PDA

View Full Version : single cpu vs. dual cpu?


$o_dope
10-28-01, 03:01 PM
how much MHz is needed for a single amd cpu system to surpass a dual amd system?

RED Hot Machine
10-28-01, 03:09 PM
I believe a dual 500 is about the same as a 800.

i12bina3
10-28-01, 03:55 PM
WHAT? is that all ... you must be joking ... thats a total rip
just think about it ... you buy yourself a duron 800 you OC it to lets say 1gig-1.1gig ... this is almost the same as a dual board? why buy a dual and spend more money (you cant or you almost cant OC a dual board)
i thought it was dual 500 working together = 1.0 - 1.2

flounder43
10-28-01, 04:03 PM
dual cpu's are tricky. You need something that will be able to use, and take advantage of the extra processing.

Servers are just about the only app. I can think of. Certainly not windows...

dugans
10-28-01, 04:13 PM
Originally posted by $o_dope
how much MHz is needed for a single amd cpu system to surpass a dual amd system?

Unless something has changed, this is like comparing apples and oranges!

My dual PII (sorry, only duallie I've had!) 400 mhz ran at comparable speed to my K6-2 450 in most apps- very few user apps are coded to use 2 processors. However, the advantages came through when multitasking- 1cpu on one task, the other was still open (affinity), so no waiting. This pc served up my website, and domain security for a couple years, while being used as a desktop pc at the same time: the 450mhz single cpu couldn't touch that!

A duallie IS faster than a comparable single cpu pc, but that difference is tough to quantify.
A duallie is good IF:
you do a LOT of multi-tasking, I mean 6 or 7 power hungry apps
OR
you do high-end graphics- video, image editing, cad
OR
you do a lot of software development and are almost constantly compiling code
OR
you want a desktop pc that can also be a full time webserver without performance loss.

Otherwise you are probably better off with a single cpu.

My opinion only.

Tomas
10-28-01, 06:07 PM
Originally posted by RED Hot Machine
I believe a dual 500 is about the same as a 800.

Thats not how it works.... WIth a dual cpu you can for an example use one cpu for video encoding then you wont notice a slowdown at all since then you run rest of your stuff on the other cpu...... Or if there are encoding programs that supports dual cpus it will encode about twice as fast as an single cpu.

On regular use you wont notice a difference with a dual cpu. Most for users who do video encoding, 3d rendering and wanna have resources free too do other stuff at the same time.

hyperbob
10-28-01, 06:15 PM
I would like quad 1.8 AMD mps

donny_paycheck
10-28-01, 10:01 PM
Originally posted by rogerdugans


Unless something has changed, this is like comparing apples and oranges!

My dual PII (sorry, only duallie I've had!) 400 mhz ran at comparable speed to my K6-2 450 in most apps- very few user apps are coded to use 2 processors. However, the advantages came through when multitasking- 1cpu on one task, the other was still open (affinity), so no waiting. This pc served up my website, and domain security for a couple years, while being used as a desktop pc at the same time: the 450mhz single cpu couldn't touch that!

A duallie IS faster than a comparable single cpu pc, but that difference is tough to quantify.
A duallie is good IF:
you do a LOT of multi-tasking, I mean 6 or 7 power hungry apps
OR
you do high-end graphics- video, image editing, cad
OR
you do a lot of software development and are almost constantly compiling code
OR
you want a desktop pc that can also be a full time webserver without performance loss.

Otherwise you are probably better off with a single cpu.

My opinion only.

I concur. The servers on my ship are the only dual processor machines (twin PIII Xeon 1ghz 2mb cache) I've ever seen. You need multiple tasks running at one time to even take advantage of more than one CPU and an OS that supports 2 or more CPUs (like winnt server)