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Reading the review from PCGH, I found out why the X3D beats the Zen 4 in several games: It's the GPU limit. Zen 4 bounces off of it, while the large cache of the X3D allows it to dig a bit deeper into the limit.

In other words, Ampere and Navi 2x are too weak to unleash the power of Zen 4 even just in 720p

Captain_Yuri said:

Crazy how we went from 5600X which was as power efficient as a quad core 3300X to 7600X which requires almost as much power as 16 core 32 thread 5950x. While I am sure raptor lake will be even more nuts in terms of power, efficiency is clearly no longer a priority for any of these companies on desktop. I am looking forward to the laptop comparisons however since that is where we will see the biggest gains in performance per watt.

Keep in mind that they have a different TDP setting. If you set the TDP of the 7600X to 65W it will lose a bit of performance but consume also just about as much as the 5600X while having much more performance.

That being said, AMD should really have released a Ryzen 5 who comes with a TDP of 65W out of the box. Just releasing an uprated 105W variant (and that goes for all the Zen 4 chips so far) makes them look very inefficient.