ASUS ZEPHYRUS GA 502 with AMD Ryzen CPU

Discussion in 'ASUS Gaming Notebook Forum' started by IKAS V, May 5, 2019.

  1. Richard Zheng

    Richard Zheng Notebook Evangelist

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    Hello fellow Canadian. On amazon it ships 22nd, so we are gonna miss out on some of the fun :(
     
  2. PJPeter

    PJPeter Notebook Deity

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    Yep - unfortunately. Though Cookiedemkp was kind enough to run the tests I requested (really grateful to him for doing so), I think unless I can figure some way to bypass the power throttling on battery, I'm going to have to give the GA502 a pass unfortunately :/

    It does show that the GA502 is giving much lower performance on battery than I had hoped. I don't know if there is some other setting to prevent it, but as it is I'm guessing it's stuttering a great deal because of lack of power.

    I also tested a Razer Blade RTX2070 in person at the MS Store and I found it was able to consistently give 56-60% of plugged in performance (without stuttering) even down to 14% battery while in 3DMark11 which was 60fps locked on battery (and therefore gave lower results).

    My Lenovo Y740 tests though showed massive stuttering and as the battery drained the performance would get significantly worse as the available battery voltage dropped (it only has a 11.52V 3 cell battery as opposed to the 15.4V 4 cell in the Razers and I assume in the GA502). So I'm wondering if there's something different that Razer is doing to allow consistent high performance on battery since I know too that with other laptops I've owned battery gaming is like watching a slideshow because of poor power management.

    I didn't include Turbo runs in my analysis of either system - just the normal plugged in results. And I didn't enable throttle stop/undervolt on the Blade Base since he didn't do any such tweaking on your GA502.

    Analysis of Performance/Power Results Comparing Plugged In/Battery from TimeSpy Runs:

    Razer Blade Base 2018:

    Max GPU Power Plugged In: 73W
    Max CPU Power Plugged In: 43W
    https://www.3dmark.com/spy/7157396
    SCORE
    3 717 with NVIDIA GeForce GTX 1060 Max-Q(1x) and Intel Core i7-8750H Processor
    Graphics Score 3 550
    CPU Score 5 080

    Max GPU Power on Battery (17%): 55.7W
    Max CPU Power on Battery (14.8%): 41.1W
    https://www.3dmark.com/spy/7156524
    SCORE
    3 306 with NVIDIA GeForce GTX 1060 Max-Q(1x) and Intel Core i7-8750H Processor
    Graphics Score 3 110
    CPU Score 5 143

    89% of Plugged in Score while using up to ~83% of max power (Slight Power Throttling)

    ASUS Zephyrus GA502 (2019):
    Max GPU Power Plugged In: 61.7W
    Max CPU Power Plugged In: 10.8W
    SCORE
    4 552 with NVIDIA GeForce GTX 1660 Ti(1x) and AMD Ryzen 7 3750H with Radeon Vega Mobile Gfx
    Graphics Score 4 932
    CPU Score 3 170

    Max GPU Power on Battery (27.6%): 31.9W
    Max CPU Power on Battery (26%): 10.6W
    SCORE
    1 785 with NVIDIA GeForce GTX 1660 Ti(1x) and AMD Ryzen 7 3750H with Radeon Vega Mobile Gfx
    Graphics Score 1 657
    CPU Score 3 179

    39% of Plugged in Score while using up to ~59% of max power (High Power Throttling)

    You can see from the results that CPU is not throttled on the GA502 - it always uses about the same amount low amount of power for the same score on battery or not. The GPU though is heavily throttled.

    The result is very unfortunate to me since I had such high hopes for this low power CPU and high performance GPU combination, but I'm very glad I found this out before driving all the way across the border to buy one...


    Peter
     
    Last edited: May 12, 2019
    mctsimo1 likes this.
  3. Richard Zheng

    Richard Zheng Notebook Evangelist

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    Why is this a bad thing? I don’t know why you would want full performance on battery since you will absolutely murder battery life. The throttling is good because you get a longer runtime for when you might need the power. Or even better, you stick to iGPU to get a good boost to GPU power vs intel CPUs while conserving even more battery life
     
  4. IKAS V

    IKAS V Notebook Prophet

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    It’s not a bad thing just bad for him and how he wants to use it.
     
  5. mctsimo1

    mctsimo1 Notebook Enthusiast

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    Thanks for the tests.
    Sorry for the basic questions - regarding the 10.8W CPU power, is someone able to please explain? Is this a good thing or a bad thing? I thought that ryzen CPU could go to 35W, or am I missing something here?
     
  6. PJPeter

    PJPeter Notebook Deity

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    Most of the time I set the computer to "Battery Battery" w/100% brightness - like right now. I worked on the train for about 30 minutes and I've been on my Razer Blade Base now for 10 since I got home and it shows 5 hours 48 minutes (86% remaining).

    So I'm really happy with the battery life while working on this mode - but sometimes I get to play a game like Civ 6 or Mass Effect Andromeda on the train and I really appreciate having 90% of my plugged in performance while doing so. I did a calculation this morning and it gives me 70 minutes runtime - which is more than the Y740 gave, while giving 2x the performance consistently from 100% battery down to 5%.

    I really appreciate having the option to game on battery - not being restricted to lower performance at all times.

    I had noticed with the Y740 (both RTX2060 and RTX2070 versions) that it worked great plugged in, and on battery it was fine exploring. But when I played the game on battery and got into a fire fight - it was unplayable. It stuttered so badly I had to give up. Thats why I'm so happy to have found the Blade.

    Yes the Ryzen CPU is supposed to go up to 35W - I didn't run a CPU Benchmark other than the one built into 3DMark. It only using that much power is great actually. It gives i5 level performance which is good, but it's a lot less than the performance of the i7 8750H in the Blade or the i7 9750H in other new laptops so it's a bit of a loss to me.

    You can try yourself if you get a GA502 - just install HWINFO64 and run a muticore benchmark and see.
     
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