Checking motherboard and RAM compatibility is essential.
Checking motherboard and RAM compatibility is essential.
I'm a bit puzzled about the memory details on the board. You're planning to install two 32GB sticks at 6400mhz each. Are these speeds compatible with a motherboard that supports 1DPC 1R up to 7200+ MHz (OC), 4800 MHz natively, and similar options for 2DPC? It seems the listings are limited, which might indicate compatibility issues if you stick with just one stick. Please confirm your requirements!
That's the official support, they get that from testing and validation. But notice how a + is added to the end of the numbers, meaning that you could still technically get higher. There's not a guarantee that you can get those OC speeds in general though. If you don't get 6400 off the bat, you might need some tweaking.
Which motherboard are you examining? The claimed maximum speeds often don't fully reflect the capabilities of the board. From this selection, 6000 MHz should be achievable with 2x32GB RAM, but that precision remains a topic of discussion.
The system either exceeds its advertised RAM speed limits or simply can't meet them. This is illustrated by a motherboard that was rated for 2200 MHz DDR3 but ran at 3136 MHz on air with an i7-930, likely even higher with a better CPU. Such extreme cases are rare today. Modern boards like the Z790 Apex Encore support up to 8400 MHz, yet some users have pushed it beyond 8800 MHz—though that depends heavily on platform and CPU capabilities. Inconsistent DDR5 timings and chipset limitations often restrict performance. Without a dedicated golden chip at the lower end, achieving higher speeds becomes challenging. It’s best to rely on real-world OC results from other users for an accurate picture.
The edge will certainly outperform the Riptide, although most of ASRock's LGA 1700 boards tend to be cautious about memory speed limits except for the Nova. A 6400 should likely be the cap for that board with 2x32GB, though it might still function. The Edge, however, seems more confident about achievable speeds, even if modest.