4.1 ghz with Pentium D 805!

yeah i just saw that too. i was looking for a price/performance processor. i think i found a winner lol
 
I'm tempeted to buy this processor but with Core Duo 2 just around the corner I feel confused.
 
Too bad it uses almost 200 watts at that overclocked speeds. Even in my main rig, I refuse to use prescott derived cores. The heat inefficiency of those processors is just mind boggling. I'm still stuck using a northwood. The X2's or the Core Duo's are very tempting and the winner of that round will probably be my next upgrade.
 
Anyone notice how the 25 paragraph article was 45 pages long? Can we say "Advertising whores"
 
The Doc said:
I'm tempeted to buy this processor but with Core Duo 2 just around the corner I feel confused.
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Considering how well the regular Core Duo OCes, I imagine the desktop variant will do it brilliantly as well. And even at 4.1 the 805 only narrowly edged out the FX60 at stock, the Core Duo 2 at stock 2.4 is thrashing OCed FX60s, so you can only imagine what a good OC on a Core Duo 2 would lead to.

EDIT: Also, to get it to 4.0 and above, they needed water cooling. A 920 can do that easily on air, and you get double the cache as well. The 805 may be cheaper, but I personally refuse to go through the risks or hassle of a water cooling setup.
 
Rix2357 said:
Too bad it uses almost 200 watts at that overclocked speeds.
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"it" is not just the processor, but also the losses at the motherboard voltage regulators.

On page 14/15 you can see that the last 100MHz bump added 70W to the power consumption at full load (that implies a voltage increase that doesn't match the article... sloppy work THG). Most people probably wouldn't bother with that minor performance increase at the expense of 30% higher CPU power usage. I don't with my X2 @ 2.55GHz. That's the highest I can get with a 0.025v bump. I can get 2.65GHz with a 0.125v bump but it's not worth it: 125W max @ 2.55GHz vs 150W max @ 2.65GHz, not including voltage regulator losses which are ~30W-38W more @ max (which the CPU doesn't ever really run at).
 
I might look into getting one of these, but I'll probably just wait til Conroe or AMD2
 
Thats why I keep my 920 @ 3.9Ghz, it will do that speed at default voltage and runs nice & cool. (Presler 65nm core, not 90nm like the 805 & 8_0's)

I can run it at 4+Ghz, but its not worth the extra heat & voltage required to get there.

I was hoping my 975 mobo would support Conroe, as they were saying the 975 chipset would support it. But unfortunately early 975 motherboards wont!

If you're on the fence wait, a little longer to get a motherboard that will definitely support Conroe. Then possibly get an 805 or 920 processor to hold you over until Conroe is available and reasonably priced which might not happen at first launch.
 
The amount of power that thing sucks down in purely insane. For the love of GOD, get wait for a conroe, or get x2.
 
chrisf6969 said:
Thats why I keep my 920 @ 3.9Ghz, it will do that speed at default voltage and runs nice & cool. (Presler 65nm core, not 90nm like the 805 & 8_0's)
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Not bad for a B1 stepping CPU. ;)

The C1 965 EE on page 15 is pretty impressive. Despite having a 130W rating, it runs much cooler under load than the other Pentium D CPUs, including the "95W TDP" 805. The 955 EE seems to be a B1 stepping since it's clustered around other B1 CPUs on the chart, but it also has one sSpec with the C1 core.

C1 cores are on the 950 (SL95V only), 940 (SL95W only), 930 (SL95X only), 965 EE (SL9AN) and 955 EE (SL94N only). Those look like the ones to get if you don't want to wait for Conroe. Or if the C1 core 925 is cheap, that might be even better than the 805.
 
mwarps said:
The amount of power that thing sucks down in purely insane. For the love of GOD, get wait for a conroe, or get x2.
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Or they could of just clocked it to 4Ghz or 3.8Ghz, at 3.8Ghz it hardly consumes more power then default, still a great processor for a great price, but I'm not budging as I already have something faster. (X2-3800 that can go to [email protected])
 
sculelos said:
Or they could of just clocked it to 4Ghz or 3.8Ghz, at 3.8Ghz it hardly consumes more power then default, still a great processor for a great price, but I'm not budging as I already have something faster. (X2-3800 that can go to [email protected])
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There's a 150W difference between the system at idle and full load. That is utterly insane.

I fold. 150Wis utterly huge.

I am going to do the math to determine the difference in power costs this afternoon. It's a lot of money.
 
mwarps said:
There's a 150W difference between the system at idle and full load. That is utterly insane.

I fold. 150Wis utterly huge.

I am going to do the math to determine the difference in power costs this afternoon. It's a lot of money.
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(system power consumption from wall in Watts)/(1000 W/KW) * 24 * electricity rate per KW-hour = daily cost

A system that draws 512W from the socket (THG's 805 @ 4.1GHz example) at $0.10/KW-H = (512/1000)KW * 24 hours * $0.10/KW-H = $1.2288/day, which is pretty high (at THG's 805 @ 4GHz example, it's $1.0536/day or the 965 EE is $0.6427/day). Of course you don't need a fast 3D card for a folding machine and that will reduce power consumption a bit.

If I folded with my X2 @ 2.55GHz (with a bunch of hard drives and extra junk inside the case), it would cost $0.816/day at $0.10/KW-H. Luckily the system I use most of the time uses only ~15-20W on average for what I do (laptop). If I folded on that laptop (under 45W with the LCD at full brightness, HD on and CPU at 100%), it would cost around $0.108/day. :D

Next month AMD is introducing 35W X2 3800+ and 65W X2 4800+ desktop CPUs so it should be more interesting for power consumption and performance/Watt comparisons this summer.
 
I am all for these cheap cpu's, but I hate how these review sites seem to just ignore the fact that they are using a $280.00 Mobo, $250.00 Memory and a $70 HS&F to achieve their end results.

These are Canadian prices BTW, before GST & PST

They do mention to use good quality stuff, but what I would like to see is how low could you go for components and still achieve the 4.1ghz clock.
 
Jerrad said:
I am all for these cheap cpu's, but I hate how these review sites seem to just ignore the fact that they are using a $280.00 Mobo, $250.00 Memory and a $70 HS&F to achieve their end results.

These are Canadian prices BTW, before GST & PST

They do mention to use good quality stuff, but what I would like to see is how low could you go for components and still achieve the 4.1ghz clock.
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$250+ mobo, yes.

But I'm using "cheap" 2 x 1Gb DDR2-667 cas4 - $145 ram to achieve my 4Ghz clock. You don't need DDR2-800, decent DDR2-667 performs about the same.
 
This is old news though. There have been various threads on this thing getting there.

http://hardforum.com/showthread.php?t=1026502&page=2&pp=30&highlight=805+3800

There was a site that had it running at 6-8Ghz... that was impressive... it was an italian site in english.

The only problem is that it runs hot.

You don't need an expensive mobo. If it has decent bios options it should "OC" well. Keep in mind 200FSB is 4gig on this chip!!!

The preslers that a bit pricier are better bang for the buk
 
pxc said:
(system power consumption from wall in Watts)/(1000 W/KW) * 24 * electricity rate per KW-hour = daily cost

A system that draws 512W from the socket (THG's 805 @ 4.1GHz example) at $0.10/KW-H = (512/1000)KW * 24 hours * $0.10/KW-H = $1.2288/day, which is pretty high (at THG's 805 @ 4GHz example, it's $1.0536/day or the 965 EE is $0.6427/day). Of course you don't need a fast 3D card for a folding machine and that will reduce power consumption a bit.

If I folded with my X2 @ 2.55GHz (with a bunch of hard drives and extra junk inside the case), it would cost $0.816/day at $0.10/KW-H. Luckily the system I use most of the time uses only ~15-20W on average for what I do (laptop). If I folded on that laptop (under 45W with the LCD at full brightness, HD on and CPU at 100%), it would cost around $0.108/day. :D

Next month AMD is introducing 35W X2 3800+ and 65W X2 4800+ desktop CPUs so it should be more interesting for power consumption and performance/Watt comparisons this summer.
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It might even cost more than that on the desktop since 512W from the wall is rather low. Remember that PSU's aren't always that efficient, I'd guess 70-80% on average. Even if the system pulled 450W DC, at 75% efficiency, the PSU is pulling 600W from the wall.

You might have factored that in since you said 512W from the wall, but I thought I would throw that in :).
 
I thought they broke some 5GHz barrier not too long ago on a P4 3.4EE chip? :confused:

I could be wrong, but I do remember reading something similar about it.
 
Yes but this is a cheapie 2.66 dual core $130 chip. It was on some kind of nitrogen cooling. SuperPi was 16 I think. Crazy.

I can't remember the site.
 
Remember, guys. The point is not how fast this little chip will go, or what the performance is. It's about doing it for a hundred and thirty bucks!!

The "big" FX and EE CPU's will still set you back close to a grand. Think about it.
 
why are you guys complaining? For 130 dollars no other chip will get you the performance this thing can. I know Conroe is coming and Conroe will completely own this thing while using less power, but for people who just have to get a cheap system now the 805 is the way to go.
And stop comparing to the FX 60 or the 965 EE, they cost around a grand..
 
robberbaron said:
I'd rather get a Celeron M 430 for that price point...
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Where can you even buy this chip? Good luck getting a good mobo for it without paying 180+ bucks.
 
I absolutely love the 805 but the power consumption is just insane when you OC it, I cant get around that.
 
wee96 said:
I absolutely love the 805 but the power consumption is just insane when you OC it, I cant get around that.
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Well it will vary with each processor. He used a lot of voltage to get to 3.8ghz and a shitload to get to 4ghz. Some people can get to 3.8 without any voltage increases. His testing methods are also a bit vague.

By comparison, my overclocks and stock obtained much lower numbers than Tom's. You can see my results here. His stock numbers were almost the same as my overclocked numbers.
 
cupholder2.0 said:
Where can you even buy this chip? Good luck getting a good mobo for it without paying 180+ bucks.
Click to expand...
pcconnection is expensive, but you can (pre)order it: http://www.pcconnection.com/ProductDetail?sku=6761054&SourceID=k40132

LOL, it's almost the same price here in CAN$ as it is in US$ above: http://www.softwarecity.ca/shop/intel/item/prod.asp?item_num=BX80538430

It should go for ~$145 when availability is better. The official price at 4/23 "introduction" (it started showing up before 4/23) was $134.

That's not a bad CPU. 13 x 200 = 2.6GHz. As mentioned above, overclockable motherboards for it are expensive and the 805 @ 3.8GHz+ has the advantage of 2 cores.

There's not a lot of buzz about the Pentium D 925, but IMO that should be even better than the 805. It's supposed to cost $178 at the same time Conroe is launched. The 925 has 3GHz Presler cores with 2MB each, just without VT. AFAIK, that's the only functional difference between it and the 930, which is being phased out. The C1 cores seem to be running much cooler than the B1 cores.
 
I have mine at 3.2 prime tested at stock voltage. UP to 3.7 on the stock cooler, I need better cooling for stablility. Core 1 is the weak core, it needs voltage at anything past 3.4.
 
how do these chips perform in single threaded apps like games? and is the power consumption bad when its oc'ed around 3.2-3.4ghz? i just bought one last weekend, but am still waiting for the mobo and ram to come in. as it's going to replace the system in my sig as my main rig, hopefully i'll see some gains compared to my s754 3200+ newcastle in single threaded stuff.
 
This processor will consume alot of power and generate alot of heat. I wonder what is life span of this processor, 2 year max.
 
Haven't people been clocking 805's like crazy already? Why is this just gaining attention now?
 
JSClark said:
I thought they broke some 5GHz barrier not too long ago on a P4 3.4EE chip? :confused:

I could be wrong, but I do remember reading something similar about it.
Click to expand...

5Ghz+ has been around on OCed P4s for a while now. The 9xx chips are hitting 4.5+ easily on good air, and 5+ on water pretty reliably. There was someone on extremeOC that had one at or near 6Ghz stable for hard use on phase change.
 
gwai lo said:
Haven't people been clocking 805's like crazy already? Why is this just gaining attention now?
Click to expand...

toms hardware is intel's bitch... its just a big advertisement becuase conroes are going to sell so fast and they don't want to be stuck with a lot of unsold chips.
 
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