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sandybridge E, 180W??

piesquared

piesquared

Golden Member
JHC no wonder there is talk of shipping without a cooler, they'd have to ship the thing in a shoebox.


On top of this, we're hearing that although the rated TDP is 130W these beasts are consuming closer to 180W and that's without even overclocking them. In fact, according to PSU design guidance we've seen, Intel is telling power supply makers to make sure their Sandy Bridge-E PSUs can cope with a peak current of 23A on the 12V2 rail and based on an 80 percent or better efficiency rating of the PSU.
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http://vr-zone.com/articles/exclusive-sandy-bridge-e-to-ship-without-cooler/13296.html#ixzz1V4rfhyNl
 
Two extra cores adding 80+ Watts? Are they going to ship these things at about 4GHz clockspeeds?
 
Vesku said:
Two extra cores adding 80+ Watts? Are they going to ship these things at about 4GHz clockspeeds?
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Not just the extra cores. Up to 15MB L3 cache, quad channel DDR3 controller, 32 PCI-E lanes, etc. A lot of extra hardware on these compared to Sandy Bridge chips.
 
Im not worried, im sure my i7 930@ 4.2 pulls that much already.

Desktop SB-E is not exactly aimed at the low power crowd if you hadnt noticed. Im sure ther Xeon SKU's will have lower power draw.
 
Great news for water cooling manufacturers 😀

Seriously though, if its running at 180W at stock, you're going to need some serious cooling if you're planning on overclocking, which I imagine a lot of future SB-E owners are.
 
PreferLinux said:
That may be peak power, not average power. And average power is what Intel's TDP has always described.
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That would be my assumption as well, probably the theoretical max power with every single transistor on the CPU switching at the same time or something like that. Whereas Intel's TDP rating is the power consumption you will actually see during real-world usage.
 
Looks like 130W TDP, with 180W at peak 'short-term' turbo.

The cooler designers will need to cope with 130W, but the PSU designers will need to handle 180W.
 
wuliheron said:
Its their first V8 for racing. Ivy bridge will be the economy car.
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for the umpteenth time, yes, Ivy Bridge is coming to s1155 first just like Sandy Bridge, however also just like Sandy Bridge we'll have Ivy Bridge for s2011

and please stop using car analogies

if any thing SandyBridgeE will be more like a dump trunk capable of winning the Indy 500 however that doesn't mean the 1155 SandyBridge or IvyBridge CPUs won't be able to keep up with or even give SBE a run for its money when the extra cache/cores/threads/lanes/etc aren't utilized
 
I find that really hard to believe if they claim 180 watts for stock cpu. a 2600k only uses about 55-60 actual watts under full load at stock speeds. please tell me how adding 2 more cores and 7 more mb of cache is going to make that cpu consume over 3 times the power of a 2600k.
 
toyota said:
I find that really hard to believe if they claim 180 watts for stock cpu. a 2600k only uses about 55-60 actual watts under full load at stock speeds. please tell me how adding 2 more cores and 7 more mb of cache is going to make that cpu consume over 3 times the power of a 2600k.
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I agree its a little over the top. However it is going to have a much beefier memory controller to support the quad channel ram and double the PCIe lanes but that shouldnt have this large of an effect.
 
Wait i think its 180w because there was a 10 core es sqmple on ebay a few months back.they are probably telling the makers toto plan ahead for there 10 core chips.
 
180W should be an estimated max and most probably an overestimation of what the actual TDP should be. There can be other reasons why Intel chose to not include a stock cooler. In fact I don't think it is necessary anyways to have a stock cooler as those who runs stock with these should be banned from ever building a PC.

It's funny to see that some would come to a conclusion that inclusion of a sealed WC or not including any heatsink at all would mean that the manufacturers are having trouble managing heat output.
 
toyota said:
I find that really hard to believe if they claim 180 watts for stock cpu. a 2600k only uses about 55-60 actual watts under full load at stock speeds. please tell me how adding 2 more cores and 7 more mb of cache is going to make that cpu consume over 3 times the power of a 2600k.
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What's the stock speed of this hex core going to be? If they ship it at 4GHz stock, then 500-600MHz more of Turbo, then yeah, I can believe the TDP ratings floating around. I'm sure highly-overclocked 2500K & 2600K pretty much have 130W+ TDP anyway.

grkM3 said:
This doesn't add up,ohhh wait its from amdzone lol.
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VR-Zone, not AMDZone. I don't see AMDZone mentioned anywhere in the linked article. Don't make this an AMD vs Intel thread.
 
i7 3820 is ever so slightly less expensive than a 2600K? I suppose the lack of overclocking would make it less attractive for enthusiasts. Are all of the above hex, or is the 3820 a quad?

I'm also confused by the naming scheme. I thought the "2" in 2600 meant "2nd generation", so I expected "3" to belong to Ivy Bridge, but instead they are going ahead and giving the "3" designation to high-end Sandy Bridge parts, instead of 28xx and 29xx?
 
jvroig said:
What's the stock speed of this hex core going to be? If they ship it at 4GHz stock, then 500-600MHz more of Turbo, then yeah, I can believe the TDP ratings floating around. I'm sure highly-overclocked 2500K & 2600K pretty much have 130W+ TDP anyway.


VR-Zone, not AMDZone. I don't see AMDZone mentioned anywhere in the linked article. Don't make this an AMD vs Intel thread.
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I didnt even know there was a amdzone,vr-zone is biased towards amd is what i ment.ta

The 180watt makes sence for a 10 core 20 thread cpu and they might get that down to 130 on 22nm but no way a 6 core is pulling that many watts with no gpu
 
It's not odd, it's just like the last time. i7 920 was $5 cheaper than the top Lynnfield i7 when it was released.

This doesn't actually mean it's cheaper to the user -- I honestly think that both AMD and Intel shift a lot of price from the processor to the chipset these days, as integrating more of the NB on-die keeps making the chipset simpler, yet it's price doesn't go down.

Just like with 920, the equivalent MB is likely considerably more expensive than a 1155 one.
 
khon said:
So the i7-3820 basically costs the same as the i7-2600 ? Seems a bit odd.

Though I suppose the i7-920 and the i7-860 also cost about the same, so it is at least consistent on Intel's part.
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The low end 2011s are quads i think with limited overclock.so its basically a 2600 with quad channel memory and no gpu.

This is good news for people that want to get on that platform and wait for 22nm down the road.
 
grkM3 said:
The 180watt makes sence for a 10 core 20 thread cpu and they might get that down to 130 on 22nm but no way a 6 core is pulling that many watts with no gpu
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It's a rumor, so it should be taken with a grain of salt, but of course we don't have ALL the info yet. Current parts out right now are 95W, midrange parts. These parts in the rumor are the high-end parts. If their clocks are considerably higher, and have 2 more cores, a 130W TDP is believable. What do you think is the TDP of a quad-core 2500K overclocked to beyond 4GHz and with the bit of extra voltage necessary?

As for the 180W peak... maybe, but I also don't believe that. It may also apply only to the highest-end part, the very top SKU, and the site decided to "sensationalize" it and left out that bit of info, who knows.
 
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