HD vs SSD theoretical proformance

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tmicheal

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Theoreticaly what would win 2 hybrid SAS drives that have 8gb of ssd 128mb of cach and run at 15k rpm in raid 0 vs 1 low end ssd
 
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USAFRet


So...buy the drives.
Create some fancy charts.
Show us which is better.
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USAFRet

USAFRet

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Depends on the use.
I'd bet on the SSD.

A hybrid drive is only fast when getting data from that 8GB space.
The SSD is fast over the whole space.
 
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turkey3_scratch

turkey3_scratch

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That wouldn't be the first thing that comes to mind. The first thing that comes to mind would be durability as well as performance, assuming it's a quality SSD. Hard drives consume a small amount of power, I wouldn't consider them a burden of load on any PSU.
 
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jrrdmchls

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Two 15k drives running in strip 0 are most likely going to use much more power than a single SSD while getting very comparable performance. I like getting performance and efficiency thats why in "My Book" SSD still wins
 
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turkey3_scratch

turkey3_scratch

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Well, then, enjoy your 8W less of power consumption :lol:
 
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tmicheal

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theory you cant find 15k HD even if you wanted them
 
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tmicheal

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its going to be a heck of a lot more then 8w 15k hdd run over twice the speed of of 7200 and there 2 of them but like i said power and noise doesn't matter i just am interested to know
 
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tmicheal

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i stand corrected. but can you find 15k hybrid sas drives?
 
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jrrdmchls

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Substantially more than 8W considering Seagate is claiming an average of 8.6 watts per drive so 17.2 not to mention you are spinning drives continually. In an articular i found
http://www.tomshardware.com/reviews/840-pro-ssd-toggle-mode-2,3302-6.html

Seems that at idle SSD wins also with around 1W

So in conclusion SSDs win Period ;)
 
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USAFRet

USAFRet

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Since this is just a theoretical exercise, you can look around as well as I can.
 
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turkey3_scratch

turkey3_scratch

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Still very small. 8W was just a number I threw out of a hat since getting into the technicality is not even a necessity and is negligible in most situations when speaking of such small values of wattage.
 
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tmicheal

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is that power supply informer thing a badge or something i'm new to forums
 
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jrrdmchls

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Al Gore would be very disapointed lol
 
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USAFRet

USAFRet

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OK, whatever.

OP...since you asked the question, I toss this back to you. Postulate or link a performance graph that shows 2 x HDD of any type, in RAID 0, to be faster than a consumer grade SSD.
Price and drive size counts as well.

We think no. What say you?
Just theoretical, of course. Show your work.
 
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