Question Any solid info yet on AM6 ?

[axlrose]

I need to put together a new build with support for my CPU and my GPU ending. I'll need to save up for a year or two. It would be nice to get in at the start of AM6 rather than the end of AM5. Is there anything other than speculation yet?

Thanks.

 

[USAFRet]

Is there anything other than speculation yet?

No.

Buying in a year or two....look at that time.

 

[kerberos_20]

nobody knows when it will appear, but whats known that am6 will stand for DDR6, nobody knows if we will be still using DIMM slots, its possible that switch to CUDIMM will happen already

DDR6 ís expected to appear next year in servers, CPU makers will start switching once price point will start to make sense (for consumers)

 

[dwd999]

I thought we're supposed to be switching to CAMM2 DDR5 modules as the next big thing:

https://www.tomshardware.com/pc-com...dr5-10000-speeds-on-modified-asus-motherboard

 

[Aeacus]

I thought we're supposed to be switching to CAMM2 DDR5 modules as the next big thing:

https://www.tomshardware.com/pc-com...dr5-10000-speeds-on-modified-asus-motherboard

From time-to-time MoBo manufacturers do try new features to see if any of them stick.

In 2023, Intel pushed 12VO and there were one or two such MoBos,
article: https://www.tomshardware.com/pc-com...new-standard-will-reduce-pc-cabling-and-costs

But now, 2 years later, most MoBos are still using the standard 24-pin ATX and PSUs output all three rails, not just +12V.

Way back in time, 2014, SATA Express was also tried, but it too died out soon. (My MoBo from 2016 has two SATAe ports as a dead weight.)
Further reading: https://en.wikipedia.org/wiki/SATA_Express

Is there anything other than speculation yet?

Maybe in 2027, maybe in 2030, who knows.

If to look how long AM4 lasted, from 2017 to 2022 (or 2025 if you include latest Ryzen 5000 CPU releases, like 5500X3D) then AM5 would stick around for at least 5 years, if not 8 years.
AM5 started out Q3 2022. So, for the earliest, AM6 may come in 2027. Or latest, in 2030.

 

[axlrose]

What is cudimm?? Sounds like something to follow if I can make a new build in 2027.

 

[kerberos_20]

I thought we're supposed to be switching to CAMM2 DDR5 modules as the next big thing:

https://www.tomshardware.com/pc-com...dr5-10000-speeds-on-modified-asus-motherboard

camm2 takes too much space for amount of ram it gives...can be handy on thin devices, cudimm seems to be beter candidate on desktops

 

[kerberos_20]

What is cudimm?? Sounds like something to follow if I can make a new build in 2027.

its still a dimm (udimm) with an extra clock driver to improve signal integrity at higher clocks
they are compatible with existing udimm mainboards
new cpu would probably be needed to take advantage of higher clocks

 

[Eximo]

What is cudimm?? Sounds like something to follow if I can make a new build in 2027.

Clock Unbuffered (normal memory would be UDIMM, for just unbuffered, vs buffered and/or ECC memory).

Instead of getting its clock from the memory controller, it has a second clock chip on board the memory. It allows for much higher speeds, like 8000+(10,000+ has been shown off), but increases latency even further. You might recall the Gear 1 vs Gear 2 conundrum, this is the same thing except the clock is external, not just decoupled.

Intel Arrow Lake supports it now, and you can install it on AMD, but the higher speeds are not available, is my understanding.

 

[Aeacus]

What is cudimm??

To add to the above, CUDIMM RAM is essentially 6800 MT/s and faster/higher than that.
Further reading: https://www.techpowerup.com/review/cudimm-memory-ddr5-explained-performance-benchmark/2.html

Current Zen 5 (Ryzen 9000) doesn't support CUDIMM RAM, but CUDIMM RAM can work in bypass mode.

 

[thestryker]

It allows for much higher speeds, like 8000+(10,000+ has been shown off), but increases latency even further.

There's no measurable latency difference between using the CKD and not.

What is cudimm?? Sounds like something to follow if I can make a new build in 2027.

It mostly sounds like what you'll want to do is wait and see what memory support for Zen 6 looks like (AMD is generally on a 2 year architecture cycle Sept 2022 was Zen 4 and Aug 2024 was Zen 5 so expect it 2026 sometime). Intel already supports CUDIMMs with ARL and everything forthcoming from them will as well. Up to ~DDR5-8000 UDIMMs seem mostly fine for daily operation, but once you start going above that CUDIMMs just make it more consistent.