AMD tease two dates in October for Zen 3 and RDNA 2

Quoting: Shmerl

Quoting: GuestI hope they will release GPUs that do not need too much power this time.

Yeah, I hope they keep power usage in check and won't go after power creep like Nvidia did with new cards.

Well, they probably will have a card at a power level you want, but it remains to be seen whether that will be at a performance level you want. As long as their silicon can take it and they can slap a big enough heat sink on it, they'll probably have a 300+-ish watt unit at the top end to compete better with the 3080 and not leave performance on the table. So, if you don't want that, you'll have to take a lesser part. It may not be substantially lesser, as power usage goes way up faster then performance does, but that's a tradeoff you'll have to consider.

One thing to note - GPU's are a relatively low margin product for AMD. MM for MM of silicon, CPU's are way more profitable, and have a lot less headaches with regard to software development needed to sustain them. The higher the performance they can get out of each mm of gpu silicon they sell, the higher the profit margin they can get out of the unit. That means leaving a lot of thermal headroom on the table is lost revenue on a thin-er margin product. Naturally there are real limits to how much juice they can run with, namely folks will only tolerate so much noise, and the 12-volt rails of system PSU's can only put out so much power, but within those limits, they get the highest performance they can to be able to charge higher prices for their products.


Last edited by yokem55 on 10 September 2020 at 6:11 am UTC

Quoting: yokem55Well, they probably will have a card at a power level you want, but it remains to be seen whether that will be at a performance level you want. As long as their silicon can take it and they can slap a big enough heat sink on it, they'll probably have a 300+-ish watt unit at the top end to compete better with the 3080 and not leave performance on the table. So, if you don't want that, you'll have to take a lesser part

For example for Sapphire Pulse RX 5700 XT, power requirements are listed as 241 W.

https://www.sapphiretech.com/en/consumer/pulse-radeon-rx-5700-xt-8g-gddr6#Specification

I'd rather not go much higher than that. So hopefully AMD will have some card that's better than RX 5700 XT but isn't too power hungry. I don't need 4K performance.


Last edited by Shmerl on 10 September 2020 at 6:49 am UTC

Quoting: Shmerl

Quoting: GuestI hope they will release GPUs that do not need too much power this time.

Yeah, I hope they keep power usage in check and won't go after power creep like Nvidia did with new cards.

Those new cards are around 100watts and more thirstier than the 20 series those 550 and 650 watt PSUs might not cut it if you go beyond a RTX 3070.

Would consider AMD GPU if the figures and power darw stack up, and the Ray Tracing is decent and supported.
Built current rig ready for next CPU gen of Ryzen so that's settled, GPU open to AMD if its competiitive on Price/Performance.
Ironically for Nvidia, as yet AMD is only platform to run the 30 series on PCIE 4, not that it would make much if any difference over PCIE 3 as yet.

Quoting: Shmerl

Quoting: yokem55Well, they probably will have a card at a power level you want, but it remains to be seen whether that will be at a performance level you want. As long as their silicon can take it and they can slap a big enough heat sink on it, they'll probably have a 300+-ish watt unit at the top end to compete better with the 3080 and not leave performance on the table. So, if you don't want that, you'll have to take a lesser part

For example for Sapphire Pulse RX 5700 XT, power requirements are listed as 241 W.

https://www.sapphiretech.com/en/consumer/pulse-radeon-rx-5700-xt-8g-gddr6#Specification

I'd rather not go much higher than that. So hopefully AMD will have some card that's better than RX 5700 XT but isn't too power hungry. I don't need 4K performance.

1440P seems to be the sweet spot along with the Ultrawides, I find 2560 x 1080 a good compromise as not a huge load over Full HD my RTX2060 Super will do until we see what's coming up, one of my sons asked why was I insisten on 850 watt PSU, told them better to have the capacity, plus running a psu at 50% its usually at its most efficient.

Actually I am more excited to see what is coming in at the lower end. Specifically Athlon APU the 3000 G was a staggering surprise 720p gaming on 35 watt processor in esports titles i grant you but with only 3 graphics cores available and all for 40 pounds amazing. I am very interested to see what the next Athlon hold perhaps quad core with maybe an extra cu to make it a vega 4 if the pricing and thermals stay at those previous levels am def building rig based on that to see what it can do with overclocks.

Quoting: The_Aquabat

Quoting: ShmerlLess hardware bugs and such.

I keep hearing about Navi being buggy, I haven't find bugs on my navi. Maybe I hit the silicon lottery? is there any documentation about the bugs? are there any workarounds?

That was the one I suffered most from
https://gitlab.freedesktop.org/drm/amd/-/issues/929

Disappeared with 5.7.x but for some it seems to prevail.

Quoting: TuxeeThat was the one I suffered most from
https://gitlab.freedesktop.org/drm/amd/-/issues/929

thanks

interesting to note this last comment🤔🤔

QuoteUsing standard 5.3.0-62 ubuntu kernel generic works
Using standard 5.4.0-45 ubuntu kernel runs into hangs/freezes/amdgpu-timeouts (using suggested kernel cmdline flags from this tickets' comments didn't seem to improve things for me)
various other kernels between 5.4 and 5.8 suffer the same issues (I don't remember which versions specifically)
Using "mainline" 5.8.7-050807 ubuntu kernel works again!

I'm also having better results with mainline 5.8.8 ubuntu kernel, I don't have crashes but performance is better than vanilla, xanmod, or liquorix kernel, which was not the case with polaris.


Last edited by Koopacabras on 10 September 2020 at 10:15 am UTC

I'm very excited about the Zen 3 announcement, I want to be rid of my 9900k (crazy temps & power consumption making my life a misery in summer, although it warms my home office in winter :) ). My main hope is they drop the motherboard fan, and hit the 5GHz. With & 10 or 12 core parts, needing no more than a reasonable 130w would be awesome (since when is 130w reasonable ? :p ).

For RDNA 2, I just can't get excited. Somehow I feel it won't be any kind of real competitor to Ampere, wait and see I guess. But I don't think there's much hope to have with a 7nm to "7nm+" transition, to get better perf than 5700XT, they will have to raise power like crazy, which will probably bottleneck before they reach the 2080ti equivalent that the 3070 is, or at least not for the same power consumption at all.

what a coincidence this post gave the bad Mojo to my 5600xt, I swear it was rock stable for 1 month, now I got a Green Screen Of Death. Searched on google seems a fairly common issue, mostly happening on windows. To be honest I experienced this Green Screen of Death before, but only while overclocking, I thought it was only a normal overclocking issue that every gpu has when pushing clocks and voltages (to be fair polaris also had some issues when overclocking). So the culprit might have something to do with clocks or voltage, but this time I was not overclocking just watching a youtube video.

from what I read I guess navi has a lot of issues but they are sometimes very very random. I'm not saying that's something consumers should put up with. But at least it's not the disaster Ryzen gen 1 was at launch. And this time tables have turned with Ryzen 1 the issues were happening on Linux mostly, now Windows users are the ones having more problems.

EDIT: I can't draw a conclusion so soon, but Polaris also had some issues if you overclocked and then reset the clocks to defaults, sometimes after some hours you got hard freezes, maybe I overclocked this morning and because of that I had this Screen of Death? I said I was not overclocking because I reset the clocks to default, but I did overclock this morning in reality.


Last edited by Koopacabras on 10 September 2020 at 7:01 pm UTC

Quoting: The_Aquabatwhat a coincidence this post gave the bad Mojo to my 5600xt, I swear it was rock stable for 1 month, now I got a Green Screen Of Death. Searched on google seems a fairly common issue, mostly happening on windows. To be honest I experienced this Green Screen of Death before, but only while overclocking, I thought it was only a normal overclocking issue that every gpu has when pushing clocks and voltages (to be fair polaris also had some issues when overclocking). So the culprit might have something to do with clocks or voltage, but this time I was not overclocking just watching a youtube video.

That means that your framebuffer is full of 00FF00. Another failure mode is when your framebuffer is full of FF00FF (magenta).