Which P4 CPUs can utilize Hyper Threading?

ALL the P4C & P4EE chips have HT;
Of the P4B (533FSB) chips, <i>only</i> the 3.06Ghz has HT;

AFAIK all the Precott core (P4E) chips have it too, but the NEW P4<b>A</b> 2.4Ghz Scotty cored budget chip doesn't.


It makes no difference to clockspeed at all. Performance-wise, it depends on the application. It's great for multi-threaded applications(of which there are very few you're likely to actually use...), and is very good for multi-tasking stuff - it helps stop the system becoming bogged-down and unresponsive because one CPU-intensive task is running.

For something like Playing a game, it gives no benefits at all, unless the game has been coded for multiple threads (which virtually always, they're not).

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Epox 8RDA+ V1.1 w/ Custom NB HS
XP1700+ @200x10 (~2Ghz), 1.4 Vcore
2x256Mb Corsair PC3200LL 2-2-2-4
Sapphire 9800Pro @412/740

u mention games will not benifit from HT, do you or anyone know if it will benifit me when i play DAoC (dark age of camelot) the reason being is i will run 2 accounts off 1 PC, 1 being a Buff Bot acc. the other my main

If u do things right.... People won't be sure you've done anything at all......

If running like that means you have to launch 2 separate clients or something (I'm not remotely familiar with DAOC I'm afraid), so are effectively running 2 programs, then it probably will help.

If, however, it's all run in the one program then it'll only help if the program was written to be multi-threaded, which is possible, but not too likely (writing multi-threaded code is not fun or easy, so most developers avoid it unless there's really no alternative)

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Epox 8RDA+ V1.1 w/ Custom NB HS
XP1700+ @200x10 (~2Ghz), 1.4 Vcore
2x256Mb Corsair PC3200LL 2-2-2-4
Sapphire 9800Pro @412/740

BTW, like the sig... very true sadly.

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Epox 8RDA+ V1.1 w/ Custom NB HS
XP1700+ @200x10 (~2Ghz), 1.4 Vcore
2x256Mb Corsair PC3200LL 2-2-2-4
Sapphire 9800Pro @412/740

yeah it will be 2 instances of DAOC running at the same time, so hopefully HT will help. when i goto windows task manager what does set affinity do? does it mean i could set CPU 0 for my buffbot and CPU 1 for my main character or do i leave it and let HT sort its self out?

If u do things right.... People won't be sure you've done anything at all......

I say let the OS take care of the affinity because you dont have 2 physical CPU...
On instance will always run of the virtual CPU and I dont think it will be good for performance.

Im not 100% sure about this but im pretty sure your CPu will be fed better if you let the OS take care of it.

Asus P4P800DX, P4C 2.6ghz@3.25ghz, 2X512 OCZ PC4000 3-4-4-8, Leadtek FX5900 w/ FX5950U bios@500/1000, 2X30gig Raid0