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[Various] Radeon VII Reviews

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post #61 of 937 (permalink) Old 02-07-2019, 10:31 AM
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Quote: Originally Posted by AlphaC View Post
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Right now it looks like a GTX 1080 Ti / RTX 2080 competitor in most things that aren't Nvidia biased. For people with Freesync TVs (HDMI) this may be worth it. However, it has basically no headroom.

Applying the same performance per watt gains to Vega 56 or RX 580 would be neat.

"Wait for Vega" is dead, it's "wait for Navi" now.
I really don't know so don't take this the wrong way, but do we know for sure that it has no headroom?

From what I understand, the limit now for OC'ing is due to an API change that rendered all of the OC utilities useless. Did I misunderstand that?
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post #62 of 937 (permalink) Old 02-07-2019, 10:35 AM
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The German reviewers undervolted VII and it was MORE power efficient than 2080 without any performance hit.

Ray-rays and other stuff is a dead tech for at least a year or two.

The only real issues with this card are:

- noise (I wonder if it can be fixed via a more clever cooling profile)
- terrible drivers.
- availability
- price (somewhat)

Quote:
but do we know for sure that it has no headroom?
That's just propaganda. Vii can be OCed to 2000+ Mhz. 3dnews did it without using dry ice, but they had to max its fans

1) 1,13 V, +20% power, maxed out fans, 2002 Mhz core clock
2) 1,08 V, 1914Mhz under load.

Last edited by Semel; 02-07-2019 at 10:40 AM.
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post #63 of 937 (permalink) Old 02-07-2019, 10:35 AM
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Quote: Originally Posted by Defoler View Post
Here is my problem with both statements.

In order to rival intel, AMD basically had to "abandon" their GPU market, basically rebranding polaris every few months in order to make money out of it, and if they didn't have the crypto market, they could have completely sunk their sales on that front.

Secondly, it will really depends if the stocks are really that low. If they are that low, then it won't really be a 2080 rival, since you can't get one, but time will tell on this one.
The price could really be that they either losing or not making any money on that GPU, and it was released just to be existent, nothing more.
The major issue is that R&D for cards specifically for gaming is too high and the return on investment is too low for both companies. We see this with the three architectures that were release Vega, Volta and Turing have large gains in GPGPU and content creation. All the major performance gains we see are for those task while gaming has seen a small bump in performance. I'm also impressed by how well it keeps up with the RTX 2080 on Linux in gaming compared to how behind the Vega 64 is compared to the GTX 1080 on Linux.

Couldn't get my hands on one at launch but I'll see if I can some time this month.

https://www.phoronix.com/scan.php?pa...ii-linux&num=1

Quote: Originally Posted by Semel View Post
The German reviewers undervolted VII and it was MORE power efficient than 2080 without any performance hit.

Ray-rays and other stuff is a dead tech for at least a year or two.

The only real issues with this card are:

- noise (I wonder if it can be fixed via a more clever cooling profile)
- terrible drivers.
- availability
- price (somewhat)
Linux drivers are amazing so it's all good.

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post #64 of 937 (permalink) Old 02-07-2019, 10:38 AM
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There's no reason to think that 7nm is going to allow for much higher clocks , most reviews have the OC at 8%. Power consumption is already rather high so I don't think it's a good plan anyway on the 2 slot cooler it has.

I think der8auer pushed it to 2100MHz on dry ice with the auto overclocking so I wouldn't hold out so much hope on the headroom.

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post #65 of 937 (permalink) Old 02-07-2019, 10:41 AM
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Quote: Originally Posted by AlphaC View Post
There's no reason to think that 7nm is going to allow for much higher clocks , most reviews have the OC at 8%. Power consumption is already rather high so I don't think it's a good plan anyway on the 2 slot cooler it has.

I think der8auer pushed it to 2100MHz on dry ice with the auto overclocking so I wouldn't hold out so much hope on the headroom.
3dnews did it without using dry ice, but they had to max its terrible fans

1) 1,13V, +20% power, maxed out fans, 2002 Mhz core clock

2) 1,08V, 1914/1950Mhz under load.

RTX cards are not better in this regard. AIB cards clock at 1900+ out of the box and if you try to OC them manually you'll get the same +100+Mhz core clock increase.
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post #66 of 937 (permalink) Old 02-07-2019, 10:45 AM
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The biggest question I have right now is whether or not the reports of overclocking problems that reviewers are having can be overcomed/fixed. Because, if the Radeon Vii truly can't be pushed any further out of the box, then that "Radeon Vii is slightly behind the 2080" is going to turn to a "2080 is legitimately ahead", because many 2080's can do 2100mhz, provided ample cooling, and the Samsung memory equipped cards can go to +1200/1300mhz on the GDDR6.

I did get a laugh out of the "hopefully the Radeon Vii with driver improvements can trade blows with the RTX 2080ti in some games" comment. Maybe those reports I have seen of the AMD guys always saying "just wait until the drivers improve..." actually are true.

Funny that the RTX 2080 has gotten so much hate, and so many comments on how terrible of a value it was, and AMD has actually managed to release a card that is a legitimately worse value.

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post #67 of 937 (permalink) Old 02-07-2019, 10:45 AM
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Quote: Originally Posted by AlphaC View Post
There's no reason to think that 7nm is going to allow for much higher clocks , most reviews have the OC at 8%. Power consumption is already rather high so I don't think it's a good plan anyway on the 2 slot cooler it has.

I think der8auer pushed it to 2100MHz on dry ice with the auto overclocking so I wouldn't hold out so much hope on the headroom.
Most of us will be undervolting it just like we did with the Vega 64, it shocks me how Vega can easily undervolt by 50-70mV without losing performance. Or undervolt by 100-350mV for a small loss in performance. My Vega 64 can run at 900mV and sustain 1530Mhz instead of 1730Mhz @ 1200mV and power drops from 340w down to 185w

Looks like the Radeon VII also excels when undervolted. https://www.extremetech.com/computin...re-looking-for

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post #68 of 937 (permalink) Old 02-07-2019, 10:51 AM
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Quote: Originally Posted by Semel View Post
3dnews did it without using dry ice, but they had to max its terrible fans

1) 1,13V, +20% power, maxed out fans, 2002 Mhz core clock

2) 1,08V, 1914/1950Mhz under load.

RTX cards are not better in this regard. AIB cards clock at 1900+ out of the box and if you try to OC them manually you'll get the same +100+Mhz core clock increase.
Turing's boost is thermal dependant. Many 2080's will do 2100mhz, some even higher, provided temps are in check. De8rauer hit 2340mhz running a 2080 on dry ice. And the GDDR6 on the RTX cards gets a really nice boots when overclocked.

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post #69 of 937 (permalink) Old 02-07-2019, 10:55 AM
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Did any one you tried AORUS ENGINE for Overclocking?
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Support More Products.
https://www.gigabyte.com/Graphics-Ca...ort-dl-utility
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post #70 of 937 (permalink) Old 02-07-2019, 10:55 AM
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Looks good. I'd like to see some 5k/8k reviews. This card probably shines at 5k.

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