Prescott vs AMD64

[LilGator]

Yup, SP-94 + Tornado should be good cooling for this, 39c sounds pretty cool...my 1700+ DLT3C is running 42-45ish right now ... of course P4s are fine running 50+ even

[JCviggen]

Originally posted by Soulburner
And i'll say again, 4.2Ghz on air isn't enough for you?

You have pretty damn high expectations then.

nobody has his 4.2G on air with any stability. between 3.6 and 3.8 seems to be the norm

Also this SSE3 stuff, by the time any real apps are using SSE3 there will be Tejas. hardly a reason to buy a prescott NOW...

[tritium]

Prescott/NW at 3.6 to 3.8Ghz vs A64 @ 2.5 to 2.6Ghz

AMD wins.

[JCviggen]

Originally posted by tritium
Prescott/NW at 3.6 to 3.8Ghz vs A64 @ 2.5 to 2.6Ghz

AMD wins.

better make that 2.4-2.6...i dont think all are hitting 2.5+

[QuadDamage]

Originally posted by Soulburner
And i'll say again, 4.2Ghz on air isn't enough for you?

You have pretty damn high expectations then.

it's all about performance, not just operating frequency. and look at the 6th score on ORB it's also with DX9.0B and 3.10's

Somehow i can't imagine this prescott scoring more than 25k @ 4.2Ghz and heavily clocked Raddy XT.

[ricjax99]

Soulburner have you actually go a bench of 4.2 GHz on air?? i somewhat doubt it's stable at that level. Your really counting your chickens there m8

Just to echo what quad said and add my if the performance becomes less apparent at higher clocks what is 4.2GHz other than a higher number.

[zakelwe]

The vr-zone overclock keeps up the great tradition of them getting a good overclock, both on video and cpu's. I am not sure if this is just down to luck, the air quality in Singapore ( and lack of chewing gum ) or simply soemthing else.

Negating this it seems to be similar to NW in overclocking.

I am still looking forward to very cold testing though, especially if this possible non linear increase with core clocks happens. It was mentioned a 4.5GHz Prescott being similar on superpi to a 4.8GHz Northwood, and this sounds in the ball park what you would expect if it is true.

As they are a lot cheaper than the P4 3.2/3.4 EE, then hopefully we will have a lot more people with extreme cooling giving them a go and therefore more chance of getting one of those 90th percentile chips that do really well in the right hands -- rather than just sitting in an office doing spreadsheets.

Regards

Andy

[Soulburner]

Originally posted by macci
Your being a bit too optimistic there. For a stable air OC with normal noise levels I wouldn't expect to see much more than 3.8-3.9GHz - for starters that is.
There was a 4.2G CPU-Z shot over at VR-Zone but it didn't represent a stable clock speed.

Yeah that's the one i'm talking about, and it was a chip on the first day as well.

Who's to say we won't be seeing that as "normal" within the coming months ?

[ricjax99]

Originally posted by Soulburner
Yeah that's the one i'm talking about, and it was a chip on the first day as well.

Who's to say we won't be seeing that as "normal" within the coming months ?

I really doubt you will see 4.2 GHz stable as a "normal" overclock on air

If you do i'll eat my words but carry on speculating

[Chuck232]

Well, people are saying SSE3 isn't worth buying into now as there is nothing with SSE3 optimizations, then can't the same thing be said for 64bit processing? A64 shouldn't be worth buying right now if you're looking for 64bit apps, cause I mean, socket 939 will be out and whatnot.

[Vlad Draculea]

Originally posted by Vlad Draculea on 02-03-2004 05:32 PM

[JCviggen]

Originally posted by Vlad Draculea
increase with core clocks cant be faster than linear for a given design, what could be happening is that the reference desing that is used to compare is scaling slower than lineally.

Prescott performance scaling is slightly better than Northwoods, its far from perfect.
the only reason Prescott scales a bit better is cache. It has double the cache of NW. Compare prescott to an EE and performance will scale slightly worse. Cache is the answer to everything. Thats why a 2.6 GHz celeron is roughly as fast as a 2.0 celeron : lack of cache. hardly any scaling past a given point.

[ricjax99]

Originally posted by Chuck232
Well, people are saying SSE3 isn't worth buying into now as there is nothing with SSE3 optimizations, then can't the same thing be said for 64bit processing?

Im sure it has something to do with the fact that its the fastest 32-bit desktop chip with 64-bit capabilties

Probably why that statement isn't said often

Does the prescott have 64-bit capability? no
Is the prescott fastest 32-bit cpu? no

At least the A64 has something good to shout about

[Kanavit]

The prescott benefitted Intel more than gamers. P4E is 90nm which means more yields per wafer which is more profit for intel. That means intel can sell it cheaper than northwood. Intel is simply streamlining the manufacturing process to cut costs and expenses, and to make more Pentium4s with greater effeciency. P4E(prescott) has 1mb L2 cache which equals A64 so that will make it competitive marketing. The prescott was targeted for big PC manufacturers such as HP, Dell, Gateway, Sony, e-machines, and compaq. Sure the Prescott is slower for gaming than A64, but in this industry, to survive as a business. Gaming is the last in priority. Look at what happened to 3dfx.

[`schr0et]

Excellent post Kannavit!

[skate2snow]

FUGGER did 4.2 w/ a2.8E stock cooler, i dont know if it was stable, butit wasa stepping 1 too, so i think a 3.0-3.4 can do great, but w/ a water or exotic cooling.

[Evil_Spork]

yeah but how much heat can these poor chips handle!!!

if they can take 70°+ all the time then rock on, but.... last i checked silicon doesnt like that kinda heat.

[Kanavit]

Originally posted by PRanganathan
Excellent post Kannavit!

thx m8

[skate2snow]

Originally posted by Kanavit
The prescott benefitted Intel more than gamers. P4E is 90nm which means more yields per wafer which is more profit for intel. That means intel can sell it cheaper than northwood. Intel is simply streamlining the manufacturing process to cut costs and expenses, and to make more Pentium4s with greater effeciency. P4E(prescott) has 1mb L2 cache which equals A64 so that will make it competitive marketing. The prescott was targeted for big PC manufacturers such as HP, Dell, Gateway, Sony, e-machines, and compaq. Sure the Prescott is slower for gaming than A64, but in this industry, to survive as a business. Gaming is the last in priority. Look at what happened to 3dfx.

Oneof theyre first priority is gaming, Its almost only gamer that buy some chip individualy. And gamer are always upgrading.

I say that Intel makes 40% of theyre money by gamer/overclocker

[JCviggen]

Originally posted by skate2snow

I say that Intel makes 40% of theyre money by gamer/overclocker

Dude...you are so wrong.

its <5%


and the only screenshot i have seen of FUGGER with a 2.8 at 4+ was in a R507 prom

[Penti]

LOL skate2snow. If that was true Intel wouldn't survive.

BTW Why categorize overclockers with gamers? People use computers to other things too.. Gamers usally and in general do not know much at all about computers or hardware. But they will buy what they think will get them highest fps in CS

[C0bra]

Originally posted by skate2snow
FUGGER did 4.2 w/ a2.8E stock cooler, i dont know if it was stable, butit wasa stepping 1 too, so i think a 3.0-3.4 can do great, but w/ a water or exotic cooling.

Intel Prescott Preview to be published o_n the front page of Xtreme Systems at 12:00PM PST and here is a little teaser of o_ne by Fugger o_n a 507 modified Mach I

The 4.2Ghz clock WAS with a 507 modified Mach1..

[saaya]

that prommie IS FUGGER's sock cooler

im not too sure about if prescotts oc very high in a prommie... prescotts are only 5°C warmer than nws on air, this doesnt sound like much but prescotts actually produce quite a nice amount of heat wich will make prescotts run a lot warmer in a prommie than nws.

a 4.2ghz oc with a 507 modded phase change unti is anything from impressive... r507 is close to dry ice cooling!

[Soulburner]

Originally posted by saaya
a 4.2ghz oc with a 507 modded phase change unti is anything from impressive... r507 is close to dry ice cooling!

I have seen 4600mhz in one already...

[Signal0101]

Thank you for everyone's responses. The reason why I included the original values was for REALISTIC comparison. I don't care that one of my cousin's friend's brother is running his Prescott @ 4.2 Ghz air cooled or Athlon64 @ 2.5. The values of the A64 seem realistic to me because my friend has one and I kind of got an idea what it can do stable on air cooling (and stable is not one crash every couple of hours) What I care about is when I go and buy the chip, mobo, ram, I would be able to replicate the same overclock on all of the systems I put together (hence what most would get ocing a particular setup). So as it stands, taking the cpu debate aside, who do you think would take these categories assuming a Prescott 2.8 @ 3.8Ghz and AMD64 3000+ @ 2.4hz (1:1, no video oc, air cooling, best memory available for both)?

Video Conversion - ?
Gaming - ?
3D Mark 2001 - ?
3D Mark 2003 - ?
SuperPi - ?