AMD Ryzen 9 7950X

amazon AMD Ryzen 9 7950X reviews

We see some more details on the clock speeds of AMD’s fastest Zen 4 CPU – the 16-core Ryzen 9 7950X.

AMD Ryzen 9 7950X All-Core & Max Boost clock speed details, Cooling is the most important thing for Zen 4 overclocking & stock operation.

5.85 GHz fMax or peak frequency. The peak frequency for AMD’s Ryzen 9 7950X will be slightly higher than the 5.70 GHz boost clock. Both frequencies can only be applied to a single core at the warehouse but temperature plays a very important role here. We can see in most cases CPU will run at a 5.70GHz boost clock and only if you have a really good cooling solution you will be able to reach peak frequency.

Desktop CPU AMD Ryzen 9 7950X 16 Core “Zen 4”

AMD Ryzen 9 7950X retains the extremely powerful 16 cores and 32 threads from the previous two generations. The CPU will have an impressive base frequency of 4.5 GHz and boost clock up to 5.7 GHz (5.85 GHz F-Max), making it 200 MHz faster than Intel’s Alder Lake Core i9-12900KS has a boost frequency of up to 5.5 GHz on a single core.

It looks like AMD is extracting every ounce of Hertz it can in 170W TDP (230W PPT) for the Ryzen 9 chip. As for cache, the CPU comes with 80MB which includes 64MB from the L3 (32MB for each CCD) and 16 MB from L2 (1 MB per core). The flagship CPU 7950X will cost US$699, which means it will cost a bit more than the Core i9-12900K while providing a significant leap in performance in multithreaded applications like Chaos V-Ray up to +57% and do so with up to 47% higher Energy Efficiency.

AMD revealed that the Ryzen 9 7950X can only peak frequency up to 5.85 GHz if the temperature is below 50C and above 50C, you will get a boost clock of 5.70 GHz. Knowing how hot an AMD Ryzen 7000 CPU runs, 5.70 GH frequency is where 90% of the chip will be and only some custom loop configurations or those running a dual-sided AIO 420mm water cooler will have can achieve 5.85 GHz fMax peak clock at stock.

Base Clock 7950X – 4.50 GHz (Stock)

Boot Clock 7950X – 5.70 GHz (Stock)

Peak Clock 7950X – 5.85 GHz (Stock)

7950X All-Core Boost – 5.10 GHz (Stock)

But that is only the top of 1 core, we also know the maximum gain for all cores of the CPU, and is rated at 5.1 GHz. CPU frequency 5.1 GHz is the maximum frequency default all-core but again, the temperature is important. In cases where heavier loads can push temperatures high, the CPU will run slightly below the 5.1 GHz all-core limit. A more realistic all-core boost would be around 4.9-5.05 GHz (varies between the two CCDs. CCD0 runs at a slightly higher clock while CCD1 runs at a slightly lower clock speed).

To keep heat under control, especially within the limited TjMax 95C threshold, you will require a very good cooling-heat dissipation configuration. With overclocking, these temperatures are expected to increase, and while users have the option of tweaking performance using under volts or with CBP disabled (those are operations that are unavailable and reduce Performance as seen, there will be no higher ambient temperatures on the AM5 platform.

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