Yes, you can get dual channel RAM sticks from the same manufacturer with varying speeds.
Yes, you can get dual channel RAM sticks from the same manufacturer with varying speeds.
For your setup, you're weighing options based on availability and performance. Consider upgrading to a 3200MHz stick since it's in stock and compatible. Downclocking to 3000MHz might still work but could limit future upgrades. If international supply is uncertain, replacing with a new 16GB dual-channel kit might be more reliable.
I’d purchase two units to complete it, but the next time you’re ready, costs might be too steep if anything causes both parts to slow down.
They should function, though as noted they will remain at 3000 regardless of the second sticks speed. Deciding whether to sell or buy depends on potential selling prices versus purchase costs. Clearly, 16GB of RAM with higher speeds offers more value than a mere 200MHz boost.
Ensure BIOS is current for optimal performance. Running on 2x8GB at 3600MHz CL18 and 2x8GB at 2133MHz CL14 at 2666MHz CL18 with all sticks works perfectly. No issues noticed with downclocking one stick to 3000MHz while maintaining consistent CAS latency.
They need to operate at the maximum speed both units allow, which is 3000 MHz. That means the 3200 MHz model won’t run at full capacity. You might try pushing both overclocked to 3200, though. Your key idea was that the CPU memory controller can't handle varying speeds for each stick—it will apply the same rate to all. As some have noted, this could lead to compatibility problems. It may default back to the base speed (like 2666 MHz), but generally it should function properly.