SH

 

SSD vs HDD: What's the Difference?

**************************** Mac  HDD  SSD   PC Magazine website  SSD vs HDD      os, data  storage  a hard disk drive

Basic Concept ********** HDD      1956  plate     

SDD  boot  data   

SSD  USB   SSD  USB     

 

 

  1. Price ( article  2013 ) H D D - 0 . 0 7 5 U S $ p e r G B SSD ± 1 US$ per GB

 HDD



  

 SSD

2. P o w e r D r a w / B a t t e r y L i f e ( t e s t i n g 3 0 + m i n u t e b a t t e r y b o o s t ) H D D ± M o r e p o w e r d r a w , a v g 6 - 7 w a t t s SSD ± Less power draw avg 2-3 watts 3. C a p a c i t y H D D ± t y p i c a l l y 5 0 0 G B t o 2 T B SSD ± typically 512GB to 1TB 4. O p e r a t i n g S y s t e m B o o t T i m e H D D ± A r o u n d 4 0 s e c a v g b o o t u p t i m e SSD ± Around 22 sec avg bootup time 5. N o i s e H D D ± A u d i b l e c l i c k s a n d s p i n n i n g c a n b e h e a r d SSD ± no sound 6. V i b r a t i o n H D D ± s o m e t h i m e s SSD ± no 7. H e a t P r o d u c e d H D D ± m u c h h e a t t h a n S S D SSD ± little head 8. F a i l u r e R a t e H D D ± M T B F 1 . 5 m i l l i o n h o u r s SSD ± MTBF 2.0 million hours 9. F i l e C o p y / W r i t e S p e e d H D D ± 5 0 - 1 2 0 M B / s SSD ± above 200 MB/s ± up to 500MB/s 10.F i l e O p e n i n g S p e e d SSD ± up to 30% faster than HDD 11.M a g n e t i s m A f f e c t e d H D D ± M a g n e t s c a n e r a s e SSD ± safe from any effects of magnetism 12.E n c r y p t i o n

 

 

 

Both ± Full Disk Encryption (FDE) some model Credit By Apple4MM