The symbol rate for 6.0 is only 32Gsym/s. So GT/s can't be symbol rate. (And the references to PCIe 6.0 putting it at "64 GT/s" seem to be far more common, and in particular the PCIe (4.0, newest I have access to) specification explicitly equates GT/s with data rate.
My takeaway (even before this discussion) is to avoid "GT/s" as much as possible since the unit is really not well defined.
(And, still, I don't even know if there is a definition of it anywhere. I can't find one. The PCIe spec uses it without defining it, but it is not a "textbook common" unit IMHO. If you are aware of an actual definition, or maybe even just a place¹ that can confirm the T is supposed to mean "transfer", I'd appreciate that!)
¹ yes I know wikipedia says that too, but their sources are… very questionable.
P.S.: I really don't even disagree with you, because ultimately I'm saying "GT/s is confusing and can be interpreted different ways". The links from each of us just straight up conflict with each other in their use of GT/s. Yours uses it for symbol rate, mine uses it for data rate. ⇒ why I try to avoid using this unit at all.
https://pcisig.com/pci-express-6.0-specification "64 GT/s raw data rate and up to 256 GB/s via x16 configuration"
The symbol rate for 6.0 is only 32Gsym/s. So GT/s can't be symbol rate. (And the references to PCIe 6.0 putting it at "64 GT/s" seem to be far more common, and in particular the PCIe (4.0, newest I have access to) specification explicitly equates GT/s with data rate.
My takeaway (even before this discussion) is to avoid "GT/s" as much as possible since the unit is really not well defined.
(And, still, I don't even know if there is a definition of it anywhere. I can't find one. The PCIe spec uses it without defining it, but it is not a "textbook common" unit IMHO. If you are aware of an actual definition, or maybe even just a place¹ that can confirm the T is supposed to mean "transfer", I'd appreciate that!)
¹ yes I know wikipedia says that too, but their sources are… very questionable.
P.S.: I really don't even disagree with you, because ultimately I'm saying "GT/s is confusing and can be interpreted different ways". The links from each of us just straight up conflict with each other in their use of GT/s. Yours uses it for symbol rate, mine uses it for data rate. ⇒ why I try to avoid using this unit at all.