AMD first pioneered this technology to the mainstream PC market, followed by Intel not very long after.
The list however is not infinite so to speak.
In this article, I will provide you with the complete PCIe 4.0 Intel and AMD CPU compatibility index.
Lets have a look, shall we?
Not to mention, selected mobile processors both from Intel and AMD boast PCIe 4.0.
Also, you better ensure the motherboard has PCIe 4.0 slots and theCPU is compatible with the motherboard.
Otherwise, you have a half-baked computer at your disposal.
Although some chipsets such as Intel 500 series have no native PCIe 4.0 support.
But that doesnt restrict the board manufacturers to implement PCIe 4.0.
Because the processor can fully operate on PCIe 4.0 interface.
Some AMD 500 series chipsets such as B550 & X670 have PCIe 4.0 embedded in them.
But remember, the 8-pin CPU cable looks relatively the same as the PCIe 4.0.
Butthe CPU and PCIe cables are completely different, and they have functional dissimilarities.
But Does PCIe 4.0 Matter?
PCIe 4.0 opened up a new horizon as opposed to its predecessor.
It doubles the effective bandwidth, which is 64GB/s.
The throughput is also doubled, acting at 2GB/s per lane.
What does that interpret in the real world?
Well, you get blazing-fast reading and writing speed.
you could save hours of time just by going from PCIe 3.0 to 4.0.
Only because it can not take advantage of the maximum throughput of an x16 PCIe 3.0 slot.
In such cases, PCIe 4.0 is worth a shot.
Ending Remarks
So, thats all about the PCIe 4.0 compatibility of Intel and AMD processors.
Hope you find it useful.