• What
    is this?

    You've landed on the AMD Portal on AnandTech. This section is sponsored by AMD. It features a collection of all of our independent AMD content, as well as Tweets & News from AMD directly. AMD will also be running a couple of huge giveaways here so check back for those.

    PRESENTED BY

AMD Trinity: Battery Life Also Improved

With all of the changes going into Trinity, one thing that hasn’t changed since Llano is the process technology. Trinity is once again coming on a 32nm process from GlobalFoundries. If we were talking about Intel, Trinity would represent a “Tock” on the roadmap—a new architecture on an existing process. We’ve looked at CPU and GPU performance, and this is a part that’s pretty much universally faster than its predecessor. Given the lengthier pipeline and Bulldozer-derived architecture, I admit that I was concerned Trinity might actually be a step back for battery life; it appears that my fears were unfounded, largely due to the improvements in Piledriver. As usual, we tested with all laptops set to 100 nits brightness in our idle, Internet, and H.264 playback tests. I also ran some additional tests which we’ll discuss in a moment. First, here are the standard battery life results:

Battery Life—Idle

Battery Life—Internet

Battery Life—H.264 Playback

Battery Life Normalized—Idle

Battery Life Normalized—Internet

Battery Life Normalized—H.264

With a similar capacity battery to the original Llano laptop, and the same size 14” panel, Trinity comes out of the gates and posts two clear wins: idle battery life and Internet battery life are both up substantially relative to Llano. In fact, looking at the normalized charts, the only laptops that can consistently beat Trinity are found in Sandy Bridge ultrabooks—we won’t even bother discussing Atom or Brazos netbooks, as they’re competing in a completely different performance bracket. In something of a surprise, H.264 battery life doesn’t see the same benefit unfortunately, and it’s the one discipline where Llano still holds on to a slight lead over Trinity. Sandy Bridge meanwhile has always done very well in H.264 battery tests, and we see that with the Vostro V131 posting a normalized score that’s 30% better than Trinity and Llano. Of course, on the other end of the spectrum we have Ivy Bridge; we’ve only looked at one Ivy Bridge laptop so far, but if the pattern holds than Ivy Bridge will generally be a moderate step back in battery life relative to Sandy Bridge, giving AMD an even larger lead in this area.

We also performed a few other tests that we won’t present in graph form. One set of tests we alluded to earlier: the charts show Trinity with a Samsung 830 SSD, but we also ran tests with an Intel 520 SSD. Idle battery life dropped to 476 minutes (an 8% decrease), Internet battery life checked in at 371 minutes (down 8% again), and H.264 battery life stayed nearly the same at 217 minutes (down less than 3%). If battery life is one of your primary concerns, remember: all SSDs are not created equal!

Another test that we ran is simulated gaming; we looped the four graphics tests in 3DMark06 at 1366x768 until the battery ran out. We’ve run this same test on quite a few other laptops, and Llano initially looked to be far and away the best solution. Later, we discovered that when we tested Llano we were letting the GPU run in power saving mode—basically half the performance you’d get compared to being plugged in. We retested and measured 98 minutes, so the extra graphics performance comes with a heavy cost. We only tested Trinity (and Ivy Bridge and Sandy Bridge) using higher performance graphics settings, and this is one more area where it scores worse than Llano: Trinity managed just 77 minutes. That’s about the same as Ivy Bridge and Sandy Bridge (79 and 73 minutes, respectively), so if you’re after better gaming performance while running off the mains, you might need to keep looking.

Before getting too carried away with the above results, you still need to consider how important battery life is for your usage model. Some people travel a lot and like to go all day without plugging in; others will go from place to place and plug in whenever they’re not on the go. If you fall in the latter category, battery life isn’t usually a problem with any decent laptop, while those looking for all-day computing will definitely want as much mobility as possible. Ultimately, battery life is a factor of battery capacity as well as power optimizations done by the OEMs. We’ve seen battery life improve by as much as 50% when comparing two otherwise similar notebooks, but at least AMD’s reference platform for Trinity delivers a great starting point.

Temperatures and Acoustics

One other item we wanted to quickly touch on is system temperatures. We typically use HWMonitor and check temperatures of laptops under idle and load conditions. We did this with Trinity as well, but unfortunately the current version of HWMonitor doesn’t give us a lot of information. The only temperatures it reports are from the SSD and the HD 7660G graphics—there’s nothing about CPU core temperatures. That means we can’t provide much detail, other than to say that load temperature on the GPU topped out at 71C during extended testing, while the idle temperature was 39C. As usual, temperatures and noise levels go hand in hand, and the low 71C maximum GPU temperature matches up nicely with noise levels that never got above 37dB. It’s not the quietest laptop we’ve ever tested, and surface temperatures can get a little warm, but overall Trinity looks to be a good balance of performance and power requirements, which means quiet laptops are definitely possible.

AMD’s Heterogeneous Computing with Trinity Conclusion: What Makes a Trinity?
POST A COMMENT

271 Comments

View All Comments

  • AlB80 - Tuesday, May 15, 2012 - link

    No.
    It's official information.
    Reply
  • JarredWalton - Tuesday, May 15, 2012 - link

    Except according to CLInfo, it does. Nice try? Reply
  • AlB80 - Tuesday, May 15, 2012 - link

    Oops. It was.
    Now it has fp64 = 1/16 fp32.
    Reply
  • princehamlet - Tuesday, May 15, 2012 - link

    I was constantly refreshing the page at 12 AM! Couldn't wait for the reviews to be posted after the embargo was lifted :D. Reply
  • BSMonitor - Tuesday, May 15, 2012 - link

    Why? Nothing earthshattering here. AMD is scalping resources from the CPU to add TDP room and die space for more of it's bulky Radeon shaders.

    It's like buying a laptop from 2004, with a DX11 upgrade.

    AMD has the "good enough" part backwards. People want their laptop to be responsive when doing work, watching movies and browsing, etc. CPU intensive tasks. The good enough part, in regards to laptops would be the gaming. No one expects 60fps at 1080 out of laptop sitting on a plane flying somewhere.

    Way to capture the hearts of the 1% of the 1% of people looking for great gaming from their $500 laptop.
    Reply
  • Articuno - Tuesday, May 15, 2012 - link

    Considering the CPU part is better than mobile Core 2 Duo parts (and thousands upon thousands of people are still using laptops with C2Ds) and the GPU part is several orders of magnitude better than Intel's best, I'd say buying an Intel laptop is like buying a laptop from 2004: expensive and extremely low price/performance for what you get. Reply
  • JarredWalton - Tuesday, May 15, 2012 - link

    Whoa... several orders of magnitude? So, like, 1000X better? Because if anyone can offer up a GPU that's 1000 times faster than even GMA 4500, I'd take it! Turning down the hyperbole dial: AMD still has better drivers than Intel, but it's more like 20% better (just to grab a nice number out of thin air). Trinity's GPU is about 20% faster than HD 4000 as well, so that makes Trinity's GPU a whopping 44% better than "Intel's best".

    Now if you want to talk about the best Core 2 era IGP, then we'd be looking at more like an order of magnitude improvement. GMA 4500MHD scores around 1000 in 3DMark06, in case you were wondering (http://www.anandtech.com/show/2818/6). I know, it's only 3DMark -- still, call it 500 as a penalty for lousy drivers and HD 7660G is still "only" about 20X better.

    /meaningless debate
    Reply
  • Articuno - Tuesday, May 15, 2012 - link

    Fair enough, kind of a knee-jerk reaction out of me there. Though I'm guessing the APU will be cheaper than the i7s it's going up against even without a discrete card added on top of them, so it's got very nice price/performance potential. Reply
  • jensend - Tuesday, May 15, 2012 - link

    Yes, his "orders of magnitude" was hyperbole- but Intel's benchmark scores esp 3dmark really haven't reflected how awful their GPUs have been. The performance difference in real games was usually much bigger than that in synthetic benchmarks. You already mentioned driver issues. Even if you could get halfway decent performance out of some games, image quality was often a huge problem. If AMD or nV had offered that crappy of image quality they would have been totally excoriated in the press for cheating in order to inflate benchmarks; people didn't do that to Intel- probably because it would have felt like beating a handicapped child.

    But Sandy had some real improvements and then Ivy Bridge really turned things around for Intel. Beyond the performance improvements, after years of making excuses for their AF and saying that AA was unnecessary, they finally stopped making excuses and fixed them. Trinity is faster, but anybody who says that Ivy Bridge's graphics don't offer Trinity's any competition is badly mistaken.
    Reply
  • Spunjji - Tuesday, May 15, 2012 - link

    Indeed - I was honestly pleasantly surprised to see HD4000 sitting so high in the charts. Finally I won't need to start warning people against Intel notebooks!

    ...except for the small problem of HD2500. Still, improvement is improvement.
    Reply

Log in

Don't have an account? Sign up now