AMD Ryzen 9 7950X Boosts to 5.85 GHz Only if You Can Keep it Under 50°C

[btarunr]

AMD's upcoming Ryzen 9 7950X 16-core processor can boost at speeds of up to 5.85 GHz, even though its maximum boost frequency in the specs is 5.70 GHz. The processor needs temperatures below 50°C to boost up to 5.85 GHz. Above these temperatures, it will only boost up to the 5.70 GHz on the tin. There are four frequencies to keep in mind about the 7950X. First is the base frequency, of 4.50 GHz. Next up, is the all-core boost frequency, of 5.10 GHz. This is the frequency at which the processor can run all 16 of its cores, provided it stays away from the 95°C temperature throttle. 5.70 GHz is the maximum boost frequency you'll get on "some" of the cores if the temperature is maintained between 50-95°C. If you're able to keep temperature below 50°C, the processor can boost up to 5.85 GHz. AMD refers to 5.85 GHz as the "peak clock."

To be able to hit peak clocks, you should ideally need some serious cooling, such as a 360 mm DIY liquid cooling setup, or a 420 mm AIO CLC; however in some circumstances, such as the system starting up from a cold-boot in a room with low ambient temperatures, the processor should hit peak clocks as it's approaching the 50°C-mark. AMD is making no pretenses that the 7950X is a high-power chip. Its TDP is rated at 170 W, and its PPT (package power tracking) limit at 230 W. By setting the TDP at 170 W from the get go, AMD is hinting that one can forget about aftermarket tower-type air-cooling, and head straight to AIO liquid cooling.



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[TheinsanegamerN]

AIO isnt going to do it either, if these things peak temp like the 5000 series nothing short of LN2 or similar exotic options are gotta cut the mustard.

 

[Denver]

That statement doesn't make sense... High-end CPUs run hot under high load.

But I suppose that when it comes to boosting on single core load, it might be feasible to keep it close to that temperature.

 

[ir_cow]

"if" you can. Basically the LN2 guys only.

 

[R0H1T]

Or you could disable 15 cores & try your luck?

 

[Crackong]

I don't see why this could be a separated topic since Intel has the same limitation called TVB and it is not a "New thing" or what.

 

[mama]

Lucky I'm prepping for a custom water loop then...

 

[natr0n]

nice

 

[beedoo]

Hmmmm, I hope this generation isn't a disappointment - waiting eagerly to upgrade my 2950X Threadripper with a completely new build.

 

[bobsled]

Hmmmm, I hope this generation isn't a disappointment - waiting eagerly to upgrade my 2950X Threadripper with a completely new build.

I’m contemplating the same move. The IPC and single core uplift should be significant.

 

[Sabotaged_Enigma]

That extra 0.15 GHz doesn't make much difference anyway.

 

[Steevo]

So liquid cooling that I’m familiar with. 10+ years if the same pump and radiator.

 

[R0H1T]

That extra 0.15 GHz doesn't make much difference anyway.

It does to Intel

Intel Core i9-13900KS Could be World's First 6 GHz Processor

With Intel's 13th Gen Core "Raptor Lake" facing stiff competition from AMD's Ryzen 7000 series, and the "Zen 4" series being augmented with 7000X3D series in early-2023, it's becoming a foregone conclusion that Intel will launch a possible "Core i9-13900KS" SKU, which is on its way to being the...

www.techpowerup.com

 

[1d10t]

The processor needs temperatures below 50°C to boost

Lol bye, my 5600 struggle to keep it below 70°C.

 

[Kohl Baas]

Lucky I'm prepping for a custom water loop then...

Hope you have an AC and a HUGE rad, cause you'll need like 25°C max water temp to keep the CPU under 50°C... Water-to-Core delta is about 25°C under load even with a decent block.

Guess a MO-RA or two will do the trick quietly in a 20°C room...

 

[Sabotaged_Enigma]

It does to Intel

Intel Core i9-13900KS Could be World's First 6 GHz Processor

With Intel's 13th Gen Core "Raptor Lake" facing stiff competition from AMD's Ryzen 7000 series, and the "Zen 4" series being augmented with 7000X3D series in early-2023, it's becoming a foregone conclusion that Intel will launch a possible "Core i9-13900KS" SKU, which is on its way to being the...

www.techpowerup.com

And in that post I have accused Intel for being desperate and the competition going the wrong way.
Simply hopeless.

 

[ymdhis]

Lol bye, my 5600 struggle to keep it below 70°C.

My 5600 never goes above 62C, with air cooling. Configure that thing properly.

 

[nguyen]

"if" you can. Basically the LN2 guys only.

Use TEC and disable 10 cores to keep power consumption down .
6c/12t with a bunch of cache is plenty for games anyways.

 

[Bwaze]

Even Zen 3 is notoriously hard to cool well wirh custom water cooling. But the worst heat source is multithreaded load - if you only load one thread, it's not so bad, and we're talking about single core boost. So there is a hope.

Not that it matters. Ryzen processors don't actually perform any task at boost frequency, no matter how light and how synthetic it is, and how cold they are.

 

[AusWolf]

I don't need a 16-core CPU, but I'm tempted to try the 7950X with my 280 mm be quiet AIO which is the best cooler I've ever had, just for the heck of it.

 

[taka]

My 5600 never goes above 62C, with air cooling. Configure that thing properly.

Can you please tell me what cooler you use and if you undervolt ot not?

Thanks!

 

[Dirt Chip]

Haevy OC, havt tax.
Only in the cooler parts of the globe\AC max all the time will users be able to reach the 50 number without LN2

 

[Deleted member 185088]

Lol bye, my 5600 struggle to keep it below 70°C.

Same here, 5900x jumps to 50c when doing basic things.

 

[Bwaze]

My 5900X also jumps over 50 with the lightest loads, on a custom water cooling with D5 pump, 2x 280mm + 1x 360mm radiators.

 

[taka]

There are some design limitations caused by CPU die not centered and also the die size. This is the main reason the Ryzen cpu's have thermal issues. Another reason can be heat transfer from cooler-lid-die.
But if the same with AIO or coostom loop, look's like the main issue is die-lid.
My 5600x no PBO enabled no undervolt with a cheap cooler (ID Cooling SE-224XT) 35 idle and 72 with cpu burn.