Laptop vs Desktop Hd Which is faster

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asdf

taking an average desktop vs agerage laptop which one would
have better performing hd these days?
Have a person at work claiming that laptops would have
better performance. Doesn't seems like he's right.
 
i just through a laptop and a desktop out the window(don't worry they were
dells)......both hit the ground at the same time...they are equally fast.
 
taking an average desktop vs agerage laptop which one would
have better performing hd these days?
Have a person at work claiming that laptops would have
better performance. Doesn't seems like he's right.
Click to expand...

Disk drives have a couple parameters. There is the media
head rate (like 60MB/sec for your average desktop drive),
and there is the seek time. When your disk is randomly
accessing data, the head assembly moves from one track to
another. That takes a lot of time.

When the disk is rotating, and the head is repositioned,
you may have to wait most of a disk rotation time, for
the data to appear underneath the head assembly. That
is called "rotational latency". On average, you wait
1/2 of a rotation time, for the data to be readable.
And that means, that spindle speed is a good predictor
of random access performance. Therefore, the performance
list looks like this:

15000RPM Fastest drives. Available as SCSI, for servers/desktops
10000RPM Next fastest. SCSI or SATA. SATA for desktops (Raptor)
7200RPM Average desktop disk. SATA or IDE.
Maybe some laptops now ? Not sure.
5400RPM Desktop/laptop
4200RPM Slowest Laptop

There is a chance of some overlap, but basically the
very best drives are not laptop drives.

The acceleration profile of the head assembly can be
tweaked a bit, to save on noise or power use. A few
more milliseconds can be added to the latency, in the
interests of saving power. A laptop on batteries is not the
place to be using maximum head assembly acceleration, which
is another reason to suspect that a laptop will not be the
fastest, even if the RPMs are the same.

Laptop drives use a maximum of 5W, while desktop drives
draw 12-13W, and the extra power is used for a reason.

Laptop drives slow or stop between usages. Desktop
drives are available instantly for use (unless the
drive has been set to spin down after 20 minutes).
The average laptop users has to wait more, for drive
spinup, than the desktop user. And with the desktop or
SCSI drives, you can always set them to spin 24 hours
a day. Not so with the laptop, even if plugged into
the wall.

While I could construct a scenario where the fastest
laptop could beat the very slowest desktop I could find,
I would say on average the desktop is the winner.

Paul
 
asdf said:
taking an average desktop vs agerage laptop which one would
have better performing hd these days?
Have a person at work claiming that laptops would have
better performance. Doesn't seems like he's right.
Click to expand...

Desktop HDs perform better.

The average spindle speed on desktop HDs is 7200 RPM (with a few at 10,000);
on laptops it's 5600 (with some at 4200 and some at 7200). That translates
into a faster linear speed of the media across the heads of the desktop HDs.
The larger diameter of the desktop HD (3.5" vs 2.5") also increases that
linear speed at the outer edge.
 
asdf said:
taking an average desktop vs agerage laptop which one would have better performing hd these days?
Click to expand...

Desktop drives.
Have a person at work claiming that laptops would have better performance. Doesn't seems like he's
right.
Click to expand...

He hasnt got a clue.
 
Laptops run hotter than desktops due to the cramped space that can hold only
the minimum fans. Having used laptops in school for 4 years, I would say
stay away from them unless you need it for work/school. And then, only use
it for work/school.

--
Love and Teach, Not Yell and Beat
Stop Violence and Child Abuse.
No such thing as Bad Kids. Only Bad Parents.
Friends don't turn friends on to drugs.
The path often thought about and sometimes chosen by abused children as
adults is Suicide. Be a real friend.

A64 3500+, Gigabyte GA-K8NSC-939,AIW 9800 128mb
MSI 550 Pro, X-Fi, Pioneer 110D, 111D
Antec 550 watt,Thermaltake Lanfire,2 Gb Dual Channel OCZ
2XSATA 320gb Raid Edition, PATA 120Gb
XPMCE2005, 19in Viewsonic,BenchMark 2001 SE- 19074
Games I'm Playing- Falcon 4, SP:WAW
 
VanShania said:
Laptops run hotter than desktops due to the cramped space that can hold only the minimum fans.
Click to expand...

Its more complicated than that with decently designed laptops.
Having used laptops in school for 4 years,
Click to expand...

And the world has moved on considerably with laptops over that time.
I would say stay away from them unless you need it for work/school. And then, only use it for
work/school.
Click to expand...

More fool you.
 
and what time would that be, mindreader?

--
Love and Teach, Not Yell and Beat
Stop Violence and Child Abuse.
No such thing as Bad Kids. Only Bad Parents.
Friends don't turn friends on to drugs.
The path often thought about and sometimes chosen by abused children as
adults is Suicide. Be a real friend.

A64 3500+, Gigabyte GA-K8NSC-939,AIW 9800 128mb
MSI 550 Pro, X-Fi, Pioneer 110D, 111D
Antec 550 watt,Thermaltake Lanfire,2 Gb Dual Channel OCZ
2XSATA 320gb Raid Edition, PATA 120Gb
XPMCE2005, 19in Viewsonic,BenchMark 2001 SE- 19074
Games I'm Playing- Falcon 4, SP:WAW
 
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