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Thread: Does my power supply affect the system performance especially my graphics card's perf

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    Default Does my power supply affect the system performance especially my graphics card's perf

    Hi,

    My system specs is
    i5 6600k running 4.4ghz
    z170 A motherboard
    8GB ram
    gtx 980ti
    PSU: Seasonic evo m12 520W +80 bronze

    There are some "Rumors" that if a GPU wasn't able to get enough wattage from the PSU, It will not perform to its maximum capacity. How true is this?

    I almost believe on this rumor since I just recently upgraded my GTX1060 to GTX980 ti... suddenly there's no difference with the FPS results everytime that I play games like Battlefield 1. But when I run some benchmark test like the HeavenUnigine benchmark there's a huge difference between Gtx1060 and Gtx980ti when it comes to their scores (980ti wins) But like what I have said in games I got the same FPS as what gtx1060 provides me.

    during gaming sessions:
    CPU usage 100% / GPU usage 90% - 99% this is my status with my gtx 1060
    CPU usage 100% / GPU usage 50% - 80% this is my status with my gtx 980 ti

    So... Is there's something to do with my PSU since its only 520W (recommended system PSU wattage for 980ti is 600W) Does my PSU affects my GPU performance that's why its not performing like gtx1060 does?

    Thanks.

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    A good 450W is already enough and a PSU can't affect the performance.

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    Quote Originally Posted by miks24 View Post
    There are some "Rumors" that if a GPU wasn't able to get enough wattage from the PSU, It will not perform to its maximum capacity. How true is this?
    That's literally impossible because PSUs don't work like that. If the system pulls too much power, it trips the PSU's safety circuits and it shuts off completely. There is no middle ground.

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    Quote Originally Posted by miks24 View Post
    Hi,

    My system specs is
    i5 6600k running 4.4ghz
    z170 A motherboard
    8GB ram
    gtx 980ti
    PSU: Seasonic evo m12 520W +80 bronze

    There are some "Rumors" that if a GPU wasn't able to get enough wattage from the PSU, It will not perform to its maximum capacity. How true is this?

    I almost believe on this rumor since I just recently upgraded my GTX1060 to GTX980 ti... suddenly there's no difference with the FPS results everytime that I play games like Battlefield 1. But when I run some benchmark test like the HeavenUnigine benchmark there's a huge difference between Gtx1060 and Gtx980ti when it comes to their scores (980ti wins) But like what I have said in games I got the same FPS as what gtx1060 provides me.

    during gaming sessions:
    CPU usage 100% / GPU usage 90% - 99% this is my status with my gtx 1060
    CPU usage 100% / GPU usage 50% - 80% this is my status with my gtx 980 ti

    So... Is there's something to do with my PSU since its only 520W (recommended system PSU wattage for 980ti is 600W) Does my PSU affects my GPU performance that's why its not performing like gtx1060 does?

    Thanks.
    Isn't the GTX 980 more powerful than the GTX 1060?
    CPU: Core i7 8700k, HT enabled, all 6 cores OC'd to 4.8GHz, Vcore = 1.24v
    Heatsink: Noctua NH-D15 with one NF-A15 1500 RPM PWM fan
    Motherboard: Gigabyte Z370X Aorus Gaming 7
    RAM: 4x16GB (64GB) Corsair Vengeance LPX DDR4 RAM 16-18-18-36@3200MHz, Vdimm = 1.35v
    GPU: MSI GeForce GTX 1080 DirectX 12 with 8GB 256-Bit GDDR5X
    SSD1: Samsung 840 EVO 500GB TLC; SSD2: SAMSUNG 860 EVO 1TB 3-bit MLC
    HD: WD 500GB (old); Case: LIAN LI PC-7H Aluminum ATX Mid Tower
    PSU: Seasonic Platinum 660W

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    Quote Originally Posted by ehume View Post
    Isn't the GTX 980 more powerful than the GTX 1060?
    Well OP's 980Ti is comparable to a 1070...

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    You are with Vsync?

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    That was my first thought...

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    CPU usage 100%?

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