Cumulative Ryzen 5000 series TPU review discussion thread

[8BitZ80]

Can someone tell me if there is an Infinity link between the two CCD's or not ?
If not then there is still a bottleneck for the damn IO die causing slow downs still from spill over from CCD to CCD communication.

Going by this slide, it looks like all the CCX-to-CCX communication has to go through the I/O die.

I'm not sure why AMD implied there is a direct CCX-to-CCX infinity link in the memory overclocking slide with that triangle thing?? I guess that was supposed to be referring to a synchronised FCLK across all chiplets or something.

EDIT: Apparently the 5900X has one fully-enabled 8 core CCX, plus a second CCX with four of the cores disabled.

A single CCD, with one eight-core CCX and one four-core CCX, now lives underneath the hood of the Ryzen 9 5900X. This is configured with four of the cores of the second CCD disabled in the Ryzen 9 5900X, and this new approach of centralizing eight cores at a time, rather than just four, helps the processor lead the pack in lightly threaded games like Counter-Strike and League of Legends. - PCMag Australia

 

[thesmokingman]

Can someone tell me if there is an Infinity link between the two CCD's or not ?
If not then there is still a bottleneck for the damn IO die causing slow downs still from spill over from CCD to CCD communication.

Ofc there is. Seems a refresher is needed here.

On Zen 2 we have many CCX combined that make up a CCD. Each CCD connects to the IOD. Connecting to the IOD didn't change. What changed are the CCX arrangement. There is now only a single 8 core max CCX inside each CCD, which then connects to said IOD. The improvement is in the inter-CCX latency since there is now only one CCX all eight cores yoou don't get that latency penalty between individual CCX's within a CCD.

Zen 2 CCX make up is 4 core per CCX. And threads would/could jump between CCX causing latency penalties. Thus with a single 8 core CCX most thread situations would fit inside a single CCD or 8 core CCX. And as mentioned above, the 5900x maintains this with its maxed 8 + 4 arrangement.

 

[Taraquin]

where?

Look at the clockspeed/overclockingsection on the review, find the ram speed/timings screenshot. All Zen 2 I can find run tRC 48, all Zen 3 run 73. That alone can impact a couple of percent. This makes me wonder what the other timings are.

5600X:

https://tpucdn.com/review/amd-ryzen-5-5600x/images/overclocking-2.jpg

3600:

https://tpucdn.com/review/amd-ryzen-5-3600/images/overclocking-2.jpg

W1zzard: Maybe you can shed some light on this?

 

[W1zzard]

Can someone tell me if there is an Infinity link between the two CCD's or not ?
If not then there is still a bottleneck for the damn IO die causing slow downs still from spill over from CCD to CCD communication.

There is no direct IF link between CCDs. Everything has to go through the IO die

 

[Taraquin]

yes please tell us where you got this info. the only person I know capable of these timings is @1usmus and his calculator is not updated yet. also buildzoid knows a lot about ram, but those are only two i know of.

Look at for instance the 3600 and 5600X reviews, look at clockspeed/OC and check the ram speed/timings screenshot. tRC is 25 higher on the 5600X, 5800X and 5900X review vs Ryzen 3600 and 3700X. Seems 3600XT has the slower tRC as well. New ram modules with different XMP-settings perhaps?

 

[TumbleGeorge]

Is will at least some 5900 be able to be unlocked to 5950? I fantasize that there may be perfectly suitable cores that are locked only because of the price difference.

 

[W1zzard]

am i on to something here?

Does anyone know another site who tested at GPU limited? 1440p+ with Ultra

But not much to see here

 

[Taraquin]

am i on to something here?

Does anyone know another site who tested at GPU limited? 1440p+ with Ultra

But not much to see here

It seems like Ampere has problems at lower resolutions and scales poor the lower the res. 4k is superb, but I have seen several reviews where a 2080ti beat some of the Ampere-lineup at 1080 or lower res in certain games, but that never happends at 4k.

 

[DemonicRyzen666]

There is no direct IF link between CCDs. Everything has to go through the IO die

Thanks
Hey can you post what settings are used on the graphics.
Most of the graphs just say average fps.
in a few other reviews like the "3rd gen Threadripper deep dive" it was listed and it's hard to compare with anything out it.

 

[R0H1T]

Is will at least some 5900 be able to be unlocked to 5950?

Those days are long gone, unlocking cores died with Zosma although unlocking GPU is still a thing for Radeons.

 

[W1zzard]

Hey can you post what settings are used on the graphics.

Ultra, but using custom scene, not the integrated benchmark

Hmmm. Looks like if you play the integrated benchmark and not the actual game, then Ryzen has a better lead

 

[SL2]

I found this interesting.

AMD Robert Hallock promises Ryzen 5000 undervolting with new functionality - VideoCardz.com

AMD Director of Technical Marketing – Robert Hallock – provided more details on Ryzen 5000 series compatibility, upcoming features, and upgrade opportunities for users with AMD 500 series motherboards. AMD lifts the curtain on Ryzen 5000 series Yesterday AMD released its Ryzen 5000 series...

videocardz.com

 

[sepheronx]

Wow, that GN review really puts that 5600X into quite a strong lead in gaming.

This really is a solid CPU.

 

[MaurizioC]

from techpowerup's reviews the 5000x series seems hotter than the 3000x series. I see higher temperatures

 

[TheLostSwede]

I found this interesting.

AMD Robert Hallock promises Ryzen 5000 undervolting with new functionality - VideoCardz.com

AMD Director of Technical Marketing – Robert Hallock – provided more details on Ryzen 5000 series compatibility, upcoming features, and upgrade opportunities for users with AMD 500 series motherboards. AMD lifts the curtain on Ryzen 5000 series Yesterday AMD released its Ryzen 5000 series...

videocardz.com

See how AMD uses the term "sweet spot" there? It's about price/performance.

 

[W1zzard]

from techpowerup's reviews the 5000x series seems hotter than the 3000x series. I see higher temperatures

Any chance you looked at the (blue) OC numbers?

 

[8BitZ80]

Why are posts getting deleted in this thread?

 

[MaurizioC]

Any chance you looked at the (blue) OC numbers?

you are right at stock the 5600x is colder than 3600x but the 5800x is hotter than 3800xt... I wonder wheter amd will release a 65w 5700x

 

[W1zzard]

wheter amd will release a 65w 5700x

That would be my guess, too. It seems they want to keep the upgrade paths clear this time, so no changes in TDP or other hardware requirements

but the 5800x is hotter than 3800xt

2°C, which is almost nothing. These on-die sensors are not 100% accurate, and there are manufacturing variances, too

 

[SL2]

See how AMD uses the term "sweet spot" there? It's about price/performance.

I hesitated posting it, just to avoid more discussion about that. For the fifth time, my choice of words had nothing to do with AMD.
FYI, I'm already informed about that, see yesterdays posts. I'm not completely låsst.

 

[W1zzard]

Why are posts getting deleted in this thread?

This is the "TPU review discussion thread", not for GN

 

[TheLostSwede]

I hesitated posting it, just to avoid more discussion about that. For the fifth time, my choice of words had nothing to do with AMD.
FYI, I'm already informed about that, see yesterdays posts. I'm not completely låsst.

I know, just saying that it is how most people use that term, including AMD.
The rest we worked out already.
It's still not funny though...

Good catch otherwise, plenty interesting information there.

 

[8BitZ80]

This is the "TPU review discussion thread", not for GN

I'm okay with that, but please give a heads up next time. It just saves me looking for non-existent comments and thinking I'm going crazy. Ta.

 

[MaurizioC]

That would be my guess, too. It seems they want to keep the upgrade paths clear this time, so no changes in TDP or other hardware requirements


2°C, which is almost nothing. These on-die sensors are not 100% accurate, and there are manufacturing variances, too

the 5800x is way hotter than a 3700x, I would wait and see the 5700x.

My 3700x works fine and it did not became slower yesterday so no need to replace

 

[R0H1T]

you are right at stock the 5600x is colder than 3600x but the 5800x is hotter than 3800xt... I wonder wheter amd will release a 65w 5700x

Why is everyone so hung up on x700x it's a model number FFS! If the next gen (zen3) APUs will be on the same 5xxx naming scheme it's unlikely they'll be a 5700x, if you want a cheap upgrade just buy a 5800 non X when it's released. It's not like you're getting something different or inferior.