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GTX 970, new identical card with slower performance. Switch to older BIOS?

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orvlnet
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2017/12/16 18:49:52 (permalink)
First post here.  Greetings!
 
I just bought a second GTX 970 04G-P4-2974-KR to SLI with the one I've had for 3 years.
 
The default clock speed under load is 1366 for the new card where the old card runs at 1404.  Also, the old card has 81% ASIC quality in GPUZ and the new one is only 70%...
 
Noticed that the new one has a different BIOS version. 
 
I'm wondering if anyone knows why I would be seeing these differences and if it would maybe make the new card perform better if I flashed it back to the older bios from my original card?
 
Thanks in advance for any help!
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    Dr.Death
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    Re: GTX 970, new identical card with slower performance. Switch to older BIOS? 2017/12/17 06:32:21 (permalink)
    no 2 cards  will be / run the same   that falls under that ''luck of the draw ''  you read about      like you got in the luck with the first card that out of the box may of been a tad bit over the average  and now your 2ed card maybe art average or a tad below  
     
    all your guaranteed is what evga specs on that card  anything less then that can be rma'ed   anything over that is  just +  to the luck 
     
    you could risk a bios flash , but  it could help  or show no change at all  or brick the card then your 1000% S.O.L   and got a nice new paper weight
     
    evga specs

    Specifications

    • Base Clock:  1165 MHZ
    • Boost Clock: 1317 MHz
    • Memory Clock:7010  MHz Effective
    so your 2ed card at 1366 MHz   out of the box  is 100% fine as far as evga goes
     
     
    just to add even with a lesser clock if more stable  could give = to /  better performance  overall then a higher clocked card  not quite as stable ?? [opinion]
    post edited by Dr.Death - 2017/12/17 06:35:57
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    Sajin
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    Re: GTX 970, new identical card with slower performance. Switch to older BIOS? 2017/12/17 13:13:00 (permalink)
    Flashing the vbios to a different version isn't going to help your performance.


    See my current build here: https://forums.evga.com/My-bench-rig-unlimited-power-m3596024.aspx
    RTX 2080 Ti 4-way SLI?!?!: https://forums.evga.com/RTX-2080-Ti-4way-SLi-set-by-yours-truly-m2954756.aspx
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    bill1024
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    Re: GTX 970, new identical card with slower performance. Switch to older BIOS? 2017/12/17 13:25:46 (permalink)
    You can Dl MSI afterburner and boost the slower card up close to what the other card is running at.
    Then set a custom fan curve to keep them cooler.
     
    What motherboard are the two GPUs on?

     Life is too short to carry a cheap pocket knife

       
     
    #4
    joeymir
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    Re: GTX 970, new identical card with slower performance. Switch to older BIOS? 2017/12/20 16:00:47 (permalink)
    Like others have already mentioned, it's the Silicon Lottery. notice your much lower ASIC quality on your new card. You are witnessing first hand how it effects your GPU. Voltage is likely higher along with lower boost clock speeds. One of my 980Ti's has about a 6% lower ASIC then the other, and go figure, it uses more voltage then the other card, and when SLI is enabled, my overclock boost speeds are lower by about 30Mhz. At the end of the day, remember the performance difference is negligible, and the added card for SLI is already going to net you some very nice performance gains. Try and use MSI Afterburner or EVGA Precision to create a custom fan profile, as to keep your cards cooler, allowing them to boost higher as you overlock as well. Keeping your card around 75c with a custom fan profile, with a temp limit of about 84, should allow you to reach a pretty decent overclock.

    Gigabyte X570 Aorus Master | Ryzen 9 5900X | 32GB Crucial Ballisitx DDR4 3600MHz | MSI Radeon 6900 XT | Samsung 950 Pro 512GB | 2x Crucial MX500 1TB Raid-0 | 2x WD Velociraptors 500GB Raid-0 | Seasonic Focus Platinum 850W | Lian-Li PC-O11

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