3GHz laptop slow?

  • Thread starter Thread starter Jimmy Neutron
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J

Jimmy Neutron

I bought a new Toshiba Satellite P15-S420 laptop. I comes with a 3GHz P4, 512 MB
800FSB memory.
Today I compared it to an old AMD 1.4GHz desktop, 512MB 256FSB.
To my amazement a CPU only 3d render job took 1:44 on the toshiba and 1:47 on the
Amd.

What gives? What could be the reason for slow render compared to much slower
system?
 
Were you plugged in or on battery? Keep in mind all the high-powered laptops
will (by default) drop down to much lower speeds when on batteries to
conserve power.

Secondly, the AMD and Intel processors are significantly different that
depending on the program they can perform wildly differently. A program that
is friendly to one architecture could perform 50% faster in some cases and
slower in others, even though overall the two might perform on par overall.

Lastly, it sounds like you have a good chunk of RAM in each machine, but if
the job has to swap out a lot, a desktop system with a fast 7200rpm drive is
going to perform a heck of a lot faster than a laptop's common 5400rpm
drive.

-Eric Gross
 
I was pluggeg on. I set the render size to fit it ram. The CPU is a
"hyperthreading" version. Could it be that it is using just half of the CPUs
computation power?
The 3d program used was Bryce 5 which should be more friendly with Intel
architecture.
 
I was pluggeg on. I set the render size to fit it ram. The CPU is a
"hyperthreading" version. Could it be that it is using just half of the CPUs
computation power?
The 3d program used was Bryce 5 which should be more friendly with Intel
architecture.
Click to expand...

No it shouldn't, were you just assuming it?
Your results are probably right or not off too much, an Athlon is much
faster at Bryce 5 comparing P4 MHz to XP(nnnn). Bryce 5 is pretty old
now, might've been release in Q2, 2001... a new version might fare better
on the P4.
 
I was pluggeg on. I set the render size to fit it ram. The CPU is a
No it shouldn't, were you just assuming it?
Your results are probably right or not off too much, an Athlon is much
faster at Bryce 5 comparing P4 MHz to XP(nnnn). Bryce 5 is pretty old
now, might've been release in Q2, 2001... a new version might fare better
on the P4.
Click to expand...

I know my FPU scores are higher on my Athlon XP 2500+ laptop than my
[email protected] was. Although the rest of the system pulled it down. Very
low memory bandwidth, slow hdd and integrated video. The laptop gets
maybe 30-40fps in Quake 3 instead of 200-300 on the desktop :) Most
new stuff also would run faster on the p4.

Eric
 
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