sandybridge E, 180W??

[wlee15]

3820 is a quad + no overclocking = fail.

http://www.cpu-world.com/CPUs/Core_i7/Intel-Core i7-3820.html

Basically, the 3820 is the place-sitter for that mythical person who wants to buy a 6-core capable motherboard now but only wants 4 cores, at least for now. Then, eventually, you could use this somewhat-outdated platform with a 6 core ib-e.

Remember that Sandy Bridge-E can use 125, 166, 200 and 250 bclk frequencies which combined with the multipliers that i7-3820 has available and you actually have more control than the K series.

 

[Vic Vega]

I have no idea what my X4 965 @ 4.1GHz is pulling but it has to be in the 150 watt range, maybe higher? I don't really care. I have a silent cooler, the PC is silent, doesn't overheat.

As long as it's stable, quiet and cool I don't care about the wattage rating at all.

 

[blackened23]

That's total system though, not just the CPU. 180W for just the CPU is borderline crazy. Although, if the performance is there it doesn't really matter much. Also, will be interesting to see what their idle power-usage is. That is what is really important anyway. Assuming perf/watt isn't low (why should it be?) it doesn't really matter how high max power-consumption is, as long as it sips when you're not using it.

Current SB's not overclocked run around 60W idle and around 160W at load. If you overclock your SB to 4.6+ it can potentially be up to 250W at load depending on what your vcore is.

I distinctly remember seeing this on a review at tomshardware, for the power consumption of the CPU alone. Personally I don't care about power consumption that much but, it will definitely effect overclocking headroom. The old lynnfields had super high power consumption at overclocked speeds, and the SB-E seemingly will draw more power than those.

 

[Nemesis 1]

I believe SB-E will be 130W and i have no idea what that 180W consumption they mention on VR-Zone link is.

I do believe that the CPU alone will have higher power consumption than 6-core Gulftown, but overall consumption of the platform could be lower due to more I/O logic that have been integrated directly in to the CPU die of SB-E (PCI-e etc).

So perhaps the CPU will consume more power but the platform overall power consumption will not be that much higher than X-58 and 6-core Gluftown CPU (yes i know we have quad memory controller that will add more power + PCI-E Gen 3).

Let me get this right. You believe a a 6 core SB is going to use more power than a 6 core gulftown . Just exactly what is it thats going to change sb power consumption that much for the SB-e to be a power pig and HOT.

 

[Vesku]

Clockspeeds? All signs point to aggressive turbo settings.

Would make a lot of sense if Intel wants to drown out the BD launch with eye popping review site benchmark results.

 

[Nemesis 1]

Current SB's not overclocked run around 60W idle and around 160W at load. If you overclock your SB to 4.6+ it can potentially be up to 250W at load depending on what your vcore is.

I distinctly remember seeing this on a review at tomshardware, for the power consumption of the CPU alone. Personally I don't care about power consumption that much but, it will definitely effect overclocking headroom. The old lynnfields had super high power consumption at overclocked speeds, and the SB-E seemingly will draw more power than those.

Stop with the BS, Were talking about the cpu and not the system.

AT got 111w@4.4ghz cineabench 11.5 5 watts idle

at stock 86watt. 3.4 ghz 5.watts idle

 

[grkM3]

Current SB's not overclocked run around 60W idle and around 160W at load. If you overclock your SB to 4.6+ it can potentially be up to 250W at load depending on what your vcore is.

I distinctly remember seeing this on a review at tomshardware, for the power consumption of the CPU alone. Personally I don't care about power consumption that much but, it will definitely effect overclocking headroom. The old lynnfields had super high power consumption at overclocked speeds, and the SB-E seemingly will draw more power than those.

Wow you need to stop spreading you BS.Here is my 2600k with hyperthreading on and it consumes under 2 watts idle.

I cant believe you just said sandys consume 60watts idle,man where the hell do you come up with the crap.

I ran my chip at 4.5ghz with all cores at 4.5,not just one and I hit 101 watts full load on intel burn test with 8 threads running.

that was using the energy hardware enabled on the board and it was using all 24 phase vrms to help it out.

 

[AnandThenMan]

nm

 

[jvroig]

3820 is a quad + no overclocking = fail.

So eloquently said.



I found this in AT: http://www.anandtech.com/show/4626/info-on-sandy-bridgee-pricing
From the link, it says the top end hex-core only has a base of 3.3 and turbos to 3.9 (max, so I assume this is the single-core turbo).

Given these clockspeeds, I find it extremely hard to believe that it will go over its 130W TDP, or need a peak of 23A on the 12V rail. I just can't see it needing that much considering the clocks are conservative.

 

[RussianSensation]

You actually believe that?

1.7 Watts at 1.6ghz, based on Gigabyte's bulletproof software monitoring application.

Also, Q9450 3.0ghz only consumes 16 Watts of power @ 1.38V. Dynamic Saver application FTW!

It's the truth bro, I swear. :hmm:

 

[AnandThenMan]

I edited out my post, was thinking of something else, and didn't want to start anything. :sneaky:

 

[grkM3]

Its 1.7-2.0 watts with 24 vrms running and its 3.5-4.5 watts idle with 12 vrms running

Im using an extreme example of how much they idle because not everyone has a high end board but they are no where near 60 watts!

 

[blackened23]

Wow you need to stop spreading you BS.Here is my 2600k with hyperthreading on and it consumes under 2 watts idle.

I cant believe you just said sandys consume 60watts idle,man where the hell do you come up with the crap.

I ran my chip at 4.5ghz with all cores at 4.5,not just one and I hit 101 watts full load on intel burn test with 8 threads running.

that was using the energy hardware enabled on the board and it was using all 24 phase vrms to help it out.

2W at 1600 MHz. Good stuff man, congratulations you've now tested how much power your system uses when its throttled down to the level a computer used 10 years ago.

Now maybe we can get back to reality and test it at its rated speed? shrug. I could very well be wrong, I did see something like that in a tomshardware review a while back. (concerning SB power consumption) I could look for more reviews concerning SB power consumption but i'm pretty sure i've seen multiple reviews showing that power usage can go over 200W when overclocking to 4.6+. Standard disclaimer, I could be wrong, I could check but I frankly don't care enough

 

[grkM3]

2W at 1600 MHz. Good stuff man, congratulations you've now tested how much power your system uses when its throttled down to the level a computer used 10 years ago.

Now maybe we can get back to reality and test it at its rated speed? shrug. I could very well be wrong, I did see something like that in a tomshardware review a while back.

This is what they idle at stock 100% stock idle here.

You do know that they idle at 1.6 right? Everything you say is made up.

I ran all 4 cores at 4.5 and saw peak 101 watts running 8 threads of linpack

You claim these draw over 200 watts when thete tdp is 95 watts and intel has always ran under tdp at stock clocks full load.

Have you seen how small a stock sandy heat sink is? 280watts lol ok bud

 

[blackened23]

This is what they idle at stock 100% stock idle here.

You do know that they idle at 1.6 right? Everything you say is made up.

I ran all 4 cores at 4.5 and saw peak 101 watts running 8 threads of linpack

They only idle at 1.6 if you enable speedstep in the BIOS. AFAIK most reviews use rated speed, 3.3ghz to test power consumption - because it makes no sense to test your power at 1600mhz. Like I said though, I could be way off, i'll try to find some old reviews later.

 

[grkM3]

You dont need to find reviews i just saw 130watts at 4.8 ghz on 4 cores running 4.8ghz

You are way off and these chips are supposed to have speed step on.we are talking idle power consumtion and no chip idles at 3ghz.

 

[blackened23]

You dont need to find reviews i just saw 130watts at 4.8 ghz on 4 cores running 4.8ghz

You are way off and these chips are supposed to have speed step on.we are talking idle power consumtion and no chip idles at 3ghz.

Yeah I just doubled checked some reviews and I was wrong....most of the reviews show 115ish at 4.6 at closer to 140 at 5ghz (2600k)

 

[grkM3]

here is my chip with 4 cores running at 4.5 each and 1.39 volts with everything off no speed step or turbo and its 21 watts idle.We would melt the pins on the board if the chip pulled 200watts and most def burn shit up at 280.That would be about 3 volts and 8ghz to pull that much current

lol at 250 watts you would need 22amps of current on the 12v rail going into the cpu

 

[gramboh]

Some people are clearly confusing the CPU socket power draw with total system power. 250-400+ watts on a CPU? WTF?

 

[Nemesis 1]

Remember that Sandy Bridge-E can use 125, 166, 200 and 250 bclk frequencies which combined with the multipliers that i7-3820 has available and you actually have more control than the K series.

Ya its been talked about already. and for any to say They know what a particially locked SB-E is good bad or ugly is eating froot loops for breakfest. The money is pretty dang good , It won't cost a lot more than than presently priced 2600k and mid range M/B . About$150 . Memory and M/B . Looks like Intel is telling the P/S companies to power up because of the extreme O/C these things will do . The 4 core should hit between 5-5.5 the majority of all chips . Also I am hopeing that intel drops the pricies on 1155 2600k to $10 below this level all the way down the line . As the 2600k won't beable to keep pace with the transitor budget of SB IGP absent from the SB-e. Looks to me like this chip is aiming at BD highend.

 

[Nemesis 1]

here is my chip with 4 cores running at 4.5 each and 1.39 volts with everything off no speed step or turbo and its 21 watts idle.We would melt the pins on the board if the chip pulled 200watts and most def burn shit up at 280.That would be about 3 volts and 8ghz to pull that much current

lol at 250 watts you would need 22amps of current on the 12v rail going into the cpu

What did you use for the snap shot Windows7?

 

[AnandThenMan]

Is this thread about SB-E, or about random CPU power draw numbers? D:

 

[wuliheron]

Is this thread about SB-E, or about random CPU power draw numbers? D:

Its actually someone fishing for lottery numbers.

 

[AtenRa]

Let me get this right. You believe a a 6 core SB is going to use more power than a 6 core gulftown . Just exactly what is it thats going to change sb power consumption that much for the SB-e to be a power pig and HOT.

SB-E is made at 32nm, same as Gulftown
SB-E will have more L3 cache than Gulftown
SB-E will have more logic integrated inside the processor die, Quad memory channel vs triple, PCI-e Gen 3 etc.

The CPU alone(SB-E) could draw more power than Gulftown CPU but overall system power usage could be lower than X58 + Gulftown.(if we keep it with triple memory)

 

[RussianSensation]

Some people are clearly confusing the CPU socket power draw with total system power. 250-400+ watts on a CPU? WTF?

Xbitlabs - Total system power consumption - idle:

i7 2600k @ 4.7ghz = 42.8 W

Xbitlabs - Total system power consumption (CPU loaded only) - load:

i7-2600k @ 4.7ghz = 190.5 W

CPU Power consumption between load and idle = 190.5 - 42.8 = 147.7 Watts

Looking at less efficient processors, they can easily consume 250W+ of power in overclocked states. Phenom II X6 @ 4.0ghz gets up there.

Here from another source (full system power consumption - only CPU loaded):

Core i7 860 stock - Idle = 150.5 W
Core i7 860 3.7ghz - Load = 425.7 W

Difference between Idle and Load State = 275.2 Watts (no GPU load!). This is coming from overclocking the CPU and loading it.

Here is another CPU Power Consumption analysis:

Core i7-960 3.07ghz (Total System - CPU Loaded only) = 190 W
Core i7-960 4.2ghz (Total System - CPU Loaded only) = 317 W

Guess what? Where did that extra 127 Watts come from? From increased VCore/QPI voltage on the CPU and increased frequency which resulted in a huge CPU power consumption increase. The increase had nothing to do with RAM, Hard Drives, GPU, Mobo since the power consumption of those components is already included in the original 190W.