[Tom's Hardware] AMD Drops Third-Gen Threadripper From Latest Roadmap - Page 5 - Overclock.net - An Overclocking Community

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[Tom's Hardware] AMD Drops Third-Gen Threadripper From Latest Roadmap

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post #41 of 52 (permalink) Unread 05-15-2019, 08:42 AM - Thread Starter
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Quote: Originally Posted by bigjdubb View Post
Quote: Originally Posted by ozlay View Post
They could still release new Pcie 4.0 boards for current gen. [IMG class=inlineimg]/forum/images/smilies/smile.gif[/IMG]
I thought I read somewhere that some of the older boards will be able to be updated to pci-e 4.0 but it needs a pci-e 4.0 compatible cpu to actually function.
That's correct, currently Threadripper has 60 PCI-e 3.0 lanes.

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post #42 of 52 (permalink) Unread 05-15-2019, 08:50 AM
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Which begs the question, does it really need 4.0 right now? It seems like the pci-e 4.0 bandwidth's main use at this point (at least on x570) is to give us more 3.0 bandwidth lanes. Maybe that's only because we don't have any 4.0 products to use.

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post #43 of 52 (permalink) Unread 05-15-2019, 09:14 AM
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Quote: Originally Posted by bigjdubb View Post
I thought I read somewhere that some of the older boards will be able to be updated to pci-e 4.0 but it needs a pci-e 4.0 compatible cpu to actually function.
Yes. As long as you have PCIE 4 in the CPU, the lanes are connected directly from GPU slot to CPU, so as long as the signal integrity is good enough it will be able to run PCIE 4 speeds on older boards. Though for all possibly stability scenarios, motherboard makers may choose to set a flag in the bios that makes it run PCIE 3 speeds unless they get a board specifically certified as able to work under all conditions with the new standard.


Quote: Originally Posted by bigjdubb View Post
Which begs the question, does it really need 4.0 right now? It seems like the pci-e 4.0 bandwidth's main use at this point (at least on x570) is to give us more 3.0 bandwidth lanes. Maybe that's only because we don't have any 4.0 products to use.
It would be nice to have m.2 drives be of a PCIE4 2x variety, which would give the same bandwidth as current drives but we would be able to connect twice as many drives to our systems. While not really useful for Threadripper due to it already have enough lanes, this would be extremely useful in consumer space systems.
We have also been capped out on bandwidth for a LONG time on higher end Ethernet NICs. These NICs have supported PCIE 4 for a long time now so with the upgrade they will finally have their full potential unlocked.


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post #44 of 52 (permalink) Unread 05-15-2019, 09:22 AM
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just as the Z68 chipset for sandy bridge. some mobos, labeled as "revision 3 or R3" could accept ivy bridge chip and run pci-e 3.

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post #45 of 52 (permalink) Unread 05-15-2019, 11:02 AM
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Couldn't they reroute 32 gen3 lanes into 16 gen 4 lanes using a plx chip. Isn't that what Asus did with their sabertooth 990FX/GEN3 R2.0 board to get gen3 on am3+?

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post #46 of 52 (permalink) Unread 05-15-2019, 11:16 AM
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Quote: Originally Posted by ozlay View Post
Couldn't they reroute 32 gen3 lanes into 16 gen 4 lanes using a plx chip. Isn't that what Asus did with their sabertooth 990FX/GEN3 R2.0 board to get gen3 on am3+?
Thats the oposite direction a PLX chip usually goes, but I suppose they may be able to. It would be expensive though and no consumer platform has 32 lanes to do that with these days.


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post #47 of 52 (permalink) Unread 05-15-2019, 01:55 PM
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Quote: Originally Posted by EniGma1987 View Post
It would be nice to have m.2 drives be of a PCIE4 2x variety, which would give the same bandwidth as current drives but we would be able to connect twice as many drives to our systems. While not really useful for Threadripper due to it already have enough lanes, this would be extremely useful in consumer space systems.
We have also been capped out on bandwidth for a LONG time on higher end Ethernet NICs. These NICs have supported PCIE 4 for a long time now so with the upgrade they will finally have their full potential unlocked.
I think it's a baby step thing because of there not being any 4.0 drives to use. Instead of getting increased bandwidth for a drive they are using the bandwidth to allow more (but slower) 3.0 drives. Seems like the right solution at this point, especially for me since the only thing I hate about x470 is the lack of nvme drives. I have had 3 1tb NVME (3.0) drives just sitting in a box waiting for AMD to catch up.

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post #48 of 52 (permalink) Unread 05-18-2019, 04:48 PM
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Mmm what? Just get PCIe to NVME connector conversion card. Most boards don't come with NVME x4 for 3 drives or more. It's what expansion slots are for.
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post #49 of 52 (permalink) Unread 05-18-2019, 06:18 PM
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If a pcie 4.0 x2 slot is electronically x2. Wouldn't it run at pcie 3.0 x2 as well. So your pcie 3.0 x4 nvme drives would be slower running in a pcie 4.0 x2 slot?

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post #50 of 52 (permalink) Unread 05-19-2019, 02:33 PM
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I'm betting 7nm Threadripper will show up in 2020.

16 cores, 32 threads at a higher clock speed than the mainstream platform as the lowest end chip, kinda like what they did with the Threadripper 1900X. Moving on up from there. Hopefully existing TR4 boards can handle some of the upcoming chips. Although I wouldn't really mind upgrading my X399 Taichi too much, I was hoping to slot in a 16 or 24 core Zen 2 chip to take advantage of the higher clock speed before I retire this machine.

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