If I have for example 2,5ghz dual core processor does that mean that I have 2x 2,5ghz processors or 2x 1,25ghz processors?
thanks for answering
Jussimies
thanks for answering
Jussimies
2x 2.5Ghz
But it does not = 5ghz, just 2 cores doing different stuff.Mad Ad wrote:
2x 2.5Ghz
Actually, that depends how they're being used.cyborg_ninja-117 wrote:
But it does not = 5ghz, just 2 cores doing different stuff.Mad Ad wrote:
2x 2.5Ghz
If you're running one app with two threads, it will be close to (but not exactly) equivalent to running that app on a 5ghz single core chip.
But if you've got more than one app running, then it's what you said.
That's why dual(or quad)-core is going to be soo cool when they get round to making multi-threaded games...
Last edited by Scorpion0x17 (2006-11-14 06:51:26)
Not exactly though, in multithreaded apps they just utilize the CPU more, not exactly equalling 5ghz though.Scorpion0x17 wrote:
Actually, that depends how they're being used.cyborg_ninja-117 wrote:
But it does not = 5ghz, just 2 cores doing different stuff.Mad Ad wrote:
2x 2.5Ghz
If you're running one app with two threads, it will be close to (but not exactly) equivalent to running that app on a 5ghz single core chip.
But if you've got more than one app running, then it's what you said.
That's why dual(or quad)-core is going to be soo cool when they get round to making multi-threaded games...
So given that BF2 and BF2142 don't actually take advantage of a dual core processor, why does a C2D running at 2.5Ghz run better than my P4 running at 3.4Ghz.
Just curious for the information that's all.
Just curious for the information that's all.
magik
Just a better architecture, now clockspeed isn't everything, it's more about how efficient your cpu is... go wikipedia it, to explain it will take me probably hours so I will give you baseline:DoctorFruitloop wrote:
So given that BF2 and BF2142 don't actually take advantage of a dual core processor, why does a C2D running at 2.5Ghz run better than my P4 running at 3.4Ghz.
Just curious for the information that's all.
Core 2 Duo = more work per clockspeed
if you are cpu-bottlenecked, you will get more fps because a single c2d core is faster than a 3.4 GHz P4. also the second core can do all of the background tasksDoctorFruitloop wrote:
So given that BF2 and BF2142 don't actually take advantage of a dual core processor, why does a C2D running at 2.5Ghz run better than my P4 running at 3.4Ghz.
Just curious for the information that's all.
once upon a midnight dreary, while i pron surfed, weak and weary, over many a strange and spurious site of ' hot xxx galore'. While i clicked my fav'rite bookmark, suddenly there came a warning, and my heart was filled with mourning, mourning for my dear amour, " 'Tis not possible!", i muttered, " give me back my free hardcore!"..... quoth the server, 404.
Primarily, because of all the other stuff going on in the background whilst you're playing. On a dual-core most, if not all, of that stuff get's shunted off to the second core.DoctorFruitloop wrote:
So given that BF2 and BF2142 don't actually take advantage of a dual core processor, why does a C2D running at 2.5Ghz run better than my P4 running at 3.4Ghz.
Just curious for the information that's all.
That too.cyborg_ninja-117 wrote:
Just a better architecture, now clockspeed isn't everything, it's more about how efficient your cpu is... go wikipedia it, to explain it will take me probably hours so I will give you baseline:
Core 2 Duo = more work per clockspeed
Last edited by Scorpion0x17 (2006-11-14 07:00:46)
1) If one process is taking up all the time on one core, the other core *should* (might) be running the other bits and bobs.
2) the design of the P4 has a much longer pipeline than AMD or C2D processors, this means clockspeed can be ramped up easier but the faster clock with a longer pipe doesnt mean it can do more actual work than a slower but shorter piped athlon or c2d.
2) the design of the P4 has a much longer pipeline than AMD or C2D processors, this means clockspeed can be ramped up easier but the faster clock with a longer pipe doesnt mean it can do more actual work than a slower but shorter piped athlon or c2d.
Last edited by Mad Ad (2006-11-14 07:02:37)
Which is what I said, was it not?cyborg_ninja-117 wrote:
Not exactly though, in multithreaded apps they just utilize the CPU more, not exactly equalling 5ghz though.Scorpion0x17 wrote:
Actually, that depends how they're being used.cyborg_ninja-117 wrote:
But it does not = 5ghz, just 2 cores doing different stuff.
If you're running one app with two threads, it will be close to (but not exactly) equivalent to running that app on a 5ghz single core chip.
But if you've got more than one app running, then it's what you said.
That's why dual(or quad)-core is going to be soo cool when they get round to making multi-threaded games...
That actually makes a lot of sense.
So if I whip out my put all of my existing rig on a conroe ready board and stick a C2D on there I'll see an improvement.
Just for info:
P4 650 3.4Ghz HT
2Gb DDR400 RAM
AGP graphics card.
Some other stuff.
I know ASRock do a mobo with both AGP and PCI-E, and both DDR and DDR2, would you reckon this would be a good way to gradually replace my existing rig?
So if I whip out my put all of my existing rig on a conroe ready board and stick a C2D on there I'll see an improvement.
Just for info:
P4 650 3.4Ghz HT
2Gb DDR400 RAM
AGP graphics card.
Some other stuff.
I know ASRock do a mobo with both AGP and PCI-E, and both DDR and DDR2, would you reckon this would be a good way to gradually replace my existing rig?
hybrid boards usually give hybrid results, in that example the AGP is running off the old pci lanes and rather than having 4 slots for ram you are stuck with 2 of each, trading todays expandability for tomorrows...and one of them will have longer lanes too.
Im not saying dont get it if it suits your upgrade path, just I wouldnt. On top of that changing processor from what you have is only going to change your bf2 experience a little, the gfx card is a much bigger player in the performance stakes and you dont mention what it is.
Im not saying dont get it if it suits your upgrade path, just I wouldnt. On top of that changing processor from what you have is only going to change your bf2 experience a little, the gfx card is a much bigger player in the performance stakes and you dont mention what it is.
we defenetely need more info on the gfx card. a apg card can be a 7800gt but could as well be a geforce 4 series
once upon a midnight dreary, while i pron surfed, weak and weary, over many a strange and spurious site of ' hot xxx galore'. While i clicked my fav'rite bookmark, suddenly there came a warning, and my heart was filled with mourning, mourning for my dear amour, " 'Tis not possible!", i muttered, " give me back my free hardcore!"..... quoth the server, 404.
Sorry, graphics card is a gainward Bliss 7800GS+ 512Mb running at 500MHz core and 700MHz memory.
savings boring but id keep ya money for now mate, until you can afford a full c2d mobo/cpu/ddr2. If you really must spend something perhaps drop in a D805 and clock the crap out of it, but tbh your not going to see a big jump even with that.
GHz = dont mean shit
(well not really)
(well not really)
Are you sure? The ASRock hybrid board for AMD processors supported a true AGP bus in addition to the PCI-e.Mad Ad wrote:
hybrid boards usually give hybrid results, in that example the AGP is running off the old pci lanes and rather than having 4 slots for ram you are stuck with 2 of each, trading todays expandability for tomorrows...and one of them will have longer lanes too.
Im not saying dont get it if it suits your upgrade path, just I wouldnt. On top of that changing processor from what you have is only going to change your bf2 experience a little, the gfx card is a much bigger player in the performance stakes and you dont mention what it is.
Ok so: 2,5ghz dual core processor is basically 2* 2,5ghz = 5ghz, but not all software supports dual core processors, but if for example one core is used fully by bf2 the background tasks move to the other core.
Did I get it right?
Thanks for the answers
Jussimies
Did I get it right?
Thanks for the answers
Jussimies
Well you are right about the core speeds (ex: 2 x 2.93Ghz) but the problem with it is that most programs are not made to run on both cores. You can see this when you open up the task manager and go to the performance bar. If you have a program running while you do this you can see in the CPU History windows that one core would be running at 60% to 70% while the other would be at 1% to 10%. And to answer your question, if you don't set the affinity of your cores windows will just pick the first available core which is Core 0. It is possible to change this by going to the processes tab in the task manager, right clicking on the program you want to change, scrolling down and clicking set affinity, and either selecting or deselecting the check box next to the core you want the program to run on.
Basically, yes. The exact specifics are, of course, more complicated than that. But as a rough 'laymans terms' idea of how it works, yes.Jussimies wrote:
Ok so: 2,5ghz dual core processor is basically 2* 2,5ghz = 5ghz, but not all software supports dual core processors, but if for example one core is used fully by bf2 the background tasks move to the other core.
Did I get it right?
Thanks for the answers
Jussimies