I had a matx case and for the life of me was so hard to find a b650e m/i motherboard to fit.
Bit the bullet on a b650m gigabyte aorus elite ax.
If you were upgrading to a future 5080/5090 would you return this motherboard and buy/wait for a b650e matx?
Definitely not the case. Given PCIe bandwidth doubles every generation and we only saw very minor differences between 3.0 and 4.0.
much the same we see every generation where with the newest card on the newest version of pcie versus the previous version it's about a 1 to 3% range so that's what we're seeing there.
Dont get your question, whats the motherboad got to do with any form of bottlenecks either for the CPU or GPU?
And what if any differences is between a B650M or what the B650E chipset motherboad?
Edit: oh PCIe4.0 slot, will a 5090 max to the speeds of PCIE 4.0?
Correct. Current purchase has all the things I need but is Pcie 4 on gfx going to be detrimental on a 5080 or 5090.
I think you'll be fine. I can't see it fully saturating the PCIe 4.0 lanes. Especially when an RTX 4090 barely saturates a PCIe 3.0 slot, let alone a PCIe 4.0 slot.
Unless something changed we're a few generations away from when PCIe 5.0 it really matters. At least those with it can feel good knowing that they're "future proof".
To be honest, no one can completely be sure if the bandwidth of x16 PCIe 4.0 lanes will be a lower bandwidth than what the 50 series will use.
All we know is the rating of both standards, however, just because the 5000 series uses PCIe 5.0, doesn't mean it will 'need it', it would need to use above the maximum capacity of PCIe 4.0 across 16 lanes, first, then it will depend by how much, then, it will depend on the scenarios if that will even matter to you.
If you want to be completely sure, there are PCIe 5.0 motherboards, I think B650/E are available, be careful about the M.2 SSD slots though as they may use some of the same lanes, etc.
Cant find one with local stock thats available. only amazon germany for a b650e and i heard these have bad coil whine
b650m gigabyte aorus elite ax
Piece of crap, Gonna have to warranty mine since its a paperweight right now.
I have ATX version of the same board, what happened to yours?
Q-flash Plus wont work.
Ended up buying a MSI B650m Mortar the next day, Bios flashback worked perfectly the first time.
B650M has a PCIe 4.0 slot, the RTX 5080/5090 is rumoured to be PCIe 5.0 so likely to be a bottleneck when maxing it out.
What CPU you pair with it may be more of a concern. Though don't imagine many will be running a 5090 with a midrange B650 board in the first place.