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PRESCOTT 64bit!?!?

F

fliptastic

n00b
Joined
Feb 10, 2004
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56
is prescott going to be a 64 bit processor? I read on a site i think that they dont come out with a 64 bit processor till 2006. Does amd really have the upperhand???
 
Intel is going to release Prescott CPUs with 64 bit capabilities sometime in the future, but it probably won't be for some time. I know right now that they are planning on creating lower end server 64 bit CPUs...but I'm not sure what plans Intel has of migrating them into the consumer market to battle with AMD right now.
 
ok so intel isn't coming out with 64 for awhile, but about the mobos. Obviously amd's 64 series is amazing and way more efficient than p4's. Tho, all the mobos i look at for 64's, they have no dual channel mem for most gamerz like mwa. Should i just go along with a 64 setup and later on, upgrade to a better mobo?
 
The current Athlon 64's don't support dual channel memory, you'd have to wait for the new ones on the new socket that are due out in a few months. Right now the Athlon FX has dual channel memory, but it's ECC only, so that's probably not the best option. Really, right now isn't the best time to buy, wait a few more months for the dual channel Athlon 64's to come out and then get one of those or pick up one of the current single channel Athlon 64's that will probably be discounted by then. Also, the AMD 64 bit series right now is amazing, but not hugely more efficient than the p4 side of things. Dual channel memory does not make a huge difference for regular game playing either. That being said, you might be very happy with a 2.6C and nice Intel platform right now, as they are pretty cheap and overclock very well.
 
Intel wont wait very long before they get a 64-bit processor out on the desktop computers. All the rumors say that Prescott already has 64-bit extensions build into the core and they have not denied it when questioned. They refuse to comment on it currently. There will be an updated Prescott that helps fix the heat issue in the current Prescotts pretty soon. Teja's will release towards the end of this year or early 2005 and they will most likely be 64-bit processors according to all the news and speculation on them. Intel is in no hurry though cause 64-bit computing isn't benefitting AMD any right now and wont for a while. Its still a 32-bit processor race for the moment. It will be 2-3 years or more before 64-bit starts to go mainstream somewhat.

ok so intel isn't coming out with 64 for awhile, but about the mobos. Obviously amd's 64 series is amazing and way more efficient than p4's. Tho, all the mobos i look at for 64's, they have no dual channel mem for most gamerz like mwa. Should i just go along with a 64 setup and later on, upgrade to a better mobo?
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More efficient? Yes. Can they scale as high? No. By increasing the pipeline stages to 31 Prescott will be able to break 5Ghz. Right now in its first releases it wont perform very well till its ramped up in speed to at least 4Ghz and higher. After that the extra pipelines and less efficiency wont matter because it will be able to make up for it in clock speed.

Here is a good analogy i read that will help you understand.

A CPU's pipeline is much like a car factory's assembly line. At the Athlon XP factory there are 10 stages and each worker is assigned a relatively large amount of work to do. A single worker might put on a hub cap, screw in a dashboard, and install windshield wipers and all this work must be completed before the unfinished car can head on down the line. Because only one worker can attend to the car at once, the assembly line moves only as fast as the slowest worker on the line. Its the same for CPU pipelines. Over at the Pentium 4 factory there are 20 stages or workers attending to number-crunching the instructions at hand. Because there are more workers on the line, each P4 worker has fewer tasks to perform at his particular station. Thus the P4 assmebly line can move along much faster than the Athlon XP assembly line with just its 10 workers.

For Prescott, Intel has hired 31 workers to build the car. So there are even fewer things for each worker to accomplish. Each worker simply screws on a single lug nut before sending the car along. A 3.4Ghz, Prescott is just idling. At this speed its not really useing the extended pipelines and this is the reason for the lackluster performance we all currently see. As higher clock speeds begin to take advantage of the 31-stage pipeline, we'll see massive speed boosts.

A long pipeline is only beneficial if you can run it at high speeds. If you can't increase the speed of the assembly line, the long pipeline hurts performance.
 
screw the prescott, when they put it to the test it had major heating issues compared to AMD, making overclocking a faint hope
 
Originally posted by anti
screw the prescott, when they put it to the test it had major heating issues compared to AMD, making overclocking a faint hope
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Several sites still got it up to 4Ghz on aircooling. Yes the heat is an issue but the processor part is being addressed by Intel with a soon to be updated Prescott and the current motherboards weren't designed for Prescott. Grantsdale boards will be.
 
I am quite sure there are dual channel motherboards for Athlon64s. You cannot say that the Athlon64 does not support dual channel memory - this is just blatantly wrong. However, you CAN say that the chip's on-die controller does not support it. However, mobo manufacturers can bypass the on-die controller and use their own on-board solution, that can be dual-channel.
 
Prescott will not, is not, 64 bit.
It's Xeon counterpart, Nocona, will be. And they are x86-64 compatible (despite the fact Intel won't even mention x86-64 or AMD64 in their "IA32e" documentation).
 
Originally posted by Mad_Pyro
I am quite sure there are dual channel motherboards for Athlon64s. You cannot say that the Athlon64 does not support dual channel memory - this is just blatantly wrong. However, you CAN say that the chip's on-die controller does not support it. However, mobo manufacturers can bypass the on-die controller and use their own on-board solution, that can be dual-channel.
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What boards do that and exactly how does that work? Dual Channel is made possible by an extra memory controller. In the Athlon XP and Pentium 4 there is two controllers in the northbridge. In the FX-51 im assuming there are dual controllers. What do they to do the motherboard? Stick a controller in the Northbridge also? Dual Channel is pretty useless. Is there any real advantage with the FX-51 over the A64 3400+ even though the FX-51 has nearly triple the bandwidth? No.

Prescott will not, is not, 64 bit.
It's Xeon counterpart, Nocona, will be. And they are x86-64 compatible (despite the fact Intel won't even mention x86-64 or AMD64 in their "IA32e" documentation).
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And where are you getting this kind of information from? Intel hasn't said NO there isn't extensions in Prescott already and they sure havn't said there wont be in the near future.

We got another look at a rundown of the 64bit extensions Intel has implemented in the Prescott and Nocona cores which looks very much like it could have been a slide from AMD a few years back.
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In trying to understand exactly why Intel has done things the way they have, our research has turned up a couple interesting tidbits. The Intel validation process is a grueling one (as one could well imagine would develop after something as embarrassing as the original Pentium's FDIV error). It is possible that a lack of availability of software (specifically 64 bit drivers for 64 bit windows) is preventing Intel from properly completing its validation process and enabling the hardware. We have also heard rumors that Intel couldn't enable the 64 bit extensions in Prescott without the added connections provided by LGA775. This doesn't quite seem to fit either as Nocoma won't be launching with a new socket.
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http://www.anandtech.com/showdoc.html?i=1973
 
The Noob Speaks:

Isn't all the Prescotts capabilites going to be done on an 800 FSB? I am understanding that it will. If so, will that make my ABIT VT7 a good motherboard for at least 5 years to come yet?
 
Originally posted by Arauthator
The Noob Speaks:

Isn't all the Prescotts capabilites going to be done on an 800 FSB? I am understanding that it will. If so, will that make my ABIT VT7 a good motherboard for at least 5 years to come yet?
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5 years? lol

More then likely it will only last you till the next release of Prescott which should be moving to LGA 775 soon. A new socket means you'll need a new motherboard.
 
Originally posted by Arauthator
The Noob Speaks:

Isn't all the Prescotts capabilites going to be done on an 800 FSB? I am understanding that it will. If so, will that make my ABIT VT7 a good motherboard for at least 5 years to come yet?
Click to expand...

5 years?? I dunno about that, thats like 2009, by then we will have flying cars.
 
Originally posted by Big Worm
5 years?? I dunno about that, thats like 2009, by then we will have flying cars.
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Yea we'll be zooming around in our Prescott powered flying cars haha.
 
Ah, my mistake on the dual channel memory statement. I'm sure it's possible, but I'm pretty sure right now a lot of the Athlon64 combos don't have it...

EDIT: And wouldn't a northbridge-like addition of the dual channel controller kinda eliminate the point of having an on die super fast memory controller? Argh...crazy memory stuff.. :confused:
 
Originally posted by Deadlierchair
EDIT: And wouldn't a northbridge-like addition of the dual channel controller kinda eliminate the point of having an on die super fast memory controller? Argh...crazy memory stuff.. :confused:
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Yea it would pretty much nullify having an on-die controller. Thats why i asked when someone said there are A64 boards that support dual channel.
 
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