I’ve seen some people recommend disabling C-States to reduce latency or avoid performance dips — especially for gaming or overclocking. But I’ve also come across claims that AMD’s Boost algorithm relies on C-States being enabled, and that turning them off might actually harm performance.
For example, in this video: https://youtu.be/Rpg8Gc2X_P4?si=5n2WFv0HjuAb_X1Y, the creator suspects that disabling the C-States may have been the cause of random stutters in games. It’s not a detailed technical explanation, but it adds to the uncertainty. Worth checking out if you’re on the fence like me.
I’m currently running a Ryzen 7 9800X3D, and I’ve been going back and forth on this for weeks (Currently with it on). Some people say disabling C-States improves 1% lows and system responsiveness, while others say it can break Boost behavior or cause worse overall performance — especially with newer Ryzen chips.
If anyone has tested this or understands more about how C-States affect Boost and stability on Zen 5 or 3D V-Cache CPUs, I’d love to hear your input.
I’m not 100% sure about this info btw
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one explanation i can think of is thermal headroom. if cstates is enabled it will downclock unused/inactive cores hence they will not generate heat giving the preferred/active cores enough thermal headroom to boost.