Ryzen 3100X on B550 AORUS PRO - 5.2GHz + C14 DDR4 4800 vs C12 3733

[Gouhan]

As the title says. This was/is for upcoming review.
Anyway, was surprised that C14 4800 despite the IF issues, still ends up faster than C12 3733 with 1:1 FCLK/UCLK. (This is obvious when looking at absolute latency on it's own where 3733 C12 is aroud 6.4ns, compared to 5.8ns for the 4800 clock) I thought the IF frequency would still be too much to overcome with 1,200MHz for the 4800 MT/s clock vs 1,866MHZ for 3733MT/s clock

either way GeekBench shows it best as you need only look at the memory performance score below.

B550 AORUS PRO is stupid easy to OC, it's a zero effort exercise, with the hardest part being maybe pressing the power button.

First up, C12-11-11-24-1T @ 3733MT/s didn't tune secondary or tertiary much short of tCKE-1, Trc 40 & SCLs 3

Next is C14-14-14-24-1T @ 4800MT/s same as above for everything else.

This setting is just faster and I'll be benching this one going forward. Would be interesting to see what Ryzen 4000 can do with B-die as well on this board.

 

[ZOMBY]

@pXius yummy

 

[Sandrain]

As the title says. This was/is for upcoming review.
Anyway, was surprised that C14 4800 despite the IF issues, still ends up faster than C12 3733 with 1:1 FCLK/UCLK. (This is obvious when looking at absolute latency on it's own where 3733 C12 is aroud 6.4ns, compared to 5.8ns for the 4800 clock) I thought the IF frequency would still be too much to overcome with 1,200MHz for the 4800 MT/s clock vs 1,866MHZ for 3733MT/s clock

either way GeekBench shows it best as you need only look at the memory performance score below.

B550 AORUS PRO is stupid easy to OC, it's a zero effort exercise, with the hardest part being maybe pressing the power button.

First up, C12-11-11-24-1T @ 3733MT/s didn't tune secondary or tertiary much short of tCKE-1, Trc 40 & SCLs 3


Next is C14-14-14-24-1T @ 4800MT/s same as above for everything else.
This setting is just faster and I'll be benching this one going forward. Would be interesting to see what Ryzen 4000 can do with B-die as well on this board.

I know this post is old, but would be interesting to know what ram voltages applied to those CLs.

 

[Gouhan]

I know this post is old, but would be interesting to know what ram voltages applied to those CLs.

I think it was standard XOC voltages so probably 1.9v or so. Can't remember off hand but I'll know again soon enough