DDR5 Speed vs Latency: 6000 CL30 vs 8000
DDR5-8000's 33% bandwidth edge over DDR5-6000 CL30 only pays off when the platform runs its memory controller in a native gear-2 mode — which Intel Arrow Lake does and AMD Zen 5 resists, so the slower, cheaper kit wins on AM5 and the faster kit wins on LGA1851.