RaveneR

A friend just told me, Core 2 Duo processors, like for example a E6420 which is at 2.13Ghz, has their total speed splited between the 2 cores?

Is it true? Coz i'm a little confused by him that he insists that PentiumD is better for gaming

jp306

That's not true at all, both cores run at the same speed 2.13ghz for the e6400/6420 and 1.86ghz for the e6300/e6320. The PentiumD is ok, but the Core2 duo is the fastest series of chips on the market. The AMD Athlon64 X2 is also faster than the PentiumD ...BTW

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"I told my psychiatrist that everyone hates me. He said I was being ridiculous - everyone hasn't met me yet."
Rodney Dangerfield.

RaveneR

hmm ok, thx for clearing the doubt, i think my friend is trying to cheat me into buy a PentiumD from him so he can clear the stock he has...

thanks for the heads up

jp306

He's not your friend if he's trying to cheat you like that. The PentiumD was a weak attempt by intel to answer the AMD 64 X2 . It was never the best or fastest chip for gaming. The AMD 64 was the best before the Core2. Dual/multi core chips really are not a factor in gaming yet, but they will be soon.

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"I told my psychiatrist that everyone hates me. He said I was being ridiculous - everyone hasn't met me yet."
Rodney Dangerfield.

Dyre Straits

If someone tried to take advantage of me this way, I'd never call them 'friend' again.

My E6700 @ 2.66 GHz....BOTH cores. I'm about to find out just how much it'll overclock, too.

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ChaosMinionX

I would hope to see something in the realm of 3.6-4ghz

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RaveneR

maybe Penryn family processors can reach that speed, since they will produce less heat output in 45nm than the Conroe's 65nm...

zaim

anything dual core.. quad core.. or what not... do not share the ghz between each core to creat a total 'ghz'

the quad core QX6800 which just got released is a QX6800 2.93ghz.... meaning each core is 2.93ghz <--- true! ....

2.93ghz / 4 = 737mhz each core. <-- FALSE


also your friend is a moron

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kris23

retard....cough....cough the core 2 chips can go far above normal to around 3.4-3.6GHz usually. use less power and get far better performance.

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temeteus82

hey since we are talking about core 2. I have a question about it. The chips is designed for DDR2 533MHz ram and some people (and wikipedia) says that there is performance gains if DDR2 800MHz is used. But still I can't find any numbers about it...

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Lowfat

the difference is quite small, maybe 2-3% if not overclocking at all.

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jp306

If you overclock, then ram speed is a big deal, but if you don't it won't matter that much. Like posted above it's about 2-3% difference.

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"I told my psychiatrist that everyone hates me. He said I was being ridiculous - everyone hasn't met me yet."
Rodney Dangerfield.

Vampyromaniac

Hmm I should do some tests when I have my PC up and running...

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temeteus82

thanks all

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Zelig

And 2.93 GHz * 4 = 11.72 GHz is also false, despite what ebay sellers might lead you to believe.

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zaim

it kinda isn't false man.... 2.93 ghz * 4 does give you a total of 11.72ghz of processing power... but won't display it as a whole number because that's just now cpu's are meant to display their speed

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Vampyromaniac

It is false because a single threaded application would run at 1/4 speed you would expect it to.

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zaim

man... i said you have that much processing power... i didn't say how it would allocate it

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mike2h

as above & there is no reality in wich 4 cores running full bore at 2.93 is the same as a 4 threaded single core(if there was such a thing) running at 11.72( i know that is not what u specifically said but that is what it comes down to).
while it may sound nice it just isnt that simple.

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kris23

if a core ran at 1/4 2.93GHz then that would make the Core 2 much more clock efficient than anything else ever

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RaveneR

if you have a quad core running 2.93Ghz, use Steam(for those who play Halflife games) to run a System Check, i think you will see 11732Mhz, or at least i did get 3324Mhz on my
T2300 which runs at 1.66Ghz...

Edit: not anymore, they've fixed/patched it up, so it displays a single core speed now..

ChaosMinionX

Ummm what are you talking about?

45nm is going to produce more heat than 65nm, and current core2duos (e6600-x6800) can run 3.6-4ghz quite easily on air cooling, especially with high end components being used...... Kinda lost on that

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Lowfat

Where did you get this info from? AFAIK, no TDP info released about Penryn. And, heat always comes down with a die shrink.

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hackerx

usually heat and power requirements decrease with each die shrink

even with additional transistors and cache added,the decreased size of manufacturing node reduces power requirements

i can't even imagine what a 90nm version of the HD 2900 xt wuda been like!!!!

RaveneR

in terms of size and electricity, something of a smaller scale will require lesser amount of energy in order to operate, which is why people are trying to get things as small as possible so as to save as much resources as possible.

CDsDontBurn

why is this statement false when the 90nm scotties were released? they were MUCH hotter than the 130nm northwood counter parts. The scotties used less voltage yes, but their wattage was much higher.

intel's CPUs were pretty much hot from the s478 prescott all the way to the 9xx pentium Ds AFAIK.

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Lowfat

Prescotts were a mistake lol . They weren't just a die shrink. A better comparision would be a Prescott to a Cedar Mill die shrink, nothing was change except going to 65nm. And it definitely helped in terms of heat.

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hackerx

@cd-Prescott doesn't count since it suffered from terrible leakage issues
Same thing is happening with R600

@rave-Intel still uses the 130nm process for manufacturing soutbridges,so they aren't too keen on making it small
And 90nm for northbridges(965,P35,G33,X38 etc....)(975x was 130nm i think,cud be wrong though)
That cud be cause 65nm is their current process of choice

ChaosMinionX

I just remember someones saying that Penryn quads were going to run hotter than Kentsfield, I think it was over at XS, but I could be wrong.

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