SSD vs HDD
HDDs were initially introduced by IBM in 1956. HDD is approx 60-year old technology. Magnetism is used by HDD to store information on rotating platter. A read/write head floats above the spinning platter for reading and writing data on permanent basis. Performance of HDD is depend on the spins speed of the flatter. Today’s HDD spins either 5400 RPM (Revolutions per Minute) or 7200 RPM (Revolutions per Minute), some server based platters spin at up to 15,000 RPM.
the biggest advantage of using HDD is that it can store lots of data and available at cheaper rate. Nowadays, 1 Terabyte(1024 gigabyte) is easily available in budget laptop. So if you want large amount of storage at cheaper rate you must go for a HDD rather than SSD.
The appearance of HDD looks same from the outside as SSD. HDD use SATA interface.The most well-known size for PC hard drives is the 2.5″ frame factor while a bigger 3.5″ shape factor is utilized as a part of personal computers. The bigger size takes into account more platters inside and subsequently more storage limit.
what is SSD?
SSD stand for Solid State Drive. SSD is considered as a oversized version of USB memory stick. SSD is a non-volatile memory type. SSD work silently as it does not have a mechanical arm to read and write data. SSD relies on controller to perform a bunch of operations related to reading and writing data. Controller play important role in determining the speed of SSD. An example of a fast controller today is the Samsung 860 Pro SSD controller that support speeds up to 550MB/s read and write speeds.
SSD vs HDD
The actual comparison between SSD and HDD are
|Bases||SSD (Solid State Drive)||HDD (Hard Disk Drive)|
|Power consumption||Less power draw||More power draw,|
|Cost||Expensive, around 12000 for 512GBstorage||Only around Rs.3500 for 1TB storage|
|Capacity||Typically not larger than 1TB for notebook size drives; 4TB max for desktops||Typically around 500GB and 2TB maximum for notebook size drives; 10TB max for desktops|
|Computer Boot Time||Only 10-13 seconds average bootup time||Only 30-40 seconds average bootup time|
|Noise||It produce less noise as it contain no movable parts||It is noisy as it contain mechanical arm which produce noise|
|Heat Produced||Little heat is produced||High heat is produced|
|Failure Rate||Mean time between failure rate of 2.0 million hours||Mean time between failure rate of 1.5 million hours|
|File Copy / Write Speed||Generally above 200 MB/s and up to 550 MB/s for cutting edge drives||The range can be anywhere from 50 – 120MB / s|
|File Opening Speed||faster than HDD||Slower than SSD|
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Why should you consider HDD:
- You get lots of storage capacity, up to 10TB
- Price of HDD is less as compare to SSD
Why should you consider SSD:
- You want faster performance
- You Don’t require large amount of storage