Power Consumption

Intel isn't really exploiting 22nm for significantly higher default or max turbo frequencies. While it does seem like you'll hit turbo frequencies more often with Ivy, most of what 22nm offers will be realized as power savings.

The data in the charts below is from our original 3770K preview, however I've also provided a table comparing the 3770K to the 2700K using Intel's own Z77 motherboard which is a bit more power hungry than our typical testbed:

Power Consumption Comparison
Intel DZ77GA-70K Idle Load (x264 2nd pass)
Intel Core i7 3770K 80.1W 146.4W
Intel Core i7 2700K 79.4W 177.6W

As you can see, there are no savings at idle and a reasonably significant improvement under load.

The same is echoed on our earlier chip in a more power efficient platform:

Power Consumption—Idle

Power Consumption—Load (x264 HD 3.03 2nd Pass)

I was also curious to see what power consumption would look like compared to other low-end GPUs. For these next results I used the 3770K alone, without a discrete card and measured power consumption. I then added in discrete GPUs from our HD 4000 comparisons and looked at both idle and load power while playing Metro 2033:

GPU Power Consumption—Idle

Obviously at idle it's impossible to beat the HD 4000, the GPU is largely stopped/gated when idle keeping power consumption to a minimum. Under load is where things get interesting:

GPU Power Consumption—Load (Metro 2033)

Ivy's GPU is much more power efficient than SNB's, however Intel still has a way to go before it starts to equal the power efficiency of modern discrete GPU architectures. Remember the HD 4000 is on Intel's 22nm process here while the GT 440 is built on TSMC's 40nm process.

Intel HD 4000 Performance: Compute & Synthetics Quick Sync Image Quality & Performance
POST A COMMENT

173 Comments

View All Comments

  • wingless - Monday, April 23, 2012 - link

    I'll keep my 2600K

    .....just kidding
    Reply
  • formulav8 - Monday, April 23, 2012 - link

    I hope you give AMD even more praise when Trinity is released Anand. IMO you way overblew how great Intels igp stuff. Its their 4th gen that can't even beat AMDs first gen.

    Just my opinion :p
    Reply
  • Zstream - Monday, April 23, 2012 - link

    I agree.. Reply
  • dananski - Monday, April 23, 2012 - link

    As much as I like the idea of decent Skyrim framerates on every laptop, and even though I find the HD4000 graphics an interesting read, I couldn't care less about it in my desktop. Gamers will not put up with integrated graphics - even this good - unless they're on a tight budget, in which case they'll just get Llano anyway, or wait for Trinity. As for IVB, why can't we have a Pentium III sized option without IGP, or get 6 cores and no IGP? Reply
  • Kjella - Tuesday, April 24, 2012 - link

    Strategy, they're using their lead in CPUs to bundle it with a GPU whether you want it or not. When you take your gamer card out of your gamer machine it'll still have an Intel IGP for all your other uses (or for your family or the second-hand market or whatever), that's one sale they "stole" from AMD/nVidia's low end. Having a separate graphics card is becoming a niche market for gamers. That's better for Intel than lowering the expectation that a "premium" CPU costs $300, if you bring the price down it's always much harder to raise it again... Reply
  • Samus - Tuesday, April 24, 2012 - link

    As amazing this CPU is, and how much I'd love it (considering I play BF3 and need a GTX560+ anyway) I have to agree the GPU improvement is pretty disappointing...

    After all that work, Intel still can't even come close to AMD's integrated graphics. It's 75% of AMD's performance at best.
    Reply
  • Cogman - Thursday, May 03, 2012 - link

    There is actually a good reason for both AMD and Intel to keep a GPU on their CPUs no matter what. That reason is OpenCV. This move makes the assumption that OpenCV or programming languages like it will eventually become mainstream. With a GPU coupled to every CPU, it saves developers from writing two sets of code to deal with different platforms. Reply
  • froggr - Saturday, May 12, 2012 - link

    OpenCV is Open Computer Vision and runs either way. I think you're talking about OpenCL (Open Compute Language). and even that runs fine without a GPU. OpenCL can use all cores CPU + GPU and does not require separate code bases.

    OpenCL runs faster with a GPU because it's better parallellized.
    Reply
  • frozentundra123456 - Monday, April 23, 2012 - link

    Maybe we could actually see some hard numbers before heaping so much praise on Trinity??

    I will be convinced about the claims of 50% IGP improvements when I see them, and also they need to make a lot of improvements to Bulldozer, especially in power consumption, before it is a competitive CPU. I hope it turns out to be all the AMD fans are claiming, but we will see.
    Reply
  • SpyCrab - Tuesday, April 24, 2012 - link

    Sure, Llano gives good gaming performance. But it's pretty much at Athlon II X4 CPU performance. Reply

Log in

Don't have an account? Sign up now