Overclock.net › Forums › Components › Hard Drives & Storage › SSD › SSD vs HDD
New Posts  All Forums:Forum Nav:

SSD vs HDD

post #1 of 43
Thread Starter 
Okay, I'm a bit confused.

What I know is that SSD can't fail due to head crashes, are much faster in terms of latency, but is much more expensive.

So, does that mean

SSD > 15k RPM HDD?

Also, what is latency and what exactly are the numbers?
post #2 of 43
Don't SSD's also have an issue with only being able to read/write so many times?
post #3 of 43
A SSD is faster than a 15k drive in latency and depending on the drives, usually faster in read/write as well.
Space Heater
(13 items)
 
  
CPUMotherboardGraphicsRAM
Xeon W3520 Foxconn Bloodrage Sapphire 4890 Toxic 12GB Corsair DDR3 1333mhz 
Hard DriveOptical DriveOSMonitor
Vertex 2 60GB|4.5TB Storage A POS LG one.. Windows 7 Ultimate x64 Samsung Syncmaster 2443BWX 
KeyboardPowerCaseMouse
Logitech G15 v2 PC Power & Cooling 750w Antec 1200 Logitech G5 
Mouse Pad
A POS BestBuy one.. 
  hide details  
Reply
Space Heater
(13 items)
 
  
CPUMotherboardGraphicsRAM
Xeon W3520 Foxconn Bloodrage Sapphire 4890 Toxic 12GB Corsair DDR3 1333mhz 
Hard DriveOptical DriveOSMonitor
Vertex 2 60GB|4.5TB Storage A POS LG one.. Windows 7 Ultimate x64 Samsung Syncmaster 2443BWX 
KeyboardPowerCaseMouse
Logitech G15 v2 PC Power & Cooling 750w Antec 1200 Logitech G5 
Mouse Pad
A POS BestBuy one.. 
  hide details  
Reply
post #4 of 43
SSD eats HDD for breakfast the only downside to SSDs are the 16k complete wright/earase before it pretty much die ( for certain of them. ) on there own . ( they have backup space to sowhat conter this a little but if you defragment it it will shorten is life each time . ) an SSD have 275MO read compared to a 100MO 7200rpm read . and the 15k drive I presume you are talking about the seagate one are a gimmick . they are just loud and not reliable enough .

also power efficiency and heat coming from a 15k HDD is a big downside too.

SSD are practically failproof. you could let it fall from your hand from 4-5 feet ( not on concrete though) and they will be all right .
Edited by Marc-Olivier Beaudoin - 10/28/10 at 1:00pm
    
CPUMotherboardGraphicsRAM
[Phenom II X6 1090T @4GHz better cooling awaits] [GA-890FXA-UD7 rev 2.0] R9 390 [8GB Kingston HyperX 1566MHz 9-9-9-24 @ 1.71volts] 
Hard DriveOptical DriveOSMonitor
[WD RE3 500GB-WD green 1TB- OCZ vertex 2 60GB] [LG super multi] [Windows 7 premium 64bit] 1 x 25.5'' 1920x1200 + 1 25.5'' 1920x1080p 
KeyboardPowerCaseMouse
CM Storm Quick Fire [Corsair TX 750w] [Cooler master HAF X] Logitech G502 
Mouse PadAudio
Steelseries extra large thick mousepad Fried 
  hide details  
Reply
    
CPUMotherboardGraphicsRAM
[Phenom II X6 1090T @4GHz better cooling awaits] [GA-890FXA-UD7 rev 2.0] R9 390 [8GB Kingston HyperX 1566MHz 9-9-9-24 @ 1.71volts] 
Hard DriveOptical DriveOSMonitor
[WD RE3 500GB-WD green 1TB- OCZ vertex 2 60GB] [LG super multi] [Windows 7 premium 64bit] 1 x 25.5'' 1920x1200 + 1 25.5'' 1920x1080p 
KeyboardPowerCaseMouse
CM Storm Quick Fire [Corsair TX 750w] [Cooler master HAF X] Logitech G502 
Mouse PadAudio
Steelseries extra large thick mousepad Fried 
  hide details  
Reply
post #5 of 43
Yeah an SSD wil only do like 30bil re-rights, so if you dont change it out for 20 years or so you might have an issue....
post #6 of 43
Vertex 2 120GB vs VelociRaptor 600GB: http://www.anandtech.com/bench/Product/152?vs=182


Quote:
Originally Posted by Marc-Olivier Beaudoin View Post
and the 15k drive I presume you are talking about the seagate one are a gimmick . they are just loud and not reliable enough .
Absolutely not. 15K RPM HDDs are not gimimicks. There are no 15K RPM consumer HDDs. They are ALL server/enterprise SAS/SCSI drives. They have their place and are MORE reliable than standard HDDs.





Quote:
Originally Posted by vonVanir View Post
Yeah an SSD wil only do like 30bil re-rights, so if you dont change it out for 20 years or so you might have an issue....
Each MLC NAND cells is capable of about 10,000 writes....
Edited by DuckieHo - 10/28/10 at 1:01pm
Once again...
(13 items)
 
  
CPUMotherboardGraphicsRAM
i7 920 [4.28GHz, HT] Asus P6T + Broadcom NetXtreme II VisionTek HD5850 [900/1200] + Galaxy GT240 2x4GB G.Skill Ripjaw X [1632 MHz] 
Hard DriveOSMonitorKeyboard
Intel X25-M 160GB + 3xRAID0 500GB 7200.12 Window 7 Pro 64 Acer H243H + Samsung 226BW XARMOR-U9BL  
PowerCaseMouseMouse Pad
Antec Truepower New 750W Li Lian PC-V2100 [10x120mm fans] Logitech G9 X-Trac Pro 
  hide details  
Reply
Once again...
(13 items)
 
  
CPUMotherboardGraphicsRAM
i7 920 [4.28GHz, HT] Asus P6T + Broadcom NetXtreme II VisionTek HD5850 [900/1200] + Galaxy GT240 2x4GB G.Skill Ripjaw X [1632 MHz] 
Hard DriveOSMonitorKeyboard
Intel X25-M 160GB + 3xRAID0 500GB 7200.12 Window 7 Pro 64 Acer H243H + Samsung 226BW XARMOR-U9BL  
PowerCaseMouseMouse Pad
Antec Truepower New 750W Li Lian PC-V2100 [10x120mm fans] Logitech G9 X-Trac Pro 
  hide details  
Reply
post #7 of 43
Quote:
Originally Posted by Marc-Olivier Beaudoin View Post
SSD eats HDD for breakfast the only downside to SSDs are the 16k wright/earase before it pretty much die on there own . ( they have backup space to sowhat conter this a little but if you defragment it it will shorten is life each time . ) an SSD have 275MO read compared to a 100MO 7200rpm read . and the 15k drive I presume you are talking about the seagate one are a gimmick . they are just loud and not reliable enough .
Youre not supposed to defrag an SSD, its one of the benefits of running an SSD in the first place.

Also have you ever OWNED a 15k drive by seagate? yes they do produce a bit of heat, not much more than a WD black, and are only noisy upoun start up.....

@OP 2 of my 15k drives = 1 top end SSD. And im running it on a low end controller, if i upgraded my controller i will most likely beat an SSD.

either way, it laughs at my face and kicks the loading bar in the arse to move it along at a quick rate.

From what i understand latency is the time between the command is registered and the time it takes for that data block to be sent off on its way.
Edited by Cata1yst - 10/28/10 at 1:07pm
post #8 of 43
Quote:
Originally Posted by Cata1yst View Post
Youre not supposed to defrag an SSD, its one of the benefits of running an SSD in the first place.

@OP 2 of my 15k drives = 1 top end SSD. And im running it on a low end controller, if i upgraded my controller i will most likely beat an SSD.

either way, it laughs at my face and kicks the loading bar in the arse to move it along at a quick rate.
I know you don't defrag an SSD hence why I said it reduce their lifetime it could also possibly kill it but some people do it anyway .
    
CPUMotherboardGraphicsRAM
[Phenom II X6 1090T @4GHz better cooling awaits] [GA-890FXA-UD7 rev 2.0] R9 390 [8GB Kingston HyperX 1566MHz 9-9-9-24 @ 1.71volts] 
Hard DriveOptical DriveOSMonitor
[WD RE3 500GB-WD green 1TB- OCZ vertex 2 60GB] [LG super multi] [Windows 7 premium 64bit] 1 x 25.5'' 1920x1200 + 1 25.5'' 1920x1080p 
KeyboardPowerCaseMouse
CM Storm Quick Fire [Corsair TX 750w] [Cooler master HAF X] Logitech G502 
Mouse PadAudio
Steelseries extra large thick mousepad Fried 
  hide details  
Reply
    
CPUMotherboardGraphicsRAM
[Phenom II X6 1090T @4GHz better cooling awaits] [GA-890FXA-UD7 rev 2.0] R9 390 [8GB Kingston HyperX 1566MHz 9-9-9-24 @ 1.71volts] 
Hard DriveOptical DriveOSMonitor
[WD RE3 500GB-WD green 1TB- OCZ vertex 2 60GB] [LG super multi] [Windows 7 premium 64bit] 1 x 25.5'' 1920x1200 + 1 25.5'' 1920x1080p 
KeyboardPowerCaseMouse
CM Storm Quick Fire [Corsair TX 750w] [Cooler master HAF X] Logitech G502 
Mouse PadAudio
Steelseries extra large thick mousepad Fried 
  hide details  
Reply
post #9 of 43
Quote:
Originally Posted by Cata1yst View Post
@OP 2 of my 15k drives = 1 top end SSD. And im running it on a low end controller, if i upgraded my controller i will most likely beat an SSD.
20xRAID0 15K HDDs still cannot keep up to a high-end SSD in random performance.

SSDs can do up 170MB/s random writes while a HDD can do less than 5MB/s.

Quote:
Originally Posted by Marc-Olivier Beaudoin View Post
I know you don't defrag an SSD hence why I said it reduce their lifetime it could also possibly kill it but some people do it anyway .
No, defragging never kills a HDD. Defrag just waste write cycles unnecessarily.


It also might temporarily hurt the performance of the SSD. SSDs benefit from distributing data across its 4-10 channels. If the defrag program happens to move them to the same NAND, it hurts performance when accessing that data.
Edited by DuckieHo - 10/28/10 at 1:05pm
Once again...
(13 items)
 
  
CPUMotherboardGraphicsRAM
i7 920 [4.28GHz, HT] Asus P6T + Broadcom NetXtreme II VisionTek HD5850 [900/1200] + Galaxy GT240 2x4GB G.Skill Ripjaw X [1632 MHz] 
Hard DriveOSMonitorKeyboard
Intel X25-M 160GB + 3xRAID0 500GB 7200.12 Window 7 Pro 64 Acer H243H + Samsung 226BW XARMOR-U9BL  
PowerCaseMouseMouse Pad
Antec Truepower New 750W Li Lian PC-V2100 [10x120mm fans] Logitech G9 X-Trac Pro 
  hide details  
Reply
Once again...
(13 items)
 
  
CPUMotherboardGraphicsRAM
i7 920 [4.28GHz, HT] Asus P6T + Broadcom NetXtreme II VisionTek HD5850 [900/1200] + Galaxy GT240 2x4GB G.Skill Ripjaw X [1632 MHz] 
Hard DriveOSMonitorKeyboard
Intel X25-M 160GB + 3xRAID0 500GB 7200.12 Window 7 Pro 64 Acer H243H + Samsung 226BW XARMOR-U9BL  
PowerCaseMouseMouse Pad
Antec Truepower New 750W Li Lian PC-V2100 [10x120mm fans] Logitech G9 X-Trac Pro 
  hide details  
Reply
post #10 of 43
Quote:
Originally Posted by Marc-Olivier Beaudoin View Post
SSD eats HDD for breakfast
Agreed

Quote:
Originally Posted by Marc-Olivier Beaudoin View Post
the only downside to SSDs are the 16k wright/earase before it pretty much die on there own . ( they have backup space to sowhat conter this a little but if you defragment it it will shorten is life each time . ) an SSD have 275MO read compared to a 100MO 7200rpm read .
I disagree [edit] it will lats a long time [/edit]

Yeah defrag an SSD??? why it's electrons, not a disk
Edited by vonVanir - 10/28/10 at 1:39pm
New Posts  All Forums:Forum Nav:
  Return Home
  Back to Forum: SSD
Overclock.net › Forums › Components › Hard Drives & Storage › SSD › SSD vs HDD