Which runs hotter 5800X3D or 5900X?

[Kitsan]

I have a 5900X currently in my ITX build but i'm thinking about moving to a 5800X3D as I only use it for gaming.

 

I have read that 5800X3D gets hotter than a 5800X, but I was wondering if it got hotter than a 5900X due to the V Cache causing slower heat dissipation?

 

Feels like a bit of a sideward step otherwise.

 

 

[PDifolco]

2 minutes ago, Kitsan said:

I have a 5900X currently in my ITX build but i'm thinking about moving to a 5800X3D as I only use it for gaming.

 

I have read that 5800X3D gets hotter than a 5800X, but I was wondering if it got hotter than a 5900X due to the V Cache causing slower heat dissipation?

 

Feels like a bit of a sideward step otherwise.

 

 

Yes

Already the 5800X and 5800X3D are 1 CCD  8 cores vs 2x 6 cores CCD (dies) on a 5900X, so heat is more concentrated and harder to cool

And the the VCache adds some heat 

[Origami Cactus]

It puts out less heat (lower TDP), but the silicon itself runs hotter, as it has an extra barrier of vcache between the heatspreader and cpu cores, and on the 5900x the cores are spaced over 2 CCX dies, so they are more spread out, causing better heat dissipation.

 

BUT the chip itself running hotter is completely meaningless, it doesn't reduce lifespan, it doesn't heat up other components more, as the heat output itself is lower, so idk why you would even be worried about that. The cpu cores themselves running hotter is completely meaningless, like actually it won't make any difference in your usage of the computer. So I actually can't understand why you would put ANY weight to the cpu core temp when debating between these 2 cpus. Higher core temp doesn't mean higher heat output! It won't heat up your room more etc etc.

It just makes no sense to me. Look at the gaming performance instead.

[Kitsan]

I mean I literally typed that I know it runs hotter due to the v cache, I was asking if it was hotter than 5900X.

 

In an ITX build its harder to keep the peak temperature down, it leads to fans spinning up and down or setting a higher base RPM for them to run at constantly.

 

Not sure why you're so aggressively questioning me, I think you should log off for a while.

[freeagent]

X3D is easier to cool than 5900X.

[xg32]

26 minutes ago, Kitsan said:

I have a 5900X currently in my ITX build but i'm thinking about moving to a 5800X3D as I only use it for gaming.

 

I have read that 5800X3D gets hotter than a 5800X, but I was wondering if it got hotter than a 5900X due to the V Cache causing slower heat dissipation?

 

Feels like a bit of a sideward step otherwise.

 

 

the 5800x3d draws about 105-125w while the 5900x draws 175w, even though it's more dense it still runs cooler than the 5900x

 

the 3d is also alot faster in gaming