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Will PCIE 5.0 be worth it?

Considering that even Intel hadn't use 4.0... yet... I think 5.0 will come around in about 4 to 5 years or so.

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21 minutes ago, OllieDoesntUnderstand said:

Will PCIE 5.0 be worth it?

How should anyone know, when PCIe 5.0 isn't out and isn't going to be out for a while longer?

22 minutes ago, OllieDoesntUnderstand said:

Want to use current GPU on next gen motherboards even though they have am5 and wasn't sure if there will be any problems.

PCIe - bus is backwards-compatible. You can put a PCIe 1.0 - device in a PCIe 4.0 - bus and it'll work just fine.

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11 minutes ago, PiberiusWilde said:

Considering that even Intel hadn't use 4.0... yet... I think 5.0 will come around in about 4 to 5 years or so.

I don't think that late, pcie gen 6 is ready, it'll only take a year or 2 for gen 5 to be used, maybe zen 4/5 and alder-lake and what's beyond that

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it honestly depends what gpu youre using considering the bandwith difference between most pcie gens if you have the best next gen gpu and use it to its fullest its gonna be much faster.  Thats why theyre making the new generations because as gpus get faster and process more data at a given time you need more bandwidth to make sure youre not bottlenecked.   but if you mean should you upgrade to a pcie 4.0 motherboard because youre getting a 30 series card you dont need to as you can see here https://www.extremetech.com/gaming/314627-nvidia-ampere-rtx-gpu-pcie#:~:text=You might also be happy,slots wouldn't cut it.

 

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9 minutes ago, big oof 1 said:

it honestly depends what gpu youre using considering the bandwith difference between most pcie gens if you have the best next gen gpu and use it to its fullest its gonna be much faster.  Thats why theyre making the new generations because as gpus get faster and process more data at a given time you need more bandwidth to make sure youre not bottlenecked.   but if you mean should you upgrade to a pcie 4.0 motherboard because youre getting a 30 series card you dont need to as you can see here https://www.extremetech.com/gaming/314627-nvidia-ampere-rtx-gpu-pcie#:~:text=You might also be happy,slots wouldn't cut it.

 

For consumers at least, PCIe ver 5 isn't needed at all. Come to think of it, neither is PCIe ver 4. Now that said: A Supercomputer(s) might be able to benefit from the newest PCIe Generations if they are not using something else already.

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2 minutes ago, whm1974 said:

For consumers at least, PCIe ver 5 isn't needed at all. Come to think of it, neither is PCIe ver 4. Now that said: A Supercomputer(s) might be able to benefit from the newest PCIe Generations if they are not using something else already.

true, even if you have the most powerful 3090 you dont need pcie 4.0

 

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Even with new direct storage technologies you still will not saturate a x16 PCIe 4.0 link. PCIe 4.0 can roughly do something like 30-32GB/s in each direction in which case the actual memory allocations and data object creation will take more time then the data transfer will take even when using an API like Vulkan or D3D12 where you're approaching zero driver overhead. So every frame or so at 60FPs you could theoretically move 0.5GB of data to the GPU. Not including any latencies due to CPU - GPU synchronization.

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4 hours ago, big oof 1 said:

it honestly depends what gpu youre using considering the bandwith difference between most pcie gens if you have the best next gen gpu and use it to its fullest its gonna be much faster.  Thats why theyre making the new generations because as gpus get faster and process more data at a given time you need more bandwidth to make sure youre not bottlenecked.   but if you mean should you upgrade to a pcie 4.0 motherboard because youre getting a 30 series card you dont need to as you can see here https://www.extremetech.com/gaming/314627-nvidia-ampere-rtx-gpu-pcie#:~:text=You might also be happy,slots wouldn't cut it.

 

yeah  cool, I'm hoping to get a 6800 XT but I'm new and was wondering if it would work with next gen motherboards (X670 and B650) but now i know that PCIe 5 will be maybe two years. Thanks

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13 hours ago, OllieDoesntUnderstand said:

Want to use current GPU on next gen motherboards even though they have am5 and wasn't sure if there will be any problems.

This, and your previous posts, don't make much sense in the context they're being asked.

 

Why are you asking about technology that won't be out for another 5 years?

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2 minutes ago, Dedayog said:

This, and your previous posts, don't make much sense in the context they're being asked.

 

Why are you asking about technology that won't be out for another 5 years?

I didnt know sorry. I thought it was every year my bad. 

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I haven't read anything recent about AM5, at least not from AMD anyway. It would make more sense for AMD to use DDR5 for EPYC first anyway. 

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14 hours ago, OllieDoesntUnderstand said:

Want to use current GPU on next gen motherboards even though they have am5 and wasn't sure if there will be any problems.

Considering that it isn't even out in data centers and such afaik, and Intel is laughing themselves to literal death, I'd say ask the question in about 5 years

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Only for the CPU-PCH interconnect. The more bandwidth there, the more useful lanes of the PCH are.

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11 minutes ago, piratemonkey said:

Considering that it isn't even out in data centers and such afaik, and Intel is laughing themselves to literal death, I'd say ask the question in about 5 years

I don't think that Data Centers use Consumer level Sockets and CPUs at all.

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It is so far ahead now they should standardize GPU at 8x and give you the rest for I/O (keeping the same lanes).

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We are getting to the point where speed or throughout isn’t the main benefit of some standards (others it will be for a few generations still). Instead it’s the features and other capabilities that are the highlights. 
 

What does 5 have over 4 and 3 on that front?

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2 minutes ago, NineEyeRon said:

We are getting to the point where speed or throughout isn’t the main benefit of some standards (others it will be for a few generations still). Instead it’s the features and other capabilities that are the highlights. 
 

What does 5 have over 4 and 3 on that front?

The problem is how limited the lanes are.  At one time I had a 2950x just to get more lanes but when it died I settled and found more creative ways around the issue since the zen2 price went way up.  Like having a hotswap NVME x4 bay.  We also have things like USB 4.0 which is specked at 40Gbit.

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56 minutes ago, whm1974 said:

I don't think that Data Centers use Consumer level Sockets and CPUs at all.

I was talking generally about pcie5. Data centres (and other professional server type things) have access to new stuff way before consumers. So afaik they've been using pcie4 for a long time now

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54 minutes ago, ewitte said:

The problem is how limited the lanes are. 

That didn’t really answer my question, you are not wrong but I think that response better fits someone else’s point.

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For the mainstream and for gamers, it wouldn't be worth it.

Our GPUs don't max out PCIe 3.0 speeds, much less PCIe 4.0.

 

Could be worth it for very, VERY high speed raid0 storage and server stuff... But that's about it.

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PCIe 5.0 is more important for the enterprise. Imagine having 128 lanes per CPU to use for ~50nvme drives and a few 100Gbps ethernet links (or one 400Gbps)

 

3 hours ago, TetraSky said:

Could be worth it for very, VERY high speed raid0 storage and server stuff... But that's about it.

There's almost no reason to use RAID0 or similar EVER. The reliability and consistency of it is just... bad. RAID5/6 or Z1/Z2/Z3 (of 60 or two Z2 Pools) will have similarish performance characteristics with a close enough price. If even further performance is needed... cache. Use RAM. Store the most common things in memory - just be aware that 8 channel DDR4 pretty much peaks at ~100GB/s, which is slower than what you'd get from a wide enough RAID array, especially if some of the operations have overhead (I think ZFS ends up doing 2-3 operations [data integrity is prioritized over performance and historically RAM wasn't a bottleneck] for every bit of data transferred which means "only" 50GB/s or 33GB/s). 

For context, in a lot of "server" applications RELIABILITY IS KING. Think 1 minute of downtime creating $100,000 of costs. 10% more performance doesn't matter - just spend 10% more on hardware. 

 

Full disclosure, this is outside of my expertise. I did work in dev-ops at a telco in the past but I was never speccing or configuring servers. beyond that many of the "top players" are using distributed file systems. 
 

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