on HDD disk with this command.
 
WPCycle

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Ok good...and yes, you can run the same command. Once you do, paste the same information from the SSD drive, and from the HDD drive.
 
SenseiSteve

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A Quick Comparison

Sequential read:
  • WD Black Edition 7,200rpm (215MB/s)
  • Samsung 860 Pro SSD (560MB/s)
  • Samsung 960 NVMe (3,200MB/s)
Sequential write
  • WD Black Edition 7,200rpm (215MB/s)
  • Samsung 860 Pro SSD (530MB/s)
  • Samsung 960 NVMe (1,900MB/s)
Random read IOPS
  • WD Black Edition 7,200rpm (84)
  • Samsung 860 Pro SSD (100,000)
  • Samsung 960 NVMe (380,000)
Random write IOPS
  • WD Black Edition 7,200rpm (207)
  • Samsung 860 Pro SSD (90,000)
  • Samsung 960 NVMe (360,000)
 
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