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  1. #21
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    Quote Originally Posted by TX2000 View Post
    here are some screenshots with v sync on and 100Hz
    Attachment 23833
    Attachment 23834
    Attachment 23835
    TX, you should try disabling v-sync when you have it on 100 Hz and take screen shots, since v-sync is capping frame rate at 60 FPS, so you might as well be @60 Hz. Unless you're getting more than 100 FPS in the game, then even @100 Hz tearing will occur.

  2. #22
    ROG Guru: Platinum Belt Array hmscott PC Specs
    hmscott PC Specs
    Laptop (Model)Asus G750JH-DB71 (legacy)
    MotherboardAsus G750JH Intel HM87
    ProcessorIntel i7-4700HQ XTU Cores 36x/35x/34x/34x Cache 36x -50mV undervolt
    Memory (part number)Hyundai Electronics HMT41GS6AFR8A-PB 1.35v DDR3L-1600MHz
    Graphics Card #1Nvidia 780m Asus GPU Tweak OC 932mhz/6300mhz
    Sound CardRealtek v6.0.1.7469 driver
    MonitorAUO B173HW02 V1 Custom Refresh 85hz
    Storage #1RAID0 2x M.2 SATA Crucial MX200 512GB CT500MX200SSD6
    Storage #2Crucial 512GB 2.5" MX200 CT500MX200SSD1
    Power Supply230w AC Power Adapter 19.5v
    Keyboard Logitech k400 Wireless KB/Trackpad
    Headset Sony MDR-XB500 Wired and Sennheiser RS-220 Wireless TOSLINK
    OS Windows 8.1 + 8 Linux VM's + Windows 10 Technical Preview
    Network RouterAsus RT-AC68U DLINK DIR-655

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    Hey roryh86, good point about the lcd response, we could start pushing into that limit. I don't see blurring yet.

    vsync at 100hz means the same as vsync at 60hz, just at a higher refresh/fps rate.

    Quote Originally Posted by roryh86 View Post
    Hey hmscott. The refresh rate has nothing to do with performance differences. Your GPU will output as much FPS as it can according to the set screen resolution and the graphic demand of the game/benchmark regardless of what display is connected (internal or external). It won't change its output power and struggle more (so to speak) to keep up with the display, its the opposite, the screen will now be able to catch more frames and display them without tearing (If you're gaming at +60 FPS). If you can enable 100 Hz, then theoretically you should be able to play games up to 100 FPS without tearing, and no need for v-sync.

    Also keep in mind that there is pixel response time to pay attention to. At 100 Hz, that is one screen refresh for every 10ms (1000/100). That means your pixel response time has to be less than 10ms to avoid blurring. I dunno what the response time is on the G750, but you wouldn't want to increase refresh rate if its say, a 16ms screen.
    Last edited by hmscott; 07-23-2013 at 01:23 PM.

  3. #23
    ROG Guru: Platinum Belt Array hmscott PC Specs
    hmscott PC Specs
    Laptop (Model)Asus G750JH-DB71 (legacy)
    MotherboardAsus G750JH Intel HM87
    ProcessorIntel i7-4700HQ XTU Cores 36x/35x/34x/34x Cache 36x -50mV undervolt
    Memory (part number)Hyundai Electronics HMT41GS6AFR8A-PB 1.35v DDR3L-1600MHz
    Graphics Card #1Nvidia 780m Asus GPU Tweak OC 932mhz/6300mhz
    Sound CardRealtek v6.0.1.7469 driver
    MonitorAUO B173HW02 V1 Custom Refresh 85hz
    Storage #1RAID0 2x M.2 SATA Crucial MX200 512GB CT500MX200SSD6
    Storage #2Crucial 512GB 2.5" MX200 CT500MX200SSD1
    Power Supply230w AC Power Adapter 19.5v
    Keyboard Logitech k400 Wireless KB/Trackpad
    Headset Sony MDR-XB500 Wired and Sennheiser RS-220 Wireless TOSLINK
    OS Windows 8.1 + 8 Linux VM's + Windows 10 Technical Preview
    Network RouterAsus RT-AC68U DLINK DIR-655

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    After exchanging a few emails with Asus, they came back with these answers to my questions, edited, questions follow.

    Answers:

    Thank you for contacting ASUS Customer Service.
    My name is XXXX and it is my pleasure to help you with your problem.

    For the first question, it is OK to set the rate at 60-100hz.

    For the second one, it won't be negative for your laptop. Actually, you can choose any rate among 60-100hz.

    For the third one, the refresh rate of 85 means the image is refreshed 85 times in a second.

    Questions:

    1) I would still like to know if it is ok to set the refresh rate at 85hz, 90hz, or 100hz, as
    the image display and the motion in graphics programs improves.

    2) Is there anything negative about doing it? Will it generate too much heat in
    components, etc. I realize the default setting is 60hz, but since it is possible to set
    higher, and it looks better, I would like to set it higher than 60hz. I also realize this
    isn't a 120hz supporting panel, but it works up to 100hz.

    3) Will the LCD panel electronics update the LCD faster than 60hz. If I set it to 85hz
    is it updating 15 times more per second than at 60hz?

    If you can forward this on to an engineer familiar with the design / operation I will be
    happy to wait for the answer. If you are that person, please let me know.

  4. #24
    ROG Guru: White Belt Array
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    Quote Originally Posted by roryh86 View Post
    TX, you should try disabling v-sync when you have it on 100 Hz and take screen shots, since v-sync is capping frame rate at 60 FPS, so you might as well be @60 Hz. Unless you're getting more than 100 FPS in the game, then even @100 Hz tearing will occur.
    when i disable vsyng and i am running at 100Hz it will jump to like 150 something fps. that game let you select 60 and 100Hz vsync

  5. #25
    ROG Guru: Platinum Belt Array hmscott PC Specs
    hmscott PC Specs
    Laptop (Model)Asus G750JH-DB71 (legacy)
    MotherboardAsus G750JH Intel HM87
    ProcessorIntel i7-4700HQ XTU Cores 36x/35x/34x/34x Cache 36x -50mV undervolt
    Memory (part number)Hyundai Electronics HMT41GS6AFR8A-PB 1.35v DDR3L-1600MHz
    Graphics Card #1Nvidia 780m Asus GPU Tweak OC 932mhz/6300mhz
    Sound CardRealtek v6.0.1.7469 driver
    MonitorAUO B173HW02 V1 Custom Refresh 85hz
    Storage #1RAID0 2x M.2 SATA Crucial MX200 512GB CT500MX200SSD6
    Storage #2Crucial 512GB 2.5" MX200 CT500MX200SSD1
    Power Supply230w AC Power Adapter 19.5v
    Keyboard Logitech k400 Wireless KB/Trackpad
    Headset Sony MDR-XB500 Wired and Sennheiser RS-220 Wireless TOSLINK
    OS Windows 8.1 + 8 Linux VM's + Windows 10 Technical Preview
    Network RouterAsus RT-AC68U DLINK DIR-655

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    TX2000, can you please try changing to 85hz and see if the game tracks the change, offering 85hz/60hz instead? It is odd that 100hz is there if not due to your current refresh rate.

  6. #26
    ROG Guru: White Belt Array
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    Quote Originally Posted by hmscott View Post
    TX2000, can you please try changing to 85hz and see if the game tracks the change, offering 85hz/60hz instead? It is odd that 100hz is there if not due to your current refresh rate.

    i will try to do that later i am not at home right now

  7. #27
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    here are some pictures at 85Hz. i changed the refresh to 85 and now the 100HZ option dissapeared
    Click image for larger version. 

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  8. #28
    ROG Guru: Platinum Belt Array hmscott PC Specs
    hmscott PC Specs
    Laptop (Model)Asus G750JH-DB71 (legacy)
    MotherboardAsus G750JH Intel HM87
    ProcessorIntel i7-4700HQ XTU Cores 36x/35x/34x/34x Cache 36x -50mV undervolt
    Memory (part number)Hyundai Electronics HMT41GS6AFR8A-PB 1.35v DDR3L-1600MHz
    Graphics Card #1Nvidia 780m Asus GPU Tweak OC 932mhz/6300mhz
    Sound CardRealtek v6.0.1.7469 driver
    MonitorAUO B173HW02 V1 Custom Refresh 85hz
    Storage #1RAID0 2x M.2 SATA Crucial MX200 512GB CT500MX200SSD6
    Storage #2Crucial 512GB 2.5" MX200 CT500MX200SSD1
    Power Supply230w AC Power Adapter 19.5v
    Keyboard Logitech k400 Wireless KB/Trackpad
    Headset Sony MDR-XB500 Wired and Sennheiser RS-220 Wireless TOSLINK
    OS Windows 8.1 + 8 Linux VM's + Windows 10 Technical Preview
    Network RouterAsus RT-AC68U DLINK DIR-655

    Join Date
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    Quote Originally Posted by TX2000 View Post
    here are some pictures at 85Hz. i changed the refresh to 85 and now the 100HZ option dissapeared
    Cool, that looks good. It will vsync at your refresh rate. Question is, is there a reason to not set vsync when refresh is at 100hz or greater? Is there a noticeable difference in gameplay if vsync is OFF and you are rendering > 100 FPS?

    The extra frame generation is going to cause CPU/GPU resources to be used at a higher rate, generating heat, but not doing much more in the way of improved visuals?

    Thanks TX2000!

  9. #29
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    Quote Originally Posted by hmscott View Post
    Cool, that looks good. It will vsync at your refresh rate. Question is, is there a reason to not set vsync when refresh is at 100hz or greater? Is there a noticeable difference in gameplay if vsync is OFF and you are rendering > 100 FPS?

    The extra frame generation is going to cause CPU/GPU resources to be used at a higher rate, generating heat, but not doing much more in the way of improved visuals?

    Thanks TX2000!
    without Vsync on some games render 100+ frames and you get tearing on your screen. in that game i can hit 150+ fps. Also i tried 110 and
    120Hz . at 120Hz the screen got glitchy so i dialed back to 100. I think 100 is the sweet spot.

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