A little reminder:
While we thought we would only have one CPU, it is actually three processors that will be launched in February with the Ryzen 9 7950X3D and 7900X3D as well as the Ryzen 7 7800X3D. If the first two will be available from February 28, we will have to wait until April 6 to see the 7800X3D. To put it simply, this series of processors 7000X3D benefits from a “3D V-Cache” which is materialized by the addition of 64 MB of L3 cache.
These processors are mainly intended for gaming and competitive games such as e-sport in 1080p and 1440p. The idea is to ensure a maximum of FPS or in any case, the maximum of FPS in a constant way. AMD aims to offer the best performance, especially against the next i9-13900KS.
The series consists of three CPUs: the Ryzen 7 7800X3D with 8 cores/16 threads, the Ryzen 9 7900X3D with 12 cores/24 threads and the Ryzen 9 7950X3D with 16 cores/32 threads. The 7800X3D comes with a base frequency not yet defined by AMD as well as a Boost up to 5.00 GHz. The 7900X3D has a base frequency of 4.40 GHz and a Boost up to 5.60 GHz. Finally, the top of the range represented by the 7950X3D operates at 4.20 GHz and a Boost that can flirt with 5.70 GHz.
They come in a box quite similar to the Ryzen 7000X and do not have cooling solutions like the non-X Ryzen 7000. This is quite logical since it will be necessary to opt for an AIO type cooling as advised by AMD.
On the price side, if we base ourselves on the prices in dollars, the Ryzen 9 7950X3D would be sold at the same price as the 7950X, the Ryzen 9 7900X3D would be sold at 50$ more expensive than the 7900X and finally, the Ryzen 7 7800X3D would be available at 449$. You should know that currently, the Ryzen 7950X is around $565 in the US 650 euros thanks to a decrease started by AMD a few weeks ago. It remains to be seen if the Ryzen 7000X3D will be displayed directly on these new prices.
A little reminder about the architecture :
If you haven’t yet read our article regarding the testing of the new Ryzen 7000X, now is the time to check it out. The new Ryzen 7000X see the amount of L2 cache doubled, from 512 KB to 1 MB of L2 cache per core, compared to the previous generation (Ryzen 5000). On the other hand, there is no change in the amount of shared L3 cache memory, which remains at 32 MB per CCD. Here is a representation of the internal architecture of a Ryzen 9 7950X.
If we calculate the amount of L2 and L3 memory for our 7950X, we are at 16 MB of L2 since 16 cores + 2 x 32 MB of L3 (CCD0 + CCD1), which gives us a total of 80 MB. If you do the same calculation for the 7900X, you get 76 MB.
If we look at the specifications of the Ryzen 9 7950X3D, we have the original 80 MB of the processor + the 64 MB of L3 cache (3D V-Cache), which gives us a total of 144 MB. The 7900X3D will go from 76 to 140 MB (L2+L3) and the 7800X3D from 40 to 104 MB.
We now know how this “3D V-Cache” is implemented. Knowing that the 7800X3D has only one CCD, the 64 MB are therefore implemented on it. The Ryzen 9 7950X3D and 7900X3D also have a similar integration, which means that only one CCD benefits from the “3D V-Cache” technology and the other one is without it. When the cores are used for gaming, it is the CCD with the “3D V-Cache” solution that is used. The idea is to reduce the TDP and also to save money. We will see how this works in practice in games and in multitasking benchmarks.
