The chance of seeing PCIe 5.0-capable chipsets in AM5's lifetime is effectively nil. Multi-GPU is dead (and no GPUs use 5.0 anyway), there are no other PCIe 5.0 expansion cards, and PCIe 5.0 SSDs are still rare enough that the two 5.0 M.2 slots off the CPU are going to be enough for almost anyone.
I wouldn't say that, perhaps the chipset after 800 will get PCIe5.0, when Gen5-SSD are common place and they need a broader connection to the CPU. Multi-GPu never had anythin to do with chipset-lanes after AM3+ and S1366.
The underlying problem is that Prom21 is a shit chipset.
I fully agree with you for the reason you explained. The two chips take up quite a lot of space, too and you don't get nearly as much connectivity out of them as of Z790. Intel has much more experience designing chipsets than Asmedia does.
Prom21 is a consumer chipset, and it's fine for that. One x16 for graphics and two x4 for storage from the CPU and another 8 lanes coming from the chipset are more than enough for any home build.
It is not that 8 lanes Gen4 plus up to 8 lanes Gen3 or up to 8 SATA is so bad (I could do with 4-8 lanes Gen4 more for PCIe Slots), it is the waste of space and resources needed to achieve that.
Thats interesting. Pretty much every product that uses that chip is advertised for "up to 40Gbps". If the technical max is 32Gbps, then saying "up to 40Gbps" is straight up lying. How are they allowed to get away with that?
It's hard finding benchmarks to determine that, but since PCIe3.0x4 maxes out at ~3.5GB/s (which should be 3.9GB/s in theory), I would bet TB4 is limited by that since there ist no Gen4-controller. PCIe Gen3 to Gen5 should even be more effective with 128b/130b-coding compared to 64b/66b on TB3/4. It would be interesting to see if CPUs with integrated TB4 or USB4 on ASM4242 can achieve more than 3.5GB/s.
No where good to put that many on the MB, and nvme drives throttle too much anyway. I wish they would keep 1-2 for people who don't need more than one main drive for the pc and then remove all sata and replace those ports with 6 or more u.3 ports. Go back to that 2.5 form factor for nvmes and allow higher capacities and no throttling from the extra heat sinking capacity. U.3 allows sata through it anyway so technically they aren't losing capability for older, slower drives, but rather replacing far outdated ports with ones that have higher speed and more functionality.
I'm all for going backt to 2.5" or even 3.5", not wasting so much space on mainboards and getting better cooling, but I don't see U.3 as the solution. U.2/U.3 has a pretty big connector on the mainboard, as big as 2xSATA, and it will be hard to place more than 4 of those next to each other at the edge of the board as replacement of SATA. The cables are pretty thick and stiff, to. Plus, I don't know if U.3 ist up to Gen5. It would be better to have a smaller connector like Oculink with up to Gen4x8 or Gen5 in the future, connecting up to two SSD per port.
Dont worry they need those for rebranded X670/B650/A620s
Read the artice again, 800 is a rebrand of 600 with USB4 via ASM4242. AMD is wasting denominations like crazy.
I doubt the truth in this rumour, though. Ryzen 8000 with Phoenix APU already has USB4 inside an there allready are AM5-boards with B650E-chipset that can utilize that. I would bet that Ryzen 9000 upgrades it's USB 10Gb/s-Ports to USB4 to make seperate controllers obsolete.