How many times is SSD faster than SATA?

Gmeister4

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#1
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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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?
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.
 

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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