F5F Stay Refreshed Hardware Desktop converters for pcie gen 5 x4 to gen 3 x16

converters for pcie gen 5 x4 to gen 3 x16

converters for pcie gen 5 x4 to gen 3 x16

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JamesHond7
Posting Freak
838
11-22-2022, 01:27 AM
#1
Yes, there is a PCIe Gen 5 x4 to PCIe Gen 3 x16 converter. Such a device enables you to connect a real GPU or work with it in a compatible setup.
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JamesHond7
11-22-2022, 01:27 AM #1

Yes, there is a PCIe Gen 5 x4 to PCIe Gen 3 x16 converter. Such a device enables you to connect a real GPU or work with it in a compatible setup.

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Crystal_Potato
Junior Member
47
11-23-2022, 05:24 AM
#2
A few problems I see: Thunderbolt 4 is still the 40Gbps of TB3; we're not close to PCIe Gen4 speeds over TB, let alone Gen5; the cable and connector specifications would likely need to be revised to account for that much bandwidth with so few conductors PCIe switch/mux chips run extremely hot, and require a lot of power, require very specific engineering, and I think eGPUs will fall to the wayside because of this Internal laptop GPUs are getting more efficient/capable; driving 4K displays >60Hz displays with a laptop GPU is realistic now where it wasn't when TB was introduced Aside for perhaps extremely niche industrial applications, there's no other need for that much bandwidth in a laptop
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Crystal_Potato
11-23-2022, 05:24 AM #2

A few problems I see: Thunderbolt 4 is still the 40Gbps of TB3; we're not close to PCIe Gen4 speeds over TB, let alone Gen5; the cable and connector specifications would likely need to be revised to account for that much bandwidth with so few conductors PCIe switch/mux chips run extremely hot, and require a lot of power, require very specific engineering, and I think eGPUs will fall to the wayside because of this Internal laptop GPUs are getting more efficient/capable; driving 4K displays >60Hz displays with a laptop GPU is realistic now where it wasn't when TB was introduced Aside for perhaps extremely niche industrial applications, there's no other need for that much bandwidth in a laptop

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AlphaKitty2000
Junior Member
48
11-23-2022, 07:07 AM
#3
I did not talk about Thunderbolt 4, what I was asking is if doing without a pcie x4 slot (instead of using it for an ssd) through an external extension cord it is possible to insert a PCI 2 x16 graphics card, this allows you to have a laptop maybe a very light ultrabook that if connected to a fixed location can provide a power comparable to a fixed. The fact that PCIe switch/mux heat up I don't see it as an extremely serious problem since they could be placed outside the laptop (maybe in the case of the egpu). This would in my opinion be very useful in niche environments, both for casual gamers and for professionals who need to have an extremely portable and efficient device on the move but with high power in a fixed location when needed (other than apple ).
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AlphaKitty2000
11-23-2022, 07:07 AM #3

I did not talk about Thunderbolt 4, what I was asking is if doing without a pcie x4 slot (instead of using it for an ssd) through an external extension cord it is possible to insert a PCI 2 x16 graphics card, this allows you to have a laptop maybe a very light ultrabook that if connected to a fixed location can provide a power comparable to a fixed. The fact that PCIe switch/mux heat up I don't see it as an extremely serious problem since they could be placed outside the laptop (maybe in the case of the egpu). This would in my opinion be very useful in niche environments, both for casual gamers and for professionals who need to have an extremely portable and efficient device on the move but with high power in a fixed location when needed (other than apple ).

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AhmetUtku
Member
178
11-23-2022, 09:04 AM
#4
You won't be able to transmit PCIe 5 over any meaningful distance with standard cables until a better technology emerges. You'd need a PCIe switch built into the card and a riser similar to what's used for GPUs, which isn't feasible. Even with a PCIe 3 switch, the price bump to compatible peripherals would be around $150, making it economically unwise. The only viable option is using two separate devices.
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AhmetUtku
11-23-2022, 09:04 AM #4

You won't be able to transmit PCIe 5 over any meaningful distance with standard cables until a better technology emerges. You'd need a PCIe switch built into the card and a riser similar to what's used for GPUs, which isn't feasible. Even with a PCIe 3 switch, the price bump to compatible peripherals would be around $150, making it economically unwise. The only viable option is using two separate devices.