Download the Tom's Hardware App from the App Store
The reference for current tech news
Yes No
Signin with

Benchmark Results: Efficiency Testing

by

The performance score we need in order to calculate efficiency comes from the total run time to complete our efficiency workload.

Here's the meat. Our analysis of effective application performance per watt results in a serious advantage for the new six-core processor. The Core i7-980X gets things done faster and requires less power, resulting in much improved efficiency.

This efficiency diagram shows power consumption at every point of the benchmark run and the time required to complete the workload. Clearly, the new processor requires considerably less power (red line) than the Core i7-975 quad-core. You can see that there are threaded workloads (high spikes and plateaus) and applications that are less optimized (lower power levels).

Share:
46
Comments
X
Submit

Comments
cruiseoveride 03/12/2010 5:24 AM
Hide
-6+

We had single core, then dual core, then quad core, feels like 8 cores should be the next big thing.

duk3 03/12/2010 5:27 AM
Hide
-7+

^6 cores is just another step in that direction of octocores.

micky_lund 03/12/2010 5:33 AM
Hide
-0+

wow...doesn't even use up the local power grid back home....
what r u doing wrong intel? :P
good to see it can overclock nicely tho

bobfrys 03/12/2010 5:35 AM
Hide
-20+

Now that you have that i7 Hexacore, why aren't you doing multi-tasking benchmarks. Like running a game and a anti virus, or a game and a browser, or a game, a browser, while doing a anti-virus scan. Or the highly impractical and improbable test of 2 games at once. Seeing as its a hexicore, it should really "shine" during multi-tasking, so why not show us how good it is at that.

shubham1401 03/12/2010 6:22 AM
Hide
-4+

+1 to bobfrys

Would really like to see how good this chip can multi-task.

archange 03/12/2010 6:31 AM
Hide
-3+

I was really expecting AMD to hit 1st with a hexa, given their good server record. That said, this is more of a paper launch than anything else right now. Performance-wise, the chip sits right where I expected it to sit, so no surprises here.

Right now, there's no incentive for me to swap my i7 920 running at 4 GHz. Sure, as Chris said, i would have loved something along the lines of the afore-mentioned 920, built at the 32 nm node.

Come octocores - I may consider the upgrade. Until then, my fingers are crossed in the direction of AMD - we really need them to keep up, for the sake of a healthy competition.

Sihastru 03/12/2010 6:38 AM
Hide
-18+

game + antivirus = choppy performance, antivirus accesses HDD most of the time, causing hangups

game + browser = highly improbable scenario, when you are gaming the browser will just be in idle, when you're browsing, even if the game suffers, you don't care, your focus is elswhere

game + game = whaaaaaaaaat?

The idea is, there are more components in a system, and the CPU is no longer the most important one if you need performance, you really need to speed up I/O (starting with the HDD/SDD). Complex things use the entire system, not just the CPU.

frozenlead 03/12/2010 6:47 AM
Hide
-0+

Adding additional programs at once into the equation would probably do more harm than good for the data. In addition to what sihastru said, you could also run into potential program conflicts - even though they may be running in what appears to be the same way every time to you, the user, they probably aren't on the computing side. For one program, the difference is negligible, but that would grow for every program you run. Also, say the programs run at different speeds on different CPUs, where they both need some critical system resource at the same time - then the more powerful CPU would mistakenly look worse, simply because it was faster in the first place.

It is nice to see that several programs can take advantage of 6 cores, even if it's weak. Hardware these days is phenomenal...but humans can still be pretty lazy writing software.

manitoublack 03/12/2010 7:47 AM
Hide
-0+

I'll be waiting for octocores as my 920 is still more than fast enough for me. Keep up the good work engineers at intel.

Tomtompiper 03/12/2010 8:23 AM
Hide
-2+

In the majority of these tests there is little or no difference in speed, and the time it would take for the extra efficiency to pay for the price difference, would exceed the lifetime of the chip by many years. Keep the extra cash and buy a SSD this will provide a much higher performance gain and efficiency savings.

sohei 03/12/2010 8:40 AM
Hide
--2+

i7 975 vs i7 980?? what is to demonstrate??
i think dual socket 17 920 platform vs i7 980 is more appropriate review

because dual socket i7 920 is more powerful and cheap ...and yes regarding power consumption ...the dual socket i7 920 is more efficient...why? because 2 i7 920 must work in full load 4 years to consume enough power(money) to pass the initial cost of i7 980

cj_online 03/12/2010 8:47 AM
Hide
--3+

cruiseoveride :
We had single core, then dual core, then quad core, feels like 8 cores should be the next big thing.


You forgot about triple cores.. 6 core makes sense... next is 8 cores.. then 12 and then 16...

Tomtompiper 03/12/2010 8:52 AM
Hide
-0+

archange :
I was really expecting AMD to hit 1st with a hexa, given their good server record. That said, this is more of a paper launch than anything else right now. Performance-wise, the chip sits right where I expected it to sit, so no surprises here.Right now, there's no incentive for me to swap my i7 920 running at 4 GHz. Sure, as Chris said, i would have loved something along the lines of the afore-mentioned 920, built at the 32 nm node.Come octocores - I may consider the upgrade. Until then, my fingers are crossed in the direction of AMD - we really need them to keep up, for the sake of a healthy competition.



Did you miss the post on the 12 core AMD? They are running a competition to win a 48 core system.

http://www.tomshardware.com/news/a [...] res&xtcr=1

urlsen 03/12/2010 9:17 AM
Show
obarthelemy 03/12/2010 9:49 AM
Hide
-0+

@bobfrys: I can understand game + AV... but game + browsing ? I know plenty of cores makes for a nice epeen, but do we really have to contrive tests so much to pretend and find them any actual use ?

d70guy 03/12/2010 11:16 AM
Hide
-0+

@bobfrys -- I agree

There are many activities which can happen on a daily basis which would benefit from having multiple cores. An example might be number crunching + productivity, I for one do not walk away from my machine while it is encoding, batch processing photos, transcoding, or rendering. It is important that the system remain usable while it is doing heavy crunching in the background. I would even argue that gaming while doing something else is important. For instance measuring broadband performance while gaming, defraging (a different disk) or whatever. The point is that with additional cores, all of these combined activities should become less visible to the operator. Since I switched my personal systems so SSDs I know it has had a huge impact on anything disk related and I can viably have disk activity running int he background while gaming (without impact). This will become even more important as we move forward as there will be a limit to the natural parallelism of some applications and the goal is to multitask. It would be nice to see a multitasking benchmark.

@archange: A paper launch is when someone launches something but does not deliver immediately. I have two gulftowns and four Xeon 5680s sitting in front of me. I have 100 unit quantities of the Xeons on order for the systems we build and expect delivery this month. Hardly a paper launch. The problem with the current set of benchmarks is that very few of the applications used scale well, I am in fact surprised at how poorly Mainconcept scales given the problem it is tackling. For our own use we see 50% scaling with the additional cores so the fact that we get more power efficiency, lower heat, and more tangible performance at the SAME price as the CPU it is replacing is a huge, tangible benefit.

I know that this article was about the extreme edition but I am even more excited about the westmere low power parts which have even lower power consumption and greater turbo capabilities.

Another article I would like to see is the impact of thermal management with respect to the new turbo capabilities of the chips.


d70guy 03/12/2010 11:17 AM
Show
requiemsallure 03/12/2010 11:18 AM
Hide
-1+

to be completely honest people that buy this processor, or the 975 more than likely are not going to care about power efficiency, or consumption.

though i have to say, it is interesting to know.

jlyu 03/12/2010 11:44 AM
Hide
-0+

@tomtompiper

if you're talking about why buying a 980x over a 975, it has more cores and its priced at the same $999 probably?

Best offers

Newsletters


OK