Z590 Explained – PCIe GEN 4!
|Intel’s Z590 chipset is here, alongside their new 11th gen CPUs, and there’s a lot new you should know about. From PCIe Gen 4, to faster RAM speed, lets take a look at what’s new with Z590 boards, what CPUs are supported – and features they offer – and plenty more. But first, if you haven’t already, consider subscribing for more videos like this one every Monday, Wednesday and Friday.
So, Z590. This is an incremental upgrade over last year’s Z490 boards. It’s the same LGA1200 socket, and does have drop in support for the last gen 10 series CPUs like the 10900K. That does mean that, along with BIOS updates, Z490 boards should also be forwards compatible with the new 11th gen chips.
Z590 does have some advantages, namely its connectivity. It now supports PCIe Gen 4 natively from the CPU, meaning you can now use the 20 available lanes from the CPU with PCIe Gen 4 GPUs and storage. It seems like it’ll be up to the motherboard vendors to split the 20 lanes how they like, although most seem to have adopted the same layout as AMD boards, using 16 lanes for primary and secondary GPU slots and 4 lanes direct to the top M.2 slot for full PCIe Gen 4 speeds.
Another advantage over 400 series boards is the expanded chipset link. Intel, unlike AMD, uses a mildly proprietary connection to it’s chipsets called “DMI”. It’s pretty similar to PCIe, including currently being “DMI 3.0”, but the proprietary nature might have hindered the implementation of “DMI 4.0” for these boards, as instead Intel opted to expand the number of DMI 3.0 lanes to 8, up from Z490’s 4, which effectively matches AMD’s X570 boards PCIe Gen 4 x4 link in terms of bandwidth. That means, at least in theory, you can run 2 PCIe gen 3 SSDs at full speed through the Z590 chipset AND a PCIe Gen 4 SSD direct to the CPU without bottlenecks. That’s definitely better than Z490 which has no spare lanes for storage.
Along with more bandwidth, Intel added USB 3.2 Gen 2×2 – the fastest 20Gbps one – to be natively supported. That means boards should all be coming with 20Gbps ports, no longer needing extra controllers from the likes of ASMedia. Thunderbolt 4 is also built in too, which while still 40Gbps, much like Thunderbolt 3, is now part of the USB standard and should carry more long term support with it.
Finally, on the RAM speed side of things, since Intel increased the ‘supported’ frequency for their higher end chips to 3200MHz, up from 2933MHz on last gen, boards are now being designed around that frequency as a base. Of course, you can still run much, much faster modules if you’d like, although that will still void your CPU warranty so keep that in mind. You can always buy Intel’s “Performance Tuning Protection Plan” if you are really worried.
There is one thing to note here though, since the PCIe Gen 4 support comes from the CPU, much like AMD’s Ryzen 3000 and 5000 series CPUs, running a 10th gen chip in a Z590 won’t ‘unlock’ gen 4 support. But, along with a suitable BIOS update, running a newer 11th gen chip in the older Z490 boards should still support PCIe Gen 4 through the main x16 slot(s) and potentially an M.2 slot, although many Z490 boards (if not all) routed all M.2 slots via the chipset which won’t be upgraded to the 8 lane connection by using the new chips.