Whats a good P4 to OC to 4.0Ghz

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I would say go with a D 930 and Thermaltake Big Typhoon to cool it. I've heard those will OC to 4.5 on water without too much effort. I think it'll hit 4 on air though
 
Unless you can cough up a link to some benchmarks comparing a Northwood P4 to one of these new Celeron Ds, you don't have the right to continually make comparisons saying that they have equal performance clock for clock. Everyone knows that the Prescott P4 was slower than the Northwood P4 at the same clock speed (barring applications with SSE3 optimizations), due to the fact that Prescott had a longer pipeline and a higher latency L2 cache. A doubling of the L1 cache and L2 caches still didn't overcome these deficits on Prescott.

If anything, I would think that the new Celeron Ds are comparable to the Prescott P4, perhaps just a little bit behind it on a clock for clock comparison. It depends on where the "fine line" is on L2 cache size being just enough and too little. As we witnessed from the Northwood Celeron to Prescott Celeron, a doubling of the L1 and L2 cache had a MUCH bigger effect on performance (a 10% increase clock for clock) than the Northwood P4 to Prescott P4, where virtually no improvement, and actually some slight decreases in performance were noticed. That was due to the fact that 128 KB of L2 cache just isn't enough on the Netburst architecture to prevent pipeline stalling and flushing. The 256KB L2 on the Prescott Celeron seemed to be the Messiah, greatly increasing performance despite that fact that it still had the same slow latency L2 and increased pipeline length of its big brother P4. Still, comparisons of the Prescott P4 to the Prescott Celeron showed that the diminished L2 cache of the Celeron D still hampered its performance. The question now is whether the 512KB L2 cache will show similar gains in performance that were shown in the move from Celeron to Celeron D, and whether this gain in performance will bring the new 65 nm Celeron D up to the same level of performance as the 65 nm Pentium 4s (which, by the way, still use the same pipeline length and slow cache latency as the Prescott P4, explaining why we don't see any real improvement with the 65 nm P4 over the 90 nm P4 in terms of performance on a clock for clock comparison).

According to the Extreme Systems link you posted (which I gave to you), a 5.0 GHz 65nm Celeron D games as well as a 4.5 GHz P4, so there is obviously a noticeable performance hit going from 1MB L2 to 512KB L2, meaning that the new Celeron Ds SHOULD NOT EQUAL THE PERFORMANCE OF A NORTHWOOD P4 ON A CLOCK FOR CLOCK COMPARISON. Saying different is just ignorance. :?

Still, the new 65nm Celeron Ds are a great processor, without question the best single core Intel processor yet produced. If it can easily overclock to 5 GHz on air, on stock voltage, using the stock Intel hsf, staying under 50C, consuming less than 130 watts, and then go toe to toe with a 3 GHz Opteron and come out the winner, then it definately has my vote. :wink:
 
Unless you can cough up a link to some benchmarks comparing a Northwood P4 to one of these new Celeron Ds, you don't have the right to continually make comparisons saying that they have equal performance clock for clock.

It's not hard to find comparisons. The chip is within 1-2% as fast as the original P4(533mhz series). Some tests I've seen show it ahead, some a bit behind, but quibbling over .1Ghz isn't really meaningful. The thing is, the 360 overclocked will run like a Northwood in the ~5Ghz range, give or take, IF such a chip could be run that fast. I don't see many people OCing a 3.06 to 5Ghz, though I'm sure someone did it once or twice to see if it could be accomplished.

It's cheap, fast, and going to be great for games.

While it won't do what you listed, it will do 5.2Ghz with any aftermarket cooler, use about 150W, and temps will be at about 55C. Speed-wise, it appears as if it is comparable to a 3.8-4ghz 805. Just a lot less heat, normal cooling, and way less power as well. And that's with the clock set to 200mhz. The beauty of it is that the sepcs are JUST what the current boards can handle. You don't need a $180 4-phase board from ASUS and a super-fancy air cooler. It runs hot, but not unreasonably so.

That was the main problem with the 805, in fact - the thing ran hot enough to seriously stress the motherboard itself. 200W under full load is also crazy. If I can get 80 or even 90% of the results with 2/3-3/4 of the heat and power, sign me up.

BTW:
If the clock is jumped to 250mhz and you go for water-cooling, that's 6.5Ghz and a 3dMArk2005 score in the 12-13,000 range. I am figuring that 200mhz is the sweet spot, though - almost any board these days can handle that and the power/heat stays at reasonable levels.
 
Sign me up! Send me the chip and I'll write the article, which will then appear on the front page of a hardware site...can't promise which hardware site though.

I'll return it following the article.
 
I assumed he was including Pentium-D's, which are dual-core Pentium 4's, and suggested the 920.
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Well, he didn't stipulate, but i would assume dual-core was an option too. It's just that some people like to push their opinions, away from a posters listed options., which is fine if you add it as an alternative, or something. But some guys just say....get this,or that without really acknowledging the posters query. :wink:
 
Dude,

The Pentium 4 805 is perfect for OC'ing. Toms took the 2.66 Ghz 533Mhz processor all the way to 4.1 Ghz. That more than 50% OC'd. See the link here for thier article.

http://forumz.tomshardware.com/hardware/modules.php?name=Forums&file=viewtopic&p=1108460#1108460

On Newegg the 805 is going for $104, you can't beat that. I had it OC'd all the way to 3.6 Ghz with the stock Intel fan, and have it OC'd all the way to 4.0 Ghz with a water cooling rig. Who cares if it uses more power OC'd like that, my computer screams....

ASUS P5WD2-E Premium
Intel P4 805 2.66 533 Mhz Processor (OC'd to 4.0 GHZ)
2 Gig OCZ 667 Mhz Memory
EVGA GeForce 7900 GT 256 Meg GDDR3 PCI Express 500Mhz/1500Mhz
2 X WD 74 Gig 10000RPM Raptor HD
19" Viewsonic VX922 Flat Panel Display
Thermaltake Big Water 745 Liqiud Cooling
 
for P4 with 478pins, Northwood series' extreme frequency is about 3.6GHz

and Pressoct series' extreme frequency is about 4GHz

there are some exceptions for sure

about P4 for LGA775, 5XX and 6X0 series are both has a extreme frequency at 4GHz to 4.2GHz

the 6X1 series can always oc up to 4.5G or higher and has a better temperature controlling.

above all are all single core P4 series
Click to expand...

I donno about EXTREME, cuz my Northwood D hits 3.5 with a stock heatsink and some DDR 500.
It loves the winter time, and keeps me nice and warm. :lol:
 
Whats a good P4 i can OC and will WC b required.
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I think you should have asked what's a good Celeron to O/C to 4 GHz, as that's what most posters are recommending. They overlooked the P4 part of your question. :?

Look at the date of this thread. When he originally asked what P4 to overclock to 4 GHz, I replied with P4 506. Then later guy posted back that he had decided to get a dual core cpu. Only after this thread died and then was brought back to life by the leg humpings of Plekto and Crashman, did I feel it necessary to finally take Plekto to task for his idiotic "Celeron D is same as Northwood" comparisons, calling him out to bring forth links which support his false claim.

The original topic of this thread is DEAD. Now it's only purpose is to facilitate in my pwning of Plekto. :)
 
Yes, you might be able to come close with a Dual Core 920, but you have to pay a bit over $200 for that, $212 for a retail box. But the 805 is right around $100, on Newegg. I stand by my answer, take the $100 you save when you buy the 805 and save it for a Conroe in the future or a better graphics card now. Tom's was able to compete with the performance of the Pentium Extreme processors (costing around $1000) when they OC'd the 805 to 4.1 Ghz.

Also, if you run the 805 on a 975 chipset motherboard, and OC it to 4.0 GHZ you will be OC'ing the processor to 800MHZ. That only stresses the processor, because the MB itself is already set to run as high as 1066Mhz. If you keep the processor cool, you can buy a Conroe a year from now when they are cheaper and run it on the same MB, Memory and Graphics card.
 
The 920 might come close? The 920 overclocks higher than the 805. You're missing the point why the 805 was chosen: it was the cheapest, lowest clocked CPU. A 60% overclock sounds better than a 40% overclock, even if the 40% overclock yeilds the higher frequency.

The question as I recall was for the BEST processor to overclock, not the cheapest. The 920 assures a higher quality core.
 
The 920 might come close? The 920 overclocks higher than the 805. You're missing the point why the 805 was chosen: it was the cheapest, lowest clocked CPU. A 60% overclock sounds better than a 40% overclock, even if the 40% overclock yeilds the higher frequency.

The question as I recall was for the BEST processor to overclock, not the cheapest. The 920 assures a higher quality core.
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920'S are getting harder to find though, and in Canada, more expensive than the 930. If i were you, i would get the 930.
 
Whats a good P4 i can OC and will WC b required.
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I think you should have asked what's a good Celeron to O/C to 4 GHz, as that's what most posters are recommending. They overlooked the P4 part of your question. :?

Look at the date of this thread. When he originally asked what P4 to overclock to 4 GHz, I replied with P4 506. Then later guy posted back that he had decided to get a dual core cpu. Only after this thread died and then was brought back to life by the leg humpings of Plekto and Crashman, did I feel it necessary to finally take Plekto to task for his idiotic "Celeron D is same as Northwood" comparisons, calling him out to bring forth links which support his false claim.

The original topic of this thread is DEAD. Now it's only purpose is to facilitate in my pwning of Plekto. :)I'm not ragging on you, just the ones who sidestepped the P4 option altogether. You responded to a post...ok, but you didn't force that train of thought on the OP. :wink:
 
for P4 with 478pins, Northwood series' extreme frequency is about 3.6GHz

and Pressoct series' extreme frequency is about 4GHz

there are some exceptions for sure

about P4 for LGA775, 5XX and 6X0 series are both has a extreme frequency at 4GHz to 4.2GHz

the 6X1 series can always oc up to 4.5G or higher and has a better temperature controlling.

above all are all single core P4 series
Click to expand...

I donno about EXTREME, cuz my Northwood D hits 3.5 with a stock heatsink and some DDR 500.
It loves the winter time, and keeps me nice and warm. :lol:

And my Northwood 2.8 400FSB overclocks to 3.6 completely stable on stock cooling. I reckon with water cooling i could reach 4.2ghz.
 
My 2.8c becomes unstable at 3.3 and with 5:4 ram freq.
So, went back to 3.2 and 1:1 with ram at 460mhz. Never thought these Buffalo sticks would hang so good at these frequencies.

And never heard about a 2.8c that passed 3.6-3.7. Not impossible though... 8)
 
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