a relatively simple question on dual processor/core

[nononsense]

Quote from Tums:

Vista, did you say?

He meant this only for the diehard believers.

 

[Equalizer]

Quote from fastpenny:

anybody know how a dual core cpu's performance compare to a dual processor system? eg. a 2.8 ghz dual core intel cpu compare to dual xeon 2.8 ghz?

A few comparisons here, albeit a little dated, however not restricted to Intel:

http://techreport.com/reviews/2005q2/opteron-x75/index.x?pg=1

 

[Cache Landing]

The real question is why anyone would not get a dual core processor. They cost about the same price as the single core. At least if you're talking about Intel. And there were some valid points for traders that suggested certain platforms will only work with windows.

Not to mention that if you are on a budget, as many are on these threads, building a system with AMD components is considerably more expensive than Intel.

 

[gnome]

Gateway has already officially discontinued making computers with a single core CPU. It won't be long before everybody goes that way.

 

[nononsense]

Quote from Cache Landing:

The real question is why anyone would not get a dual core processor. They cost about the same price as the single core. At least if you're talking about Intel. And there were some valid points for traders that suggested certain platforms will only work with windows.

Not to mention that if you are on a budget, as many are on these threads, building a system with AMD components is considerably more expensive than Intel.

Of course, you won't have any choice.
But this was not the question raised by the originator of the thread.
As long as you are aware that a lot of software things have to happen before 1 + 1 = 2.

The old dream of new speed = old speed * 2 every 18 months is FINISHED.

 

[gnome]

Quote from nononsense:

Of course, you won't have any choice.
But this was not the question raised by the originator of the thread.
As long as you are aware that a lot of software things have to happen before 1 + 1 = 2.

The old dream of new speed = old speed * 2 every 18 months is FINISHED.

My response was geared toward to prior post... "The real question is why anyone would not get a dual core processor..."

In other words, why bother with single cores at all today.

 

[nononsense]

Quote from gnome:

My response was geared toward to prior post... "The real question is why anyone would not get a dual core processor..."

In other words, why bother with single cores at all today.

Sorry gnome, that was my intention as well. I corrected this still in time as you'll see.
Thank you for pointing this out.

 

[Bernard111]

Quote from jaytsecan:

Acutally, the operating system implementation and optimization makes a big difference on the impact of dual-core and hyperthreading performance.

Hyper-Threading is the culprit here. The Extreme Edition class of processors have Hyper-Threading to allow them to execute four threads consecutively (on four logical processors, but there are only two real physical cores). The Pentium D class processors on the other hand, have no Hyper-Threading, limiting them to two threads for simultaneous execution on the two real physical cores. Now what happens on the Extreme Edition processor is that that operating system is unable to cleverly dispatch the threads to the right logical core. For example, if two threads are being issued to two logical cores that belong to the same core, the processor's equivalent operating speed is as good as back to a single core Pentium 4 with Hyper-Threading.


[...]]

I'm using a Pentium D 945 running @ 4Ghz

...do you mean that a "D" is better than an Extreme Edition class CPU --to be used in Windows XP Pro and TT X_Trader that is a multi-thread application?

Or, by the way, a Duo Core CPU is really better?!


:eek:

 

[Cache Landing]

Quote from Bernard111:

I'm using a Pentium D 945 running @ 4Ghz

...do you mean that a "D" is better than an Expreme Edition class CPU --to be used in Windows XP Pro and TT X_Trader that is a multi-thread application?

Or, by the way, a Duo Core CPU is really better?!


:eek:

Depends on what you're trying to do.

I have both from intel...
-pentium 4 HT
-pentium D core duo

Admittedly, if I am just running a couple applications the pentium 4 is MUCH faster. Even with my trading platform running.

However, with trading platform running, using photoshop, and watching movies, the D is better.

 

[Bernard111]

Quote from Cache Landing:

Depends on what you're trying to do.

I have both from intel...
-pentium 4 HT
-pentium D core duo

Admittedly, if I am just running a couple applications the pentium 4 is MUCH faster. Even with my trading platform running.

However, with trading platform running, using photoshop, and watching movies, the D is better.

It's only for running TT X_Trader and another software in foreground.

Any other experience -- also about using the CPU affinity feature to assign single CPU to specific thread?