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Thread: RX6500XT review thread

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    Moosing about! CAT-THE-FIFTH's Avatar
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    RX6500XT review thread

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    Group tests

    PCI-E Scaling

    Looking at the performance data generated by this review I suspect that even at PCIe 4.0 x4 there's a significant performance loss for the RX 6500 XT. My estimate would be around 6-10%, which isn't huge, especially in this segment, but it's still performance that could have been easily be achieved for a minimal cost increase. If the cost difference was substantial, everybody would have slimmed down their PCIe interfaces for a long time.

    Averaged over our game test suite, we found a 13% loss in performance when switching from the PCIe 4.0 interface to PCIe 3.0. This will happen to you when running the Radeon RX 6500 XT on an Intel platform that's older than Rocket Lake (10th generation and older). On the AMD side PCIe 3.0 is the fastest option when using first generation Zen processors, or when using lower-end motherboards with cheaper chipsets.

    I also ran a full batch of tests for the RX 6500 XT operating at PCI-Express 2.0 mode, which is a fairly unlikely scenario. I doubt there's still PCs used for serious gaming with that bus speed. It's still an interesting data point for science. Here the performance loss is another 21% vs PCIe 3.0, and 34% in total when compared against the PCI-Express 4.0 baseline.


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    Last edited by CAT-THE-FIFTH; 19-01-2022 at 10:25 PM.

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    Re: RX6500XT review thread

    *Hugs his 8GB RX 480, another year bud

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    Re: RX6500XT review thread

    it seems nobody likes it..
    what they been thinking with that pcie x4 and 64bit memory bus?
    ehh...

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    Re: RX6500XT review thread

    Quote Originally Posted by ChaosUK View Post
    it seems nobody likes it..
    what they been thinking with that pcie x4 and 64bit memory bus?
    ehh...
    Not pushed to nearly 3GHz, this would make a great laptop chip and that's probably what it was designed for before * things happened.

    Would also be fine as an eGPU via Thunderbolt which AFAIK is x4 max, but 1) even then 8GB is nice as you don't want to use Thunderbolt to push textures all the time and 2) AMD never did get their act together and add Thunderbolt to their laptops. Guess they are waiting for USB 4.

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    Re: RX6500XT review thread

    laptop chip yes.. discrete card? NO..
    it just seems like a cash grab to me

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    Re: RX6500XT review thread

    Scalpers have bought them all, hopefully its a miss fire and nobody is willing to pay scalper prices.

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    ALT0153™ Rob_B's Avatar
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    Re: RX6500XT review thread

    Lots on ebay for silly prices, but none sold so far.

    One has 2 days left and is @ £225
    Others are BiN starting @ £350

    I really, really hope scalpers made a mistake on these.

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    Re: RX6500XT review thread

    Quote Originally Posted by ChaosUK View Post
    it seems nobody likes it..
    what they been thinking with that pcie x4 and 64bit memory bus?
    ehh...
    They were thinking they can make any old rubbish and still sell out.

    Thus far, they were right.

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    Re: RX6500XT review thread

    problem is some people don't read reviews... so they will still buy it..
    and regret afterwards

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    Re: RX6500XT review thread

    Quote Originally Posted by ChaosUK View Post
    problem is some people don't read reviews... so they will still buy it..
    and regret afterwards
    In the before times this would have been. what, and £100 card? At £80 I would say it was pretty good. It's the price that sucks.

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    Re: RX6500XT review thread

    Quote Originally Posted by Rob_B View Post
    Lots on ebay for silly prices, but none sold so far.

    One has 2 days left and is @ £225
    Others are BiN starting @ £350

    I really, really hope scalpers made a mistake on these.
    Amen to that. I hope they all lose a lot of money. It will discourage them the next time there looks like a scalping opportunity.

    Quote Originally Posted by DanceswithUnix View Post
    In the before times this would have been. what, and £100 card? At £80 I would say it was pretty good. It's the price that sucks.
    Agreed but still with the PCIex4 caveat. I understand why they did it but it really does cripple this card for any king of longevity. Either x8 or 8GB would have made this a much longer term card.
    On a different note, those fixated on the 64 bit bus. It's irrelevant. You can't compare bus widths of cards with a sizable cache to cards without. If the GPU had 8GB on die and so a bus width of 0 bits would that make it rubbish?
    "In a perfect world... spammers would get caught, go to jail, and share a cell with many men who have enlarged their penises, taken Viagra and are looking for a new relationship."

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    Re: RX6500XT review thread

    Quote Originally Posted by badass View Post
    Either x8 or 8GB would have made this a much longer term card.
    That is very true. It also seems a lot of money for a card that isn't capable of decent VR (judging from running my Rift on an 8GB RX570 for some time).

    OTOH, my machine at work has an RX550 in it. For a low end "5" class card this does have quite a bit more punch.
    Last edited by DanceswithUnix; 21-01-2022 at 03:12 PM.

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    Re: RX6500XT review thread

    Quote Originally Posted by Apex View Post
    *Hugs his 8GB RX 480, another year bud
    Me too - Does your's overclock well? I have a Nitro+ and the autoOC in the radeon drivers gives me better than rx580 speeds which I think puts me roughly on parity to this card. Crazy when you think its 6 years old and was <£250. It means prices vs performance are basically the same. I remember when a mid range card could be beaten a card half its price in less than two years.
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    Re: RX6500XT review thread

    The biggest slap on the face is that 6500xt is slower than 5500xt

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    Re: RX6500XT review thread

    Quote Originally Posted by ChaosUK View Post
    The biggest slap on the face is that 6500xt is slower than 5500xt
    AMD fans on forums are already starting to defend this release.

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    Re: RX6500XT review thread

    Quote Originally Posted by CAT-THE-FIFTH View Post
    AMD fans on forums are already starting to defend this release.
    Fanboys gonna fanboy. Twas ever thus.

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