RX 6600 XT in a physical 8x slot vs 16x?

Discussion in 'Videocards - AMD Radeon' started by Espionage724, Jun 23, 2022 at 5:52 PM.

  1. Espionage724

    Espionage724 Master Guru

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    GPU:
    XFX RX 6600 XT (8G)
    RX 6600 XT only does 8x. My motherboard has one PCI-E slot with the full amount of pins for 16x, and the second slot is half the pins.

    Is there any difference at all whatsoever in using the second 8x slot vs the 16x slot? The GPU itself has the full amount of traces on the PCI-E end.
     
    Last edited: Jun 23, 2022 at 6:28 PM
  2. cucaulay malkin

    cucaulay malkin Ancient Guru

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    no it doesn't it has 8

    [​IMG]

    thats 16 lanes

    [​IMG]
     
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  3. Espionage724

    Espionage724 Master Guru

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    GPU:
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    Am I missing something? The bottom of that GPU is covered in gold traces along the entire section.

    I haven't physically examined the card to see if the traces were actually connected, but I've had a card before that just left the other half of that rail completely blank.
     
  4. cucaulay malkin

    cucaulay malkin Ancient Guru

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    yes, the traces on the pcb
     
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  5. Undying

    Undying Ancient Guru

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    You are running it with 2700x so thats pcie3 x8 and no sam support. It will bottleneck especially at 1440p.
     
  6. cucaulay malkin

    cucaulay malkin Ancient Guru

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    too old for amd to care, need pcie4 to run 6600xt
    pcie lane bottleneck shows especially when you're playing cpu dependent games. you have to decide if you care. for single players I wouldn't, but for competitive shooers it's a big hit

    RX 6600 XT im.png
     
  7. Undying

    Undying Ancient Guru

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    Even he does swap the cpu with x470 still no pcie4, its a pickle.
     
  8. cucaulay malkin

    cucaulay malkin Ancient Guru

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    no it isn't just stop supporting a company that cuts pcie lanes for 400eur cards
    and requires you to have gen4 for same performance as in the reviews, with cutting corners and artificial limitations
     
  9. Undying

    Undying Ancient Guru

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    He have rtx3060 but 6600xt outperforms it even with a pcie3 bottleneck. :D
     
  10. cucaulay malkin

    cucaulay malkin Ancient Guru

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    no it doesn't
    at 1440p they're the same
    at 3440x1440 3060 wins

    with 6600xt on 3.0 even more so if the performance hit can be over 10% in competitive shooters
     

  11. Trunks0

    Trunks0 Master Guru

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    GPU:
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    Need a mobo upgrade to get around the bottle neck. Not a terrible idea, although AM5 is around the corner, it's now looking like AM4 is to co-exist with AM5. Meaning these late gen AM4 platforms might get new CPU releases longer than anyone expected.
     
  12. Undying

    Undying Ancient Guru

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    He showed the benchmarks of his both gpus in amd thread and 6600xt was faster on his 2700x system. Although it was a syntetics.
     
  13. cucaulay malkin

    cucaulay malkin Ancient Guru

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    and cpu

    facepalm
     
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  14. Trunks0

    Trunks0 Master Guru

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    For the full potential yes. Although not immediately if they wanted to wait for whatever reason (like try and catch a sale sorta thing)
     
  15. cucaulay malkin

    cucaulay malkin Ancient Guru

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    lol,why would he change the board alone
    it's a x470 it will support even r5000
    his problem is pcie lanes, so the problem is gpu not the board.

    imo look for a 6700xt, it's the best solution to his problem right now, sell the 6600xt and read some more before you buy.
     

  16. Trunks0

    Trunks0 Master Guru

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    Does his mobo support PCI-E 4.0 speeds?

    *typo
     
  17. cucaulay malkin

    cucaulay malkin Ancient Guru

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    you don't need 4.0 for 6700xt
    you do for 6600xt

    ironic,isn't it
     
  18. Undying

    Undying Ancient Guru

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    No even with the ryzen 5000 inside the board only suppprts pcie3.
     
  19. Undying

    Undying Ancient Guru

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    Sure it does without pcie4 you wont have sam support. All rdna2 needs pcie4.
     
  20. cucaulay malkin

    cucaulay malkin Ancient Guru

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