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post #1271 of 1477 (permalink) Old 05-17-2019, 08:42 PM
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I hope 7nm Navi won't go that route, shouldn't since it's a gaming card.

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post #1272 of 1477 (permalink) Old 05-17-2019, 08:45 PM
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Quote: Originally Posted by Gunderman456 View Post
I hope 7nm Navi won't go that route, shouldn't since it's a gaming card.
If it has anywhere near the amount of cores as Vega than it sure will.

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post #1273 of 1477 (permalink) Old 05-17-2019, 08:47 PM
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Quote: Originally Posted by WannaBeOCer View Post
If it has anywhere near the amount of cores as Vega than it sure will.
Goodie. More ways to bork overclocking.

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post #1274 of 1477 (permalink) Old 05-17-2019, 09:45 PM
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Quote: Originally Posted by Gunderman456 View Post
Goodie. More ways to bork overclocking.
I'd rather have a working card than be able to overclock for a few seconds.

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post #1275 of 1477 (permalink) Old 05-17-2019, 09:53 PM
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Quote: Originally Posted by WannaBeOCer View Post
I'd rather have a working card than be able to overclock for a few seconds.
Many people don't undervolt and this causes serious clock stability issues so they need to figure something out that will better serve these people with the reference cards. What they have now for cooling is no good. It only gets worse from here for those that do overclock.

I'd start with making sure the die is completely flat (doable on Navi for instance since they don't have to worry about HBM) if they intend to use HBM in the future so they can use thermal paste with a better heatsink and better/quieter fans that can push some air instead of dinky/cheap fans that are loud and can't do the job. The fans won't need to go at full bore with these changes which will further reduce heat and noise. They co-exist with an industry that has already solved these problems. They just need to wake up.

Anyway, whatever card I get will be under water.

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post #1276 of 1477 (permalink) Old 05-18-2019, 06:43 AM
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Sometimes this happens when there's a rush to get the product out... compromises in design forced by being first on the block with a 7nm consumer GPU. AMD is not able to manage the heat production and flux (and water cooling a part, especially a canary-in-the-coal-mine part, can actually lead to failure much sooner since you now ask the component/part to carry a current that would otherwise attenuate ("throttle") )
Nvidia does this crap also. When you load a Titan V with DP work it down clocks the core to P2 (same with quadro cards) to control current flow. You can defeat this with NVI but then the card will pull current well above the AOR (acceptable operating range) and even water cooled they choke in the long run. NV GTX cards are DP crippled so no comparison in my case. The 2 2080Ti FEs I have are WC'd. Very fast gaming and content creation cards for sure.

That said, running the VII and Titan V (I have 2 TVs) as they come for DP, the VII does ~ 75-80% of the work a TV can for... what, 25% the price! THat's pretty amazing. It screams at you while doing it, but hangs in there, so far.

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post #1277 of 1477 (permalink) Old 05-18-2019, 10:55 AM
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Quote: Originally Posted by lowrider_05 View Post
No does not work in any games except if they support DX12/Vulkan mgpu from the developer side.

Dang. Playing The Division 2 and frames roam around 45ish. The temptation is there to get another card, but if its unsupported for the most part then its very disappointing. I guess we gotta wait till 2020 it seems.

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post #1278 of 1477 (permalink) Old 05-18-2019, 12:56 PM
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Quote: Originally Posted by Gunderman456 View Post
I hope 7nm Navi won't go that route, shouldn't since it's a gaming card.
The clue is in the "7nm".

If you look at the size of the transistors of the Radeon VII and the spaces between them under a microscope, compared with, say, the 55nm 4750 I had 10 years ago, you'll probably reach the conclusion that cards are only going to get hotter. EUV will help, but crushing more and more tiny transistors into smaller and smaller spaces necessarily means denser heat profiles.

It will be interesting to see what the various chip designers and fabs come up with to mitigate this, whether it be microscopic heatpipes made out of of exotic materials, or minute embedded thermoelectric heatpumps wicking the heat away towards the spreader.

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post #1279 of 1477 (permalink) Old 05-19-2019, 04:50 AM
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What about going wider(i know GCN is limited to 4 frontend "groups")? I mean, i have a R9 Fury Nano with 4096 Shaders @1Ghz and a RX480 with 2304 Shaders @1.34Ghz, also 28nm vs 14nm. Both cards consume almost the same power: 110w(Bios TDP)+GDDR5 for the 480, 145w(Bios TDP)+HBM for the Nano.
It' clear to me that the GCN uArch really don't like high clocks, Polaris is "fine" around 1.3Ghz, Vega around 1.4-1.5Ghz, now Vega @1.8Ghz is running way past the efficent part of the Perf/W curve. I understand that AMD need to find 'easy' performance by spending the 7nm "extra TDP" increasing the clocks, but now we need something new as architecture. This VegaIV is performing great i must say, but it feels like a 5Ghz FX Bulldozer CPU...

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post #1280 of 1477 (permalink) Old 05-20-2019, 04:26 AM
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Good u guys posted some yt and ss where I saw ur OC settings, appears that I have to put more V to starting position(808Mhz) to have somewhat stable OC. Like [email protected] with 1175Mhz HBM need 0.9V. Without it crashes in few first seconds.
Now this give me 76C hotspot temp while GPU is 46, HBM 48, while gaming WOT like 20 mins

1900Mhz shows 74C max hotspot. So not so bad as for custom WC
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