AMD to unveil Zen 4 CPUs at CES 2022

[Bencher]

Some do, for sure,

The GDDR6X memory IC's on Ampere cards run at 100c + every time you use it for what its intended.

How do you like your 3080 now?

Got a 3090, and I swapped pads already. Although it wasn't hitting 100+c, was lucky to get a decent one, was running at 96c during mining, around 80c in very heavy games like cp2077. Also, 100c is fine when the tj max is 110. 90c is not fine when the tj max is .... 90c, right?

Regarding laptops, again - are we talking about 200w cpus on laptops? Cause if not, then your point is irrelevant. Electromigration accelerates by a lot at high wattages + high heat.

 

[Twinz]

I don't think consumers have access to as much relevant data as the engineers.

We look at the limits engineers choose for one part and use that data to decide that the limits engineers chose for a different part are dangerous.

I'm not saying these companies always get it right, but they certainly have a financial incentive to chose safe limits on their hardware.

 

[uscool]

Aida64 stress test, about 100 watts on the CCD.

just ran Aida64 stress test 5900x 15 min run max 72c 144w clock mostly 4.4-4.5ghz at times I see it bounce to 4.6ghz z73 360 aio fans at 1200rpm
I know the 5800x is meant to run hotter because the CCD is all on one side ?

 

[humbug]

Got a 3090, and I swapped pads already. Although it wasn't hitting 100+c, was lucky to get a decent one, was running at 96c during mining, around 80c in very heavy games like cp2077. Also, 100c is fine when the tj max is 110. 90c is not fine when the tj max is .... 90c, right?

Regarding laptops, again - are we talking about 200w cpus on laptops? Cause if not, then your point is irrelevant. Electromigration accelerates by a lot at high wattages + high heat.

You got a decent one running at 96c during mining, it that a 5 minute activity, is it?

Electromigration is a combination of heat and voltage, electrons degrade the material at the molecular level due to resistance in the metal, the higher the temperature the higher the resistance.

The circuitry is designed with tolerances for that. Henc the cited temperature ratings.

 

[humbug]

just ran Aida64 stress test 5900x 15 min run max 72c 144w clock mostly 4.4-4.5ghz at times I see it bounce to 4.6ghz z73 360 aio fans at 1200rpm
I know the 5800x is meant to run hotter because the CCD is all on one side ?

What is your per CCD wattage? at 144 watts you need to divide that by at least two, especially if that's package power as that would include the IO die.

So you're probably only running about 65 to 70 watts per CCD, that's a much lower heat density compared with my 90 to 100 watts.

Your results prove my theory, you're using more power with lower temps, because your thermal density is lower than mine.

 

[Deleted member 258511]

What i'm saying is you have to buy a reasonable cooler, a high end one is not a must.

i have a 360mm AIO on my 5800X, it still reaches around 82c, people with the same CPU using a 240mm version of the the same cooler get exactly the same temps, of course they do, for reasons i'm trying to explain.

Also, don't get so hung up about 80 to 90c temrpitures under high load, its completely normal, it doesn't do them any harm, they are designed to run like that.

At what point does the 5800x throttle?

The examples I’ve seen have not exactly been “high load” just gaming temps. I certainly wouldn’t be bothered if this was a stress test for example, but are these temps while gaming that you are experiencing?

 

[uscool]

What is your per CCD wattage? at 144 watts you need to divide that by at least two, especially if that's package power as that would include the IO die.

So you're probably only running about 65 to 70 watts per CCD, that's a much lower heat density compared with my 90 to 100 watts.

Your results prove my theory, you're using more power with lower temps, because your thermal density is lower than mine.

yup makes sense one CCD is slightly lower in temps thats because have core on lower negative, I only see CPU package power and how much watts each core is using in HWinfo I may still have the old version , I have individually set each core using Curve Optimizer took some time testing and tweaking each time

 

[humbug]

At what point does the 5800x throttle?

The examples I’ve seen have not exactly been “high load” just gaming temps. I certainly wouldn’t be bothered if this was a stress test for example, but are these temps while gaming that you are experiencing?

Lol well that's another thing, it doesn't "throttle" until its running below 3.8Ghz, anything over that is 'Boost'

The cited boost is 4.75Ghz, in R23 MT it runs at between 4.6 and 4.7Ghz, stock. 4.85Ghz in games, that's all core because its not a high load, while the boost printed on the box is 4.75Ghz its actually 4.85Ghz, they all are, because reasons....

The boost is reduced very gradually as it gets hotter, like 3Mhz at a time, it starts that boost reduction post 60c in high loads.

 

[Major774]

Some do, for sure,

The GDDR6X memory IC's on Ampere cards run at 100c + every time you use it for what its intended.

How do you like your 3080 now?

Nvidia went cheap on the thermal pads. I had to replace the pads on day 1, crazy memory temps of 100C+

After the pad change, memory temps were hovering in the 80C’s.

 

[Bencher]

You got a decent one running at 96c during mining, it that a 5 minute activity, is it?

No, that's why I swapped pads

 

[humbug]

You're missing the point, deliberately.

 

[Bencher]

You're missing the point, deliberately.

The point is some aibs **cked up with pads on ampere cards (gigabyte for example), so that makes it okay for amd to release cpus that are impossible to cool (according to the leaks of course, not saying that it's definitely the case). Okay man

 

[humbug]

The point is some aibs **cked up with pads on ampere cards (gigabyte for example), so that makes it okay for amd to release cpus that are impossible to cool (according to the leaks of course, not saying that it's definitely the case). Okay man

The point is those memory IC's on those Nvidia GPU's are fine running at those temperatures long term.

Stop being so hyperbolic, AMD didn't "release a CPU that's impossible to cool" millions have been sold and they are all fine.

 

[Deleted member 258511]

Lol well that's another thing, it doesn't "throttle" until its running below 3.8Ghz, anything over that is 'Boost'

The cited boost is 4.75Ghz, in R23 MT it runs at between 4.6 and 4.7Ghz, stock. 4.85Ghz in games, that's all core because its not a high load, while the boost printed on the box is 4.75Ghz its actually 4.85Ghz, they all are, because reasons....

The boost is reduced very gradually as it gets hotter, like 3Mhz at a time, it starts that boost reduction post 60c in high loads.

I’m referring to thermal throttling. Like you’ve just explained once it hits 60 degrees it starts dialling the clocks back. Surely if that’s the case then your temps being in the 80-90 range is going to impact performance.

I’m looking into getting an AMD CPU once pricing is released however I’m a little concerned about temps. I’ve read that the 5950x especially can’t be undervolted because it is already at the limit. If that’s the case how do I reduce temps? I’ve always been able to undervolt Intel CPU’s without issue as I’d prefer lowering clocks a little for better temps rather than overclocking for a few frames.

 

[Bencher]

The point is those memory IC's on those Nvidia GPU's are fine running at those temperatures long term.

What do you mean they are fine? How do you know they are fine? Gigabyte already revised a bunch of their GPUs with better pads, nvidia was giving you free RMAs with their founders edition cards that had high vram temperature. The products aren't out of warranty yet, so how the heck do you know theyll be fine?

Stop being so hyperbolic, AMD didn't "release a CPU that's impossible to cool" millions have been sold and they are all fine.

Millions of zen 4 have been sold? Okay buddy

 

[humbug]

I’m referring to thermal throttling. Like you’ve just explained once it hits 60 degrees it starts dialling the clocks back. Surely if that’s the case then your temps being in the 80-90 range is going to impact performance.

I’m looking into getting an AMD CPU once pricing is released however I’m a little concerned about temps. I’ve read that the 5950x especially can’t be undervolted because it is already at the limit. If that’s the case how do I reduce temps? I’ve always been able to undervolt Intel CPU’s without issue as I’d prefer lowering clocks a little for better temps rather than overclocking for a few frames.

Honestly i don't know, these are completely new CPU's, i won't know how they behave until we know more about them, or until i get a hold of one, which is unlikely as i'm skipping this generation.

Incidently this is a big forum, we need an AMD rep here whose 'only' job it is to answer questions like this.

May i ask exactly why you are concerned about temps? For example if you're afraid it might heat up the room too much what i would say is it doesn't work like that, its the wattage not the running temperature that heats up the room and these CPU's are not a high wattage.

 

[chroniclard]

I’m referring to thermal throttling. Like you’ve just explained once it hits 60 degrees it starts dialling the clocks back. Surely if that’s the case then your temps being in the 80-90 range is going to impact performance.

I’m looking into getting an AMD CPU once pricing is released however I’m a little concerned about temps. I’ve read that the 5950x especially can’t be undervolted because it is already at the limit. If that’s the case how do I reduce temps? I’ve always been able to undervolt Intel CPU’s without issue as I’d prefer lowering clocks a little for better temps rather than overclocking for a few frames.

You have some bad info there.

 

[Bencher]

these CPU's are not a high wattage.

240w for the 7950x, what do you consider high wattage?

 

[humbug]

240w for the 7950x, what do you consider high wattage?

is that the power consumption?

 

[Joxeon]

At what point does the 5800x throttle?

The examples I’ve seen have not exactly been “high load” just gaming temps. I certainly wouldn’t be bothered if this was a stress test for example, but are these temps while gaming that you are experiencing?

My 5800X actually runs hotter during gaming due to the heat output from the GPU, R23 runs around 76c but in gaming it can hit 80c+ and this is in a silverstone RL06 which is one of the best airflow cases for CPU and GPU temps according to gamers nexus so if Zen 4 chips are already hitting 90+ in stress tests then with the new higher tdp GPUs on the way we might end up seeing throttling in games.