System Performance

Intel’s Broadwell rollout has been fairly drawn out, with the first chip made on the 14nm process being Core M way back in October 2014. At CES, Intel launched the Broadwell-U processors which were 15-28 watt TDPs, but all dual-core. With Intel trying to make a bigger push into mobile, even the Atom processor got moved to 14nm before the quad-core Core parts, but finally as of June 2nd, Intel launched some quad-core laptop parts and a couple of desktop parts.

MSI sent along the latest update to the GT80 Titan which is powered by the Intel Core i7-5700HQ processor. As with any CPU update, Intel has made a few tweaks to the architecture which will gain a few percentage points in IPC, however this is in essence a die shrink on Haswell, so we have to keep expectations in check. What we have seen on the Broadwell-U line is better battery life, and a nice boost in performance by the processor being able to maintain higher turbo frequencies while keeping within its thermal envelope.

With a TDP of 47 watts, the i7-5700HQ, it will be interesting to compare how the Broadwell quad-core parts compare to Haswell. The i7-5700HQ has a base frequency of 2.7 GHz and a turbo of 3.5 GHz. There is not a perfectly comparable Haswell part that we have tested however the i7-4720HQ has been in several devices this year and has a slightly lower base of 2.6 GHz and a slightly higher turbo of 3.6 GHz which should make an interesting comparison.

I have put the GT80 Titan through our standard laptop workload, and picked some comparative devices. Take note that the Clevo P750ZM actually has an 88 watt desktop CPU inside. The MSI GT72 Dominator Pro has a 47 watt TDP and the same 3.5 GHz turbo frequency so it should be a great comparison for Haswell versus Broadwell. If you want to compare the GT80 Titan to any other laptop we have tested, please use our Notebook Bench.

PCMark

PCMark 8 - Home

PCMark 8 - Work

PCMark 8 - Storage

PCMark 7 (2013)

PCMark tries to simulate some real life workloads, with several different subtests for different sets of tests. It is not a pure CPU test, and also factors in memory, storage, and even display resolution. The GT80 does not outright win these tests however it is competitive. The two SSDs in RAID 0 help boost it to one of the higher storage scores, and for the target market the extra cost and loss of battery life of RAID 0 is fine. One thing to note is that the Creative test on PCMark 8 would fail to run on this device, so there was no score recorded for that test.

Cinebench

Cinebench R15 - Single-Threaded Benchmark

Cinebench R15 - Multi-Threaded Benchmark

Cinebench R11.5 - Single-Threaded Benchmark

Cinebench R11.5 - Multi-Threaded Benchmark

Cinebench is more of a pure CPU test, and it favors high frequencies and IPC. Here we get a better feel for Broadwell and the i7-5700HQ performs very well. It outperforms all of the other 47 watt processors we have tested despite not having the highest turbo frequency.

x264

x264 HD 5.x

x264 HD 5.x

Once again, the i7-5700HQ outperforms all other 47 watt parts although it can’t compete with the 88 watt P750ZM. The move to 14nm clearly opens up some additional headroom to keep the turbo frequencies up.

Web Tests

Mozilla Kraken 1.1

WebXPRT

Google Octane 2.0

Our web tests continue the trend that has already been set. Once again the GT80 Titan sets the standard, and is only trumped by a notebook with a desktop processor.

Broadwell may just be a die shrink of Haswell, but the 14nm process is very effective. Despite having a maximum frequency of just 3.5 GHz, the i7-5700HQ outperforms Haswell parts that can turbo up a few hundred megahertz more, which is pretty impressive.

Design GPU Performance
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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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