Sign in with
Sign up | Sign in

Efficiency

AMD's Trinity APU Efficiency: Undervolted And Overclocked
By

Averaging together system power use from the previous page, the overclocked A10-5800K uses more than 155 W, which is 33 W higher than an A10-5800K at its stock settings.

Undervolting the APU to 1.275 V helps cut consumption by 14.3 W on average, though there is a cumulative performance hit of about two minutes (hardly anything when you’re talking about an almost two-hour run).

But none of the APUs finish the suite as quickly or average the same low power consumption of Intel’s Core i3-3225, which averages 80 W.

When you break down the time it takes to complete the many benchmarks in our suite, the difference between the fastest and slowest chip is less than six minutes.

This chart is an unlikely representation of something AMD keeps trying to pound into our heads: the nebulous idea of experience. Will you notice six minutes over the course of 20 back-to-back demanding tasks? Almost certainly, no. That’s the idea of “good enough” x86 performance. Will you notice the difference in gaming performance illustrated last week, though? When it means the difference between playable frame rates at 1920x1080 or choppiness, then yes.

That doesn’t make the next chart any easier to swallow, though.

In watt-hours, an overclocked A10-5800K uses almost twice as much power as a Core i3-3225 to complete the same workloads. Enthusiasts in AMD’s camp are going to look at those numbers and claim they don’t care about a marginally-higher power bill (the light bulbs on either side of your garage, together, probably use as much power), so long as they get usable 3D performance, while the cool-and-quiet crowd will remind us that a 100 W APU requires more cooling. That could mean a faster-spinning fan or a larger heat sink. Either way, that piece of logic that shifts balance from x86 performance to graphics alacrity is going to cost you.

Display all 140 comments.
This thread is closed for comments
Top Comments
  • 41 Hide
    esrever , October 2, 2012 6:50 AM
    Most PC are idle or semi idle when people have them on. 90% of the time I use my PC, I do web surfing or watch video or a text editor for work, my pc is not loaded with benchmarks 24/7. If you look at idle power consumption, the trinity APUs are amazing. They easily beat out intels offerings. If you are looking at the power consumption over a month, the trinity will be much more energy efficient than the i3 for most people.
  • 37 Hide
    mayankleoboy1 , October 2, 2012 7:02 AM
    Quote:
    In the end, then, both Intel and AMD are offering you an experience. Which one do you pick?


    At this price point, i would choose AMD Trinity.
  • 29 Hide
    cangelini , October 2, 2012 7:03 AM
    esreverMost PC are idle or semi idle when people have them on. 90% of the time I use my PC, I do web surfing or watch video or a text editor for work, my pc is not loaded with benchmarks 24/7. If you look at idle power consumption, the trinity APUs are amazing. They easily beat out intels offerings. If you are looking at the power consumption over a month, the trinity will be much more energy efficient than the i3 for most people.

    Happy to set a couple of systems up and let you know what I find.
Other Comments
  • 41 Hide
    esrever , October 2, 2012 6:50 AM
    Most PC are idle or semi idle when people have them on. 90% of the time I use my PC, I do web surfing or watch video or a text editor for work, my pc is not loaded with benchmarks 24/7. If you look at idle power consumption, the trinity APUs are amazing. They easily beat out intels offerings. If you are looking at the power consumption over a month, the trinity will be much more energy efficient than the i3 for most people.
  • 11 Hide
    tacoslave , October 2, 2012 6:58 AM
    man getting this in a 17inch laptop with a 12 cell battery would make it an instabuy
  • 37 Hide
    mayankleoboy1 , October 2, 2012 7:02 AM
    Quote:
    In the end, then, both Intel and AMD are offering you an experience. Which one do you pick?


    At this price point, i would choose AMD Trinity.
  • 10 Hide
    DjEaZy , October 2, 2012 7:03 AM
    ... i like the WinZip with OpenCL acceleration benchmark... it shows...
  • 29 Hide
    cangelini , October 2, 2012 7:03 AM
    esreverMost PC are idle or semi idle when people have them on. 90% of the time I use my PC, I do web surfing or watch video or a text editor for work, my pc is not loaded with benchmarks 24/7. If you look at idle power consumption, the trinity APUs are amazing. They easily beat out intels offerings. If you are looking at the power consumption over a month, the trinity will be much more energy efficient than the i3 for most people.

    Happy to set a couple of systems up and let you know what I find.
  • 18 Hide
    mayankleoboy1 , October 2, 2012 7:05 AM
    AMD should team up with developer of 7zip to accelerate it on APU's. That will make Trinity look better. A lot of people use 7zip. And most of the installation setup exe files are compressed using LZMA algorithm.
  • 19 Hide
    mayankleoboy1 , October 2, 2012 7:11 AM
    Chris, it would be great to see some benchmarks of applications that uses the new FMA3 instructions of the Piledriver.
  • 16 Hide
    cangelini , October 2, 2012 7:27 AM
    esreverMost PC are idle or semi idle when people have them on. 90% of the time I use my PC, I do web surfing or watch video or a text editor for work, my pc is not loaded with benchmarks 24/7. If you look at idle power consumption, the trinity APUs are amazing. They easily beat out intels offerings. If you are looking at the power consumption over a month, the trinity will be much more energy efficient than the i3 for most people.

    So, it's probable that we're seeing a difference in configuration. It looks like Anand is using the Gigabyte A85X board and perhaps an older driver version. I'm on the MSI board and Cat 12.8, with a different Intel setup as well. On the Windows desktop, after 10 minutes on each config, I get 59 W for Intel and 67 W for AMD at idle.
  • 14 Hide
    techcurious , October 2, 2012 7:35 AM
    Chris, for the sake of completeness, any chance you could undervolt the i3-3225 at stock speeds and run the power consumption/efficiency tests on it? ;)  ...to reveal how low the i3 can be pushed with some tweaking as well, and create the opportunity for a more fair comparison with the undervolted Trinity results.
  • 7 Hide
    sarinaide , October 2, 2012 7:46 AM
    Thanks Chris, another great article to pass time over. You really need to comment on the forums more and more so to help out against the blatent belligerence against what AMD are trying to achieve and how they are looking to achieve it.

    Hopefully this articale can start to filter around particularly for the budget users which A-series is premised to target.
  • 5 Hide
    Anonymous , October 2, 2012 7:57 AM
    So now that we got that out of the way...............where is the hybrid xfire chart so we know what's the max discrete card that will be supported? And while you're at it, when you find that out can you check to see if there are any significant gains when setting up a discrete + discrete + 7660 triple hybrid xfire set up, or even a quad hybrid xfire set up (3 discrete cards + 7660) of if either of those are even possible? After seeing that write up on how the dual 7750's performed, I'd love to see what trinity's version of hybrid xfire can pull off.
  • 14 Hide
    m32 , October 2, 2012 7:57 AM
    I could get rid of my family computer with a dedicated gpu and just slap an A10k in there. Most of the time it is just used for web browsing and such, so it would be an killer for my family and friends that don't need an lot.
  • 26 Hide
    bulldozer83 , October 2, 2012 8:17 AM
    The_TrutherizerNice article, but I must say that much as I enjoy the over clocking stats from AMD; To be fair to Intel their part should also be over-clocked to make this a sporting comparison. I believe the two would be more or less equal, except for AMD's APU being considerably more capable at handling gfx tasks. And yes... As some people have stated we really need benchmarks where a discrete gfx card is used in conjunction with the APUs and HD CPUs as I believe this is what most people will do currently.


    overclock the locked Intel chips? how do you suppose they do that? they weren't testing against Intel K series unlocked chips.
  • 0 Hide
    Nintendo Maniac 64 , October 2, 2012 8:19 AM
    Wouldn't it be more fair to compare the i3 power consumption to the 65w Trinity APUs (such as the A10-5700) rather than the 100w ones?
  • 26 Hide
    americanbrian , October 2, 2012 8:34 AM
    Umm, WHY DIDN'T YOU SHOW THE GAME BENCHMARKS WITH THE OVERCLOCKED GPU SETTINGS!!!

    I can't be the only one who was waiting for the money shot of what is the difference in performance when you clock up from 800Mhz to >1000Mhz.

    SUCH AN OVERSIGHT. UNFORGIVABLE!
  • 2 Hide
    americanbrian , October 2, 2012 8:36 AM
    I mean really, why not show people what they want to know? I WANT TO KNOW.
  • 10 Hide
    theconsolegamer , October 2, 2012 8:45 AM
    Where's the gaming benches of the retail APU?
  • -3 Hide
    chesteracorgi , October 2, 2012 9:30 AM
    Given the results of head to head comparison in gaming, I'm interested in seeing them compete in transcoding, and comparisons when paired with discrete GPUs. Presently AMD Trinity seems to be the runaway winner for laptops, but a poor option for desktops.
  • 12 Hide
    abitoms , October 2, 2012 9:36 AM
    Chris, and team, a few things I - and probably others- would like to see here;

    1. overclocked/undervolted benchmarks for the i3 parts
    2. dedicated gpu game benchmarks at 1440, 1680, 1920 for the A10 and the A8
    3. More OpenCl benchmarks with and without dedicated GPUs for the i3 parts as well as the A10 parts

    p.s. I realised I was getting thumbed up and down for this. do these seem like too many requests? nobody has covered trinity like toms and that too with superb writing quality. is it wrong for me to get greedy to read more of their stuff? :-) i'm addicted to this stuff is all. now if you'd excuse me, I have an F5 button to press.
Display more comments