News AMD Unveils Three Ryzen 7000X3D V-Cache Chips, Three New 65W Non-X CPUs, Too

[alceryes]

Interesting that only one of the chiplets will have the V-cache and only the OTHER chiplet (without the V-cache) will hit the reported peak frequencies. That's how the new X3D chips will be able to stay under than standard (X varient's) TDP numbers.

So one CCD benefits from more cache, the other CCD benefits from higher clocks. Windows 11 thread director is gonna be like, "WTH is this?!"

 

[alceryes]

When you are gaming AMD says that the gaming load is going to be handled by the die with the V-cache. This means that even the 7950X3D, despite its advertised 5.7GHz boost is only going to run games at most at 5GHz (and that single-threaded). So there is not going to be a gaming performance difference between the 7950X3D and the 7800X3D. The advertised 5.7GHz on the 7950X will only be used in non-gaming workloads where the thread is going to executed on the die without the V-cache. And that assuming that AMD’s implementation of this asymmetric implementation won’t be buggy – which I doubt. Ah and the gaming benchmarks that they showed winning against the 13900K with double digit margins are mostly the few games where AMD was already winning.

I think there will be a performance increase between those two. Some games these days are starting to use more than 8 cores - even if it's just for a simple run, peak task. I also think that CCD0 on the 7950X3D will be binned higher than those on the 7800X3D, resulting in a slightly higher multi-core peak frequency.

Of course, nobody knows for sure yet, so stay tuned!

 

[TerryLaze]

Interesting that only one of the chiplets will have the V-cache and only the OTHER chiplet (without the V-cache) will hit the reported peak frequencies. That's how the new X3D chips will be able to stay under than standard (X varient's) TDP numbers.

So one CCD benefits from more cache, the other CCD benefits from higher clocks. Windows 11 thread director is gonna be like, "WTH is this?!"

You can't blame that on the vcache, all of their lineup does that.
TSMC's yields are so good that they match one good ccd with one not-so-good ccd.
https://www.techpowerup.com/review/amd-ryzen-9-7950x/26.html

In pure stock settings, we noticed that the boosting behavior of among the two CCDs is vastly different, with cores on the second CCD boosting anywhere between 100 to 250 MHz lower than their counterparts from the first CCD. This isn't a case of power budget running out and the processor spreading its boost budget lower on the second CCD, as our testing shows, where we applied a lightly-parallelized workload to specific cores in both CCDs, and noticed that even well within the power/thermal limits, the second CCD simply isn't boosting as high as the first one, including the cores AMD marked as "preferred cores" in that CCD. We've reproduced this CCD boosting disparity on even our 7900X sample. Older-gen 5000-series chips such as the 5950X don't exhibit this.

 

[alceryes]

Just spitball dreaming here, but wouldn't this be speatacular -

Ryzen 9 7990X3D

2x64MB X3D L3 cache. Each CCD has an extra 64MBs of cache. CCDs are binned for closer to non-X3D max boost clocks. Heck, as long as we're dreaming, let's throw in a better shielded/built Infinity Fabric interconnect for higher interconnect clocks and lower latecy. Great for games now and new game 5 years from now!

All this for the low, low price of $999

 

[helper800]

Just spitball dreaming here, but wouldn't this be speatacular -

Ryzen 9 7990X3D

2x64MB X3D L3 cache. Each CCD has an extra 64MBs of cache. CCDs are binned for closer to non-X3D max boost clocks. Heck, as long as we're dreaming, let's throw in a better shielded/built Infinity Fabric interconnect for higher interconnect clocks and lower latecy. Great for games now and new game 5 years from now!

All this for the low, low price of $999

They would probably not be making much at $999 to be honest, but yeah, we can all dream even if we cannot even afford that lol.