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Documents show AMD AM5 will use DDR5 and PCI-E 4.0, not 5.0
According to new documents stolen during the attack on Gigabyte, the AM5 platform's I/O scheme has been published, revealing that 600 Series motherboards would use DDR5 memory and that PCI-E 4.0 will continue to be used, at least in Ryzen 7000s.
Specifically, it verifies that DDR5 memories will be supported in Dual Channel configuration, allowing a maximum of four RAM modules to be installed, as has been typical in “Mainstream” platforms for many years. There will be 16 lines dedicated to GPUs on the other side of the PCI-Express 4.0 lines coming from the CPU, 4 lines for an M.2 NVME SSD, and another 4 lines for a USB 4.0 controller that will also have a Displayport connection to allow it to work in alt-mode. There will also be a Displayport connection to allow it to work in alt-mode. Two video outputs, two USB 2.0 ports, one USB 3.2 Gen2 port, sound connections, and the connections for the BIOS are among the other connections that come out of the processor.
A number of PCI-E 4.0 lanes will be available on the chipset's side, which will be connected to the CPU by four PCI-E 4.0 lanes. These will be used for NVME ports, LAN, Wi-Fi modules, and other peripherals, as well as support for 10Gbps and 20Gbps USB 3.2, USB2 compatibility, and numerous SATA ports.
As a result, aside from support for DDR5 and USB4, there will be no significant changes in the I / O when compared to AM5. It will be interesting to observe when it transitions to PCI-E 5.0, which may not occur until the Ryzen 8000 or 9000 series processors are used in conjunction with the 700 or 800 Series motherboards.
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thesebastian
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#5940081 Posted on: 08/22/2021 01:43 PM
PCI-E 5.0 would have been greater. But the only thing I care about (for my usage) is if it's bottlenecks gaming. ( so, if it's bottlenecks the dGPU I'm using or will be using with the build).
I think PCI 4.0 x16 still has several years to go.
As for storage. I don't really care about sequential speeds. I do care about all the others.
Considering how the GPUs are evolving. I think I'll need to wait more than 10 years to need PCI 5.0 to get a benefit in gaming. (I hope I'm wrong)
PCI-E 5.0 would have been greater. But the only thing I care about (for my usage) is if it's bottlenecks gaming. ( so, if it's bottlenecks the dGPU I'm using or will be using with the build).
I think PCI 4.0 x16 still has several years to go.
As for storage. I don't really care about sequential speeds. I do care about all the others.
Considering how the GPUs are evolving. I think I'll need to wait more than 10 years to need PCI 5.0 to get a benefit in gaming. (I hope I'm wrong)
Nicked_Wicked
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Joined: 2019-04-21
Senior Member
Posts: 213
Joined: 2019-04-21
#5940091 Posted on: 08/22/2021 02:34 PM
I don’t think a lot of people realise the physical requirements for PCIE 5.0 are very complex especially in ATX form or even smaller.
Not even mentioning it is utterly useless and very expensive for consumers or even prosumers, only datacenters can make use of it. I wouldn’t expect PCIE 5.0 to become a consumer standard until 2025 or even beyond.
I don’t think a lot of people realise the physical requirements for PCIE 5.0 are very complex especially in ATX form or even smaller.
Not even mentioning it is utterly useless and very expensive for consumers or even prosumers, only datacenters can make use of it. I wouldn’t expect PCIE 5.0 to become a consumer standard until 2025 or even beyond.
Kaleid
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Posts: 2694
Joined: 2004-02-02
#5940132 Posted on: 08/22/2021 06:03 PM
A bit shame, but perhaps it doesn't do so much for directstorage performance. I doubt GPUs have any use for PCI-E 5.0 for a long time.
A bit shame, but perhaps it doesn't do so much for directstorage performance. I doubt GPUs have any use for PCI-E 5.0 for a long time.
Kaarme
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Joined: 2013-03-10
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Posts: 2953
Joined: 2013-03-10
#5940136 Posted on: 08/22/2021 06:13 PM
Technology needs to develop, but it'd seem somewhat premature to be moving to 5.0 already when 4.0 is still so fresh and underused. Intel failed to implement 4.0 with the 10th gen, only getting it working with the 11th gen, and AMD as well had to compromise with the chipset designs to get it functional. It feels like 4.0 NVMe SSDs started to appear in significant numbers only this year, and remain more expensive than the old 3.0 ones. All that being said, 4.0 wouldn't really need to last as long as 3.0, of course. But from my layman's pov, perhaps AMD and Intel would benefit from perfecting everything about 4.0 before reaching for the moon once again.
Technology needs to develop, but it'd seem somewhat premature to be moving to 5.0 already when 4.0 is still so fresh and underused. Intel failed to implement 4.0 with the 10th gen, only getting it working with the 11th gen, and AMD as well had to compromise with the chipset designs to get it functional. It feels like 4.0 NVMe SSDs started to appear in significant numbers only this year, and remain more expensive than the old 3.0 ones. All that being said, 4.0 wouldn't really need to last as long as 3.0, of course. But from my layman's pov, perhaps AMD and Intel would benefit from perfecting everything about 4.0 before reaching for the moon once again.
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Gcn obsolete? Vega vii is obsolete for you? I guess we have different meanings for that.
About Intel / amd well kinda right, but it's really sad that Intel COULD do it meanwhile AMD, the company that usually brings something new to the table, is failing even a popular meme.
gcn is pretty much eol at this point, it is basically at the same stage as late terascale parts were in 2013 , they still ship gcn(vega) in apus, but that wont be for much longer, the radeon 7 is approaching 3 years old, there will be driver support for a while longer, i wouldn't expect much past 2023.