7800X3D Temperature Question

[pepsi_man004]

Hi!

 

I have just built a new PC which my parts are:

 

AMD 7800X3D

RTX 4080 SUPER

Deepcool AK620 Cooler

 

I was just wondering if my CPU temps while gaming are fine? Or are they too high?

 

I currently average 65-70c when gaming with a max of 75c!

 

Thanks!

[Hinjima]

16 minutes ago, joe_ollie909 said:

Hi!

 

I have just built a new PC which my parts are:

 

AMD 7800X3D

RTX 4080 SUPER

Deepcool AK620 Cooler

 

I was just wondering if my CPU temps while gaming are fine? Or are they too high?

 

I currently average 65-70c when gaming with a max of 75c!

 

Thanks!

Your CPU temperatures are perfect!  The Ryzen 7000 series of CPU's run hot by design and 75c max is totally fine and absolutely nothing to worry about

You can even let it go up to 85c without worrying at all.

[Agall]

15 minutes ago, joe_ollie909 said:

AMD 7800X3D

I currently average 65-70c when gaming with a max of 75c!

Solid, 75C makes it sounds like you're undervolting/underclocking it. The chip likes to ride close to the sun with the +20C insulator that is the 3D v-cache mod.

[pepsi_man004]

2 minutes ago, Hinjima said:

Your CPU temperatures are perfect!  The Ryzen 7000 series of CPU's run hot by design and 75c max is totally fine and absolutely nothing to worry about

You can even let it go up to 85c without worrying at all.

 

2 minutes ago, Agall said:

Solid, 75C makes it sounds like you're undervolting/underclocking it. The chip likes to ride close to the sun with the +20C insulator that is the 3D v-cache mod.

im glad i ask you guys! reddit make it sound like the temps are horrific!

[ChaoticChaosx]

13 minutes ago, joe_ollie909 said:

Hi!

 

I have just built a new PC which my parts are:

 

AMD 7800X3D

RTX 4080 SUPER

Deepcool AK620 Cooler

 

I was just wondering if my CPU temps while gaming are fine? Or are they too high?

 

I currently average 65-70c when gaming with a max of 75c!

 

Thanks!

Those temps are fine when gaming. I’m on water and never go above 70c on my 7800x3D. I wouldn’t worry about 75c at max temps. I used to use PBO 75c tjmax with co -15. 

[Agall]

13 minutes ago, joe_ollie909 said:

 

im glad i ask you guys! reddit make it sound like the temps are horrific!

Redditors don't understand basic thermodynamics.

 

The 3D v-cache mod involves shaving down the die to then add the 3D v-cache 64MB on top of the center part of the die. This also involves adding silicon spacers to get the right z-height for the cores. Adding heat transfer layers will cause a raise in heat source temperature with the rest of the variables controlled.

 

For 7000x3D, its about +20C compared to regular Ryzen 7000 in most standard scenarios. This is a value I determined through multiple samples of 7950x3D's which have both a non 3D and 3D v-cache CCD in the same operating environment, where the difference in per core temps at the same wattage draw between the CCDs was about 20C.

 

I would even say 75C is too low and would indicate that you're not getting full performance somehow (or you're direct-die cooling), whether that's a very aggressive undervolt or you're limiting the max temp. A 7800x3D under all core loading should get to 80-85C at an all core boost to 4.8-4.9GHz.

[PDifolco]

49 minutes ago, Agall said:

Solid, 75C makes it sounds like you're undervolting/underclocking it. The chip likes to ride close to the sun with the +20C insulator that is the 3D v-cache mod.

In gaming no, it's not that hot, my 7950X3D is at max 70C under 360AIO, with some short higher peaks when loading stuff

It goes above 80C only on full core loads like Cinebench

[pepsi_man004]

56 minutes ago, Agall said:

Redditors don't understand basic thermodynamics.

 

The 3D v-cache mod involves shaving down the die to then add the 3D v-cache 64MB on top of the center part of the die. This also involves adding silicon spacers to get the right z-height for the cores. Adding heat transfer layers will cause a raise in heat source temperature with the rest of the variables controlled.

 

For 7000x3D, its about +20C compared to regular Ryzen 7000 in most standard scenarios. This is a value I determined through multiple samples of 7950x3D's which have both a non 3D and 3D v-cache CCD in the same operating environment, where the difference in per core temps at the same wattage draw between the CCDs was about 20C.

 

I would even say 75C is too low and would indicate that you're not getting full performance somehow (or you're direct-die cooling), whether that's a very aggressive undervolt or you're limiting the max temp. A 7800x3D under all core loading should get to 80-85C at an all core boost to 4.8-4.9GHz.

I dont play max settings so i am probably not getting high temps due to that. I don't overclock, so that definitely is out the window for me.

 

Thanks for explaining how the CPU works to me!

 

I have one more question, would you recommend a MSI GPU or a Gigaybyte GPU. I currently have the MSI Gaming Trio X 4080 Super and the Gigabyte Gaming OC 4080 Super. The reason I have 2 is due to the fact I had coil whine on my Gigabyte and thought I would sell it and buy an MSI GPU,  bad mistake though as the MSI has coil whine too.

[Agall]

56 minutes ago, PDifolco said:

In gaming no, it's not that hot, my 7950X3D is at max 70C under 360AIO, with some short higher peaks when loading stuff

It goes above 80C only on full core loads like Cinebench

Max 70C sounds like you're also not pushing it. That's where PBO2 tuning to force it to run at 5.25GHz as often as possible will have it reach the thermal limit, even while gaming.

 

40 minutes ago, joe_ollie909 said:

I dont play max settings so i am probably not getting high temps due to that. I don't overclock, so that definitely is out the window for me.

 

Thanks for explaining how the CPU works to me!

 

I have one more question, would you recommend a MSI GPU or a Gigaybyte GPU. I currently have the MSI Gaming Trio X 4080 Super and the Gigabyte Gaming OC 4080 Super. The reason I have 2 is due to the fact I had coil whine on my Gigabyte and thought I would sell it and buy an MSI GPU,  bad mistake though as the MSI has coil whine too.

I don't think it really matters between the two, they both overbuild the card to handle max wattages, so which AIB you go with doesn't matter like it used to. If the Gigabyte card came with their anti-sag bracket that bolts it into the motherboard, then I'd use that card for that feature alone.

[PDifolco]

21 minutes ago, Agall said:

Max 70C sounds like you're also not pushing it. That's where PBO2 tuning to force it to run at 5.25GHz as often as possible will have it reach the thermal limit, even while gaming.

 

I don't think it really matters between the two, they both overbuild the card to handle max wattages, so which AIB you go with doesn't matter like it used to. If the Gigabyte card came with their anti-sag bracket that bolts it into the motherboard, then I'd use that card for that feature alone.

Yeah... but with latest BIOS I can't even undervolt by -10 without not posting or crashing at Windows boot

Blame Asus not me !!

Can try OC only maybe, not sure it'll give much

 

[Agall]

2 minutes ago, PDifolco said:

Yeah... but with latest BIOS I can't even undervolt by -10 without not posting or crashing at Windows boot

Blame Asus not me !!

Can try OC only maybe, not sure it'll give much

I jumped ships anyways, desktop parts are just too boring now again. I reached peak desktop with my previous setup and then said, "okay, now what".

 

Its a phase that comes and goes every 4 years for me, historically speaking  I think the handheld and eGPU setup is here to stay this time, its just so good.

[DreamCat04]

20 hours ago, Agall said:

I jumped ships anyways, desktop parts are just too boring now again. I reached peak desktop with my previous setup and then said, "okay, now what".

 

Its a phase that comes and goes every 4 years for me, historically speaking  I think the handheld and eGPU setup is here to stay this time, its just so good.

Same. OCing my 12700K only really increases its power draw and doesn't really increase performance much further. What handheld + eGPU setup are you rocking? I have an ROG Ally but no eGPU since the XG mobile GPUs are way too expensive and I don't need one since I have a PC with a 4070 Ti anyway

[freeagent]

23 hours ago, Agall said:

+20C insulator that is the 3D v-cache mod.

That is totally not true lol. I have an X3D part and it runs super cool. Many other X3D owners report the same findings.

 

My X3D barely touches 60 in game, and it is capable of pulling the full 143w at under 80c.

[DeYReX]

23 minutes ago, freeagent said:

That is totally not true lol. I have an X3D part and it runs super cool. Many other X3D owners report the same findings.

 

My X3D barely touches 60 in game, and it is capable of pulling the full 143w at under 80c.

So what are you doing guys to have stable tems and good performance in the x3ds? Undervolts or what is the best choice to do when you buy a x3d?

[freeagent]

7 minutes ago, DeYReX said:

So what are you doing guys to have stable tems and good performance in the x3ds? Undervolts or what is the best choice to do when you buy a x3d?

Not sure, I spread my TIM thin, I use the curve, but with stock power limits.

 

My 5900X sees temps in the 70s when in game, but it is usually at around 200w. I am running it at 260/170/200 with a curve and +200 override.

[Agall]

On 10/26/2024 at 8:24 AM, freeagent said:

That is totally not true lol. I have an X3D part and it runs super cool. Many other X3D owners report the same findings.

 

My X3D barely touches 60 in game, and it is capable of pulling the full 143w at under 80c.

I'm not really sure what your intent is here, but an understanding of thermodynamics doesn't appear to be a part of it. I guess read my next post below that where I go into more detail.

 

On 10/26/2024 at 8:48 AM, DeYReX said:

So what are you doing guys to have stable tems and good performance in the x3ds? Undervolts or what is the best choice to do when you buy a x3d?

The performance is stable, the part just simply runs hotter than non 3D. Its the result of adding two heat transfer layers between the heat source and heatsink. If you give a 7800x3D an acceptable air cooler, like a PA120SE, it'll reach 85C occasionally which is perfectly fine.

 

A common way people will 'fix' the temperatures of 3D v-cache parts is by undervolting them to the point where they lose performance. You can get a decent undervolt that doesn't do this, but it'll still run hot if you're pushing the chip.

 

This might not even be a problem for 9000x3D since there's rumors that AMD figured out how to put the 3D v-cache below the CCD and not on top, entirely eliminating the major downside to 3D v-cache.

[freeagent]

Dude, I have an X3D part, it is as easy to cool as my 5600X.

 

The heat does not come from gluing more cache on, the heat comes from the silicon quality.

 

Shit silicon shit temps, and shit boosting, shit undervolting, just shit.

 

2 hours ago, Agall said:

A common way people will 'fix' the temperatures of 3D v-cache parts is by undervolting them to the point where they lose performance. You can get a decent undervolt that doesn't do this, but it'll still run hot if you're pushing the chip.

You aren't supposed to touch vcore at all, just use the curve. Once you start adding negative offsets to vcore, you will lose performance.

[Agall]

14 minutes ago, freeagent said:

Dude, I have an X3D part, it is as easy to cool as my 5600X.

 

The heat does not come from gluing more cache on, the heat comes from the silicon quality.

 

Shit silicon shit temps, and shit boosting, shit undervolting, just shit.

 

You aren't supposed to touch vcore at all, just use the curve. Once you start adding negative offsets to vcore, you will lose performance.

Buddy, I've had both a 5800x3D and 7950x3D, including delidding and direct-die cooling the 7950x3D. 

 

You can gladly touch Vcore, you just need to run the chip cool enough to take advantage of it.

 

If you want a lot of the data I've posted, I've dumped it here, including post direct-die configuration and temperatures. I got the 7950x3D to nearly match a 7950x at only 155W draw in R23.

 

[freeagent]

I just saw R23 in the link, try something like Linpack, measure GFlops.

[ShuFlngPu]

On 10/25/2024 at 7:40 AM, joe_ollie909 said:

Hi!

 

I have just built a new PC which my parts are:

 

AMD 7800X3D

RTX 4080 SUPER

Deepcool AK620 Cooler

 

I was just wondering if my CPU temps while gaming are fine? Or are they too high?

 

I currently average 65-70c when gaming with a max of 75c!

 

Thanks!

65w TDP CPUs should sit around 75c on average -Most AM4. (My AM4 5800x3d with FANS sits at 70-75c on heavy gaming.)
120w TDP should sit around 85c with fans though, nobody is usually crazy enough to do this and use liquid cooling.

AIO temps should be roughly 50-60c and 65-75c respectively. Everyones rig/setup is differnt so take these as 'soft' numbers. Personally, anything under 80c with fans is fine by me but it depends on the GPU.

X3d chips per AMD: "Optimal temp 75c" The 3d cache can hit some lag based on other pages ive read at or about 90c but AMD says the 3d cache is ok at 95c.
I personally notice stutter sometimes over ~85c.


I aim for 75c on AMD CPUs as, AMD suggests 75c as "Optimal" temperature for CPU operation though, this was on AM4 socket. Still researching my current AM5 builds technicalities.

In summary; Well built fella. Youve got literally perfect temps. Well done!