Battery Life

Normally on a notebook review, I would consider battery life to be one of the key aspects of the experience. However the GT80 Titan is not a typical notebook. This is really a device designed to sit on a desk and be used in lieu of a desktop computer. But if you ever feel the need to pick up this 10 pound laptop and lug it to the coffee shop, I suppose we should see what kind of battery life you can expect.

The GT80 Titan lacks NVIDIA’s Optimus technology, so it can’t switch from the discrete graphics to integrated graphics on the fly. MSI has included a hardware switch to change to integrated graphics, but it does require a reboot in between. Just to see how much of a difference this makes, I ran the light test first with the GTX 980Ms active, and then again leveraging Intel’s integrated GPU.

Battery Life 2013 - Light

Our light test is light web browsing with the display set at 200 nits. The 80 Wh battery inside the GT80 Titan is really no match for the hunger of the SLI graphics cards, and with those enabled the battery life is a mere two hours and twenty minutes. However once you disable the GPUs and switch to the integrated GPU, the result is actually a pretty respectable four hours and nine minutes. Considering the size of the display and the power underneath the covers, I was actually shocked it was that high.

Battery Life 2013 - Heavy

The heavy test ramps up the amount of pages browsed, adds in a 1 MB/s file download, and a movie is played back using the Windows 8 Video app. On most devices, the light test result is often dictated by the display power, and the heavy test shifts that balance over to the CPU and I/O. However with the power hungry components in the GT80, the difference between the light and heavy tests results is less than normal with it getting just about an hour less overall. Even though it is just three hours fifteen minutes, it actually ties the Sony Vaio Haswell based Ultrabook in this test, but it does have over double the battery capacity of that much smaller notebook.

Battery Life 2013 - Light Normalized

Battery Life 2013 - Heavy Normalized

Looking at the normalized graphs, the GT80 shows just how much energy is needed to power the CPU and large display. Once you turn on the GPUs though, the power usage really gets ugly and the light result with the GPUs enabled is one of the worst we have seen. Even though NVIDIA has been improving power efficiency and idle draw of their GPUs, they still are not in the same league as the 14nm Intel GPU when discussing minimum power draw.

Charge Time

In order to provide enough power for the two GPUs plus the quad-core CPU, MSI ships the GT80 Titan with a massive 330 watt A/C adapter. This power brick alone weighs more than some notebooks, but it is necessary to keep up with the insane power requirements of this notebook. With that much power available, MSI could have chosen to reduce the charge time pretty substantially.

Battery Charge Time

Looking at the time though, the GT80 charges in roughly the same time as most notebooks. Even though they could have provided more power to the battery, this may have required beefed up circuitry, and even if that is there, it can be hard on the battery due to the heat generated. MSI was fairly conservative here but the end result is a fine 2.5 hours.

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  • Wolfpup - Friday, June 26, 2015 - link

    Sweet. No Floptimus = mandatory (try actually playing games for hours on end and you'll start hitting stability issues with Optimus).

    Mechanical keyboard = awesome.

    And easy to get in to...I'm not going to replace my main system yet, but this would be at the top of my list to check out.
  • bennyg - Sunday, June 28, 2015 - link

    Optimus bashing is sooo 4 years ago. As a GTX 680M owner for the past 2 years, my sole interaction with Optimus is having to create a few profiles (e.g. gzdoom). I have seen no such long session stability issues, I can even hibernate and resume with games open and continue. It's rock solid.
  • Tunnah - Friday, June 26, 2015 - link

    You could buy a high end rig, AND a 4K monitor for this sort of money. Putting that much GPU power for a 1080p screen seems...wasteful
  • masouth - Friday, June 26, 2015 - link

    "Putting that much GPU power for a 1080p screen..."

    You do realize that you are not limited to using only the built in screen on the majority of laptops, right?

    2 x Mini DisplayPort v1.2
    HDMI 1.4
  • sabrewings - Friday, June 26, 2015 - link

    But will it VR?
  • BMNify - Friday, June 26, 2015 - link

    why not? VR will work fine, the fact that this laptop has no optimus makes it an ideal laptop for Occulus Rift.
  • sabrewings - Friday, June 26, 2015 - link

    Just verifying, as I know a lot of laptops won't be able to. Then, it's entirely likely you could put that kind of GPU power to use.

    As a side note, I have a 980 Ti powering a 55" 1080p TV. Too much power? Maybe. I do see over 80% GPU utilization running DSR and the image quality is so so good. I did buy it primarily for VR, otherwise I would've stuck with a GTX 980 or 970. Hence, my question.
  • Gigaplex - Sunday, June 28, 2015 - link

    At which point you're better off with a SFF desktop.
  • Hrel - Friday, June 26, 2015 - link

    I would get rid of RAID and just use one single 256GB SSD.

    Then I'd get rid of SLI and just use one GTX965M GPU.

    Then I'd drop the screen size down to 15".

    Obviously power requirements would go down so you could use a smaller battery and PA. But if I could get everything else in this laptop, in my version of the laptop, for $1500 or less, I'd buy that.
  • just4U - Friday, June 26, 2015 - link

    I've been thinking along similar lines.. not only with this laptop but others as well. For me .. I like the roomie case/keyboard and larger screen which I am willing to pay a decent premium on but I'd be fine with a i5 CPU and a single 965..

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