Java CPU Performance Pentium M vs. Celeron D

[phaxmohdem]

In my Data & File Structures course today we were writing little programs to calculate the amount of time required to process basic manipulations of various sized arrays. I choose to code on my laptop vs. the schools desktops for convenience sake, but I noticed something I found to be a little weird today.

When executing our programs, my laptop consistently whooped up on the schools desktops in finishing its tasks (20-30% faster on average). Granted the specs of the schools comps aren't the greatest, but I just really thought they would be pwning my humble lappy.

Schools Comps:
Celeron D 2.93GHz
512MB RAM

My Laptop:
Pentium M 1.6gHz (Banias)
2GB RAM

I'm fairly certain that the programs we were running were not severely hampered by the RAM difference between the computers, but I thought that the Celerons would certainly perform faster. Do they honestly suck THAT bad @ Java?

 

[Zap]

The Pentium M cores have a much higher IPC (instructions per clock) than the Netburst cores.

 

[GuitarDaddy]

Yes the Pentium M is based on the core architecture like C2D's and has far superior IPC.
And yes the Celery D's were pretty bad. Your lappy will run circles around those PC's at anything.

 

[evolucion8]

Yeah, the Pentium M is the base of the current architecture in which is based the Intel Core Duo and Intel Core 2 Duo. My current CPU at 2.46GHz is able to smoke my Pentium 4 EE 3.4GHz in all disciplines (Except media encoding which tends to trade blows). My girlfriends PC has a Celeron D 2.93GHz and a laptop with a Celeron 1.13GHz which is based on the Pentium 3 and her laptop feels more responsive and boot faster. Pentium 4 based Celerons really suck, Pentium 3 and Pentium M based Celerons are far more superior.

 

[Zap]

Don't forget the new desktop Celeron 4XX series, which are just single core versions (with less cache) of the Core 2 Duo.