Ryzen 7000 3D V-Cache CPUs May Offer Even More Bandwidth Than First-Gen Counterparts
According to a semiconductor engineer’s tweet, Tom Wasick (opens in new tab) It looks like the Ryzen 7000 processors have received some upgrades in preparation for upcoming SKUs with 3D V-Cache. Wassick reportedly spotted more TSV columns in the Zen 4 CCD and this upgrade allows for greater V-Cache bandwidth than the Ryzen 7 5800X3D, one of his best CPUs for gaming. It has been suggested that this may be possible.
More specifically, Ryzen 7000 chips will have two much larger and denser arrays with some reduced pitch and additional TSV rows, Wasik says. It means that the 3D V-Cache slab has more contact area with the CPU, which means more L3 cache bandwidth and potentially extra power.
3D V-Cache is AMD’s stacked L3 caching technology that allows chip makers to stack an additional 64MB of SRAM cache on top of Ryzen’s CCD, thereby tripling the amount of L3 cache available on the chip. It can significantly improve L3 cache sensitive workloads such as games. .
The only consumer chip AMD has released with 3D V-Cache technology is the Ryzen 7 5800X3D with a total of 96MB of L3 cache. The Ryzen 7 5800X3D has soared to the top of the gaming charts, matching or possibly surpassing competitors such as Intel’s 12th Gen Alder Lake CPUs.
For Ryzen 7000, additional TSV contacts suggest AMD’s 2nd Gen implementation of Stacked Cache has potential for higher bandwidth than the Ryzen 7 5800X3D’s already impressive 2 TBps bandwidth. doing. However, since the L3 cache size is relatively small compared to DDR4/DDR5 memory, having more bandwidth is always desirable. So the CPU can swap resources in his L3 cache faster. performance.
Additional contacts would also provide other power inputs to the 3D V-Cache if desired. The extra power could also significantly boost V-Cache performance, but that would depend on the design choices AMD uses for his Ryzen 7000 parts. 3D V-Cache could be more efficient, requiring less power instead of more power.
Overall, these additional TSVs don’t say much about how AMD’s next-gen 3D V-Cache will perform or how much better it will be than the 5800X3D. It’s quite possible that the Ryzen 7000X3D would at least mean more bandwidth than the Ryzen 7 5800X3D.
