Is DDR5-8000 Worth It? The Ryzen AM5 Test

[mdenigma]

I use my 5600@Stock without EXPO. The performance difference is a 1-Digit-Number for my 7800X3D and the IO-Die uses half the energy. What about the energy consumption when using 2:1 ratio and lower clocks?

 

[yannus]

Well give it a few years, you’ll be more direct in the future too.

I'm not entitled. Techspot doesn't owe us anything. Education is not negotiable.

 

[Vanderlinde]

What voltage does it run at? Ryzen 9x series is rumored to be sensitive to ram running over the recommended 1.2v. I see some kits are listed as high as 1.4v which is a huge "no-no" for the longevity of your cpu

What? Ram voltage is independent of the IMC voltage.

Even if you run at 1.75V it won't affect your IMC.

 

[riev90]

What voltage does it run at? Ryzen 9x series is rumored to be sensitive to ram running over the recommended 1.2v. I see some kits are listed as high as 1.4v which is a huge "no-no" for the longevity of your cpu

That's false information.
I have had 1 sample of Ryzen 9800X3D and it has no problem running the ram at 8000 CL 34 at 1.54v for both VDD and VDDQ.

The VDDIO, though, which fed the IMC required 1.45v while the SoC Voltage only needed 1.22v.

I had the CPU for 3 months, using it for gaming with RTX 3080.
After finished submitting benchmark at HWBot, I sold the cpu to my friend.
Up until now, there is no single fuss about longevity on that CPU.

Some of my friends also have Ryzen 9600X, 9700X, 9800X3D and they have no trouble (both in terms of stability, ease-ness) running the processor on 1:1 and or 1:2 divider with voltage exceeds 1.45v.

 

[Squid Surprise]

That's false information.
I have had 1 sample of Ryzen 9800X3D and it has no problem running the ram at 8000 CL 34 at 1.54v for both VDD and VDDQ.

The VDDIO, though, which fed the IMC required 1.45v while the SoC Voltage only needed 1.22v.

I had the CPU for 3 months, using it for gaming with RTX 3080.
After finished submitting benchmark at HWBot, I sold the cpu to my friend.
Up until now, there is no single fuss about longevity on that CPU.

Some of my friends also have Ryzen 9600X, 9700X, 9800X3D and they have no trouble (both in terms of stability, ease-ness) running the processor on 1:1 and or 1:2 divider with voltage exceeds 1.45v.

Longevity means more than a few months… and since the 9000 series hasn’t been out that long, no one will really know the truth for many more months (or even years) to come.

 

[Eldrach]

Increasing the voltage will put a strain on the IMC - I guess it will be dependent on motherboard quality. But a «bad» chipset not able to cope with the «over the normal» voltage and cause system instability. Which might not affect your cpu..or, maybe it will. Been reports about Asrock motherboards frying the cpu - nothing confirmed, but something to think about

 

[Fastturtle]

I'm another of those who don't give a rat's maze about benchmarks. Does my ram operatae without blue screening or failing to boot? If it does and fits my needs, then I'll simply run it at the JDEC Specified speed of 2133. That's right, none of my ram is over clocked and I don't see any reason to purchase faster as what I need is higher capacity. Currently using 192GB and that's after having a pair that went bad.

Seriously, my use case for a system has nothing to do with benchmarks. Now if I was pushing Ai or some other high cpu load, then I'd be interested in performance but I'm not.