B550 vs X570

[pookeyhead]

I know the technical differences, but the only one that concerns me, and also one I cannot get a definitive answer to, is does the slower PCIe link between the CPU and chipset have any real world impact on performance? I mean, will Cinebench scores be lower?  Video rendering times longer?  Will a 5900X on a B550 board with a 3080 be noticeably, or even measurably slower than the same parts on a X570 mobo in rendering, video and photo editing and gaming?  That's all I do with my current machine.

[SorryBella]

25 minutes ago, pookeyhead said:

is does the slower PCIe link between the CPU and chipset have any real world impact on performance?

Except in edge case? No. And most of the time, the existing 20-lane on the CPU (4 dedicated to chipset) is the only one thatll be filled by you in a system with 1 GPU and 1 nvme storage. And chipset doesnt affect CPU performance by a long shot, and most of the "deficits" between motherboards can be gained back by either good overclock or a good thermal tweaking (thanks to AMD's precision boost aggressive turbo algorithm). As long as the VRM isnt horribly made, your CPU is going to perform at its prime.

[pookeyhead]

I imagined that would be so.  I have no need for a zillion PCIe peripherals, or masses of fast storage, so that should be fine then.  I want my next build to be mATX and there's a distinct lack of X570 mATX boards.

[Mooshi]

Unless you plan on using more than 1 graphics card, matx isn't really that fantastic. I had an matx build ages ago and either do itx or standard atx these days.

[pookeyhead]

10 hours ago, Mooshi said:

Unless you plan on using more than 1 graphics card, matx isn't really that fantastic

Can you explain why? Hardly anyone will be using more than one GPU these days, as SLI sucks.  I thought the build for my daughter I just did (mATX) was really great. I had room for a 280 AIO at the top, and still room for a 2.5 slot GPU. If she wants a larger GPU I can easily move the AIO to the front. The motherboard is well featured, and the build was relatively painless. What was it about mATX you didn't like?

[Mooshi]

6 hours ago, pookeyhead said:

Can you explain why? Hardly anyone will be using more than one GPU these days, as SLI sucks.  I thought the build for my daughter I just did (mATX) was really great. I had room for a 280 AIO at the top, and still room for a 2.5 slot GPU. If she wants a larger GPU I can easily move the AIO to the front. The motherboard is well featured, and the build was relatively painless. What was it about mATX you didn't like?

It's a weird compromise of not really saving much space compared to a compact atx case. 

 

if you want small, there is itx. You don't need a 280mm rad AIO, it's more a luxury if the case can fit it. If you want to have tons of room, there is atx. This is why I'm not that big on matx.