AMD NAVI 12 chip intended for RX 5800 ?

#5695359 Posted on: 07/30/2019 09:43 AM

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by My calculations 5800XT is the card that will compete with 2080-2080S at 599$ . If AMD brings these number to life , NV 2000 series are finished.

#5695376 Posted on: 07/30/2019 10:23 AM

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Wonder if that's going to be the 60 something compute units card then as a upscale of RDNA1 and Navi10 in-between the RDNA2 and Navi20 rumors for next year if that's still happening.
Would be interesting to see how well a larger chip with more of these cores could compare and how well Navi at least for this first version of it will scale though I guess the issues with the Fury and Vega have mostly been resolved other than from what I am reading memory still being something of a bottleneck for the cards.

Clock speeds and voltage will also be a thing if it's going to be 1.2v or higher or a lower clock speed and how much will clock speed affect performance with the additional cores now helping out.
(And what happens when a user just ticks off another -50 to -100mv in Wattman ha ha, so far it looks like that has remained almost unchanged and it mostly just makes a minimal difference to max boost speed but sustains higher average boost.)

EDIT: Hmm I guess Phoronix and other sources also don't have any info yet from the Linux driver other than maybe the bare basics with device ID's but that might give some insight into the rest of the hardware though perhaps AMD will be faster with a full announcement for when this launches.

Still room for a 5900 too although that's entirely up in the air I guess or a 6000 refresh with the next GPU model if they're making additional tweaks to RDNA next and whatever else.


EDIT: Perhaps it could go higher now too but I assume there is some point where it's not as efficient anymore plus the die size for pushing for something like doubling the existing 40 CU's to 80 though it'll be fun to see how the GPU performs and what the specs will be once info is available on these.

#5695397 Posted on: 07/30/2019 11:52 AM

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I suspect that by the time this "Navi 12" hits the market Nvidia will probably be in the process of taping out the 3xxx series. I hope AMD aims their sights a bit higher than the 2080s'

#5695399 Posted on: 07/30/2019 12:05 PM

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For competitiveness, important part is performance per transistor, per clock at price comparable manufacturing node and achievable clock. Navi surely is clocker. And power is actually not bad.

Navi is currently in better position over Turing except total power draw at peak clock. But thing is that it looks "bad" only because it can clock that high. Bigger GPUs will clock lower even while still being capable to reach 2GHz and more due to power targets.

My 5700 XT clocks to 2GHz at 1.075V And I just thrown that value there. Therefore it may reach it even with lower voltage.
I'll look in time for way to enforce static clock and voltage. To know what is minimal voltage required at 1GHz, 1.2GHz, 1.4GHz, ... This will provide further insight into what can be done and where is optimal clock to power draw point.

#5695424 Posted on: 07/30/2019 01:52 PM

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@Fox2232 Are you on a blower style cooler still or have you modded it? And do you play Hell Let Loose?

I've got an Arctic Accelero Xtreme IV coming shortly and will probably buy the 5700XT blower style anyway, so I was wondering about your overall experience.... Thanks in advance