Here’s everything you need to know about AMD’s Zen 4 CPUs.
Zen 4 CPUs Use the New AM5 Socket
One of the biggest changes coming with Zen 4 is that the AM4 socket in use since 2016 is going away. In its place, we have AM5, an all-new socket that represents the biggest change to AMD CPU designs ever.If you’re wondering, the answer is yes. As AMD is rolling out its new AM5 socket, you’ll need a new motherboard that supports it. AMD has all-new X670, X670E, B650, and B650E chipsets for its new Ryzen 7000 chips. AM5 is a radically different socket in design and capabilities, so you can’t fit an AM5 CPU in an AM4 motherboard, and you can’t fit an older AM4 chip in an AM5 motherboard.
DDR5 and PCIe Gen 5.0 Are on Board
Intel’s 12th-Gen CPUs support DDR5 memory and PCIe Gen 5.0, and that support continues into Raptor Lake, as you’d expect. Those technologies are still in their infancy, but the new Zen 4 CPUs fully support them.In terms of memory, unlike Intel chips, Zen 4 AMD CPUs only support DDR5 memory. So if you wanted to get yourself a DDR4-compatible motherboard and RAM to save a buck, that sadly won’t be possible—you’ll need to go all-in with DDR5.
As for PCI Express Gen 5.0, it’s amply supported on Ryzen 7000 CPUs. Whether you can use it or not, however, will depend on your motherboard choice. If you wish for full PCIe Gen 5.0 support, you’ll have to go for an X670E or a B650E motherboard rather than a standard one. This will allow you to use Gen 5.0 speeds for your SSDs.
EXPO is AMD’s Answer to XMP.
AMD is also firing back at Intel in other regards. While Intel XMP is the standard for memory Overclocking, the fact that we now have DDR5 gives AMD a shot at bringing its own technology to users. EXPO is its proper answer to XMP, and it comes with Zen 4 chips.
EXPO is supported across a large range of DDR5 RAM sticks, including Corsair, ADATA, G.Skill, and Kingston. You should expect it to be roughly the same as XMP.
It’s just memory Overclocking, after all. The difference now is that instead of relying on third-party memory Overclocking tech, we have an in-house solution developed by AMD.
3D V-Cache Might Be in Tow
The potential of AMD’s 3D V-Cache technology was shown with the release of AMD’s Ryzen 7 5800X3D CPU. The technology, which allows the chip to have a whopping 96MB of L3 cache, yields impressive results for gamers. The question then arises: do we have 3D V-Cache here? The answer is not yet, but that might change in the future.
Ryzen 7000 chips don’t have 3D V-Cache, but as per rumors, that might not be that way forever. As per Twitter source Greymon55, production lines are busy with the 5800X3D right now, but we might get 3D flavors of Zen 4 chips in 2023.