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All AMD ThreadRipper CPU's will have 64 PCIe Lanes

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11–20 of 144 posts

Re: All AMD ThreadRipper CPU's will have 64 PCIe Lanes

#12

The huge number of PCIe lanes is pretty exciting to me. For consumers, the limiting factor in PCs these days tends to be I/O. With this, you could have 4 PCIe M2 SSDs (that's a bit under 16Gbps bandwidth, assuming RAID0), and still have 44 lanes (the number in the top-end Intel CPU) to spare for GPUs and other peripherals.

I don't fully understand. So 1 SSD need 1 lane. How many lanes need something like NVisia 1080Ti? What use of the remaining lanes? If I want to build something like 1 CPU/1 GPU/1 SSD configuration without additional peripherals, 62 lanes will be effectively wasted?

A GPU can use 16x 3.0 lanes, theoretically. In practice 8 lanes is enough, people have measured performance between 16x and 8x, it's almost the same.

SSDs use 4x, if you do buy an NVMe drive that is. (In my country, these things are TWICE as expensive as SATA SSDs lol)

Re: All AMD ThreadRipper CPU's will have 64 PCIe Lanes

#13

We all benefit when AMD is a player. And this player is fighting HARD right now. Me gusta.

I've long been thinking that it would make sense for e.g. US+EU to fund AMD just in order to get some actual competition going.

But would they have the same incentive to take risks? I hear you -- I want them to do well too, and keep making cool things, but giving them too much help may kill the golden eggs. Or something.

Re: All AMD ThreadRipper CPU's will have 64 PCIe Lanes

#14
post #6

I was of the opinion that Intel will only face real competition when arm reaches parity with desktop class cpu. Nice to see AMD rise back up again. Hope Intel is not able to strong arm the oems like last time when AMD had design wins but Intel using anti competitive practice stalled its growth till it was able to catch-up and later go ahead.

I doubt we'll be seeing desktop ARM systems any time soon, especially high end workstation or enthusiast systems.

The problem is that the ARM64 architecture is completely different from x86-64, which almost every desktop application is compiled for exclusively.

Remember when Microsoft launched an ARM Surface? It had a special version of Windows, and almost nothing would run on it, as very few applications are compiled for Windows on ARM.

Re: All AMD ThreadRipper CPU's will have 64 PCIe Lanes

#15

We all benefit when AMD is a player. And this player is fighting HARD right now. Me gusta.

I've long been thinking that it would make sense for e.g. US+EU to fund AMD just in order to get some actual competition going.

> US+EU to fund AMD

IANAL, but I don't think this would be legal under WTO rules. It would be seen as an unfair advantage to AMD, and Intel could complain to the WTO about it.

Something similar happened recently when Brazil accused the Province of Quebec of funding Bomardier (who competes with Embraer). [0]

[0] http://www.reuters.com/article/us-brazil-canada-wto-idUSKBN1...

Re: All AMD ThreadRipper CPU's will have 64 PCIe Lanes

#16
post #10

The huge number of PCIe lanes is pretty exciting to me. For consumers, the limiting factor in PCs these days tends to be I/O. With this, you could have 4 PCIe M2 SSDs (that's a bit under 16Gbps bandwidth, assuming RAID0), and still have 44 lanes (the number in the top-end Intel CPU) to spare for GPUs and other peripherals.

Consumers tend to be limited by not having many PCIe SSDs in RAID0? Who are these people and what do they need galactic disk bandwidth for?

Enthusiasts tend to be gamers, and once you have a high end machine, most games tend to be limited on disk bandwidth, which affects load times.

By consumers, I meant enthusiasts, since that's who the Threadripper (X399) and Intel's Extreme Edition (X299) platforms are aimed at.

Re: All AMD ThreadRipper CPU's will have 64 PCIe Lanes

#17

The huge number of PCIe lanes is pretty exciting to me. For consumers, the limiting factor in PCs these days tends to be I/O. With this, you could have 4 PCIe M2 SSDs (that's a bit under 16Gbps bandwidth, assuming RAID0), and still have 44 lanes (the number in the top-end Intel CPU) to spare for GPUs and other peripherals.

Realistically speaking, what's the use case for something like that? And secondly, how much a mobo like that would cost?

Re: All AMD ThreadRipper CPU's will have 64 PCIe Lanes

#18
post #6

I was of the opinion that Intel will only face real competition when arm reaches parity with desktop class cpu. Nice to see AMD rise back up again. Hope Intel is not able to strong arm the oems like last time when AMD had design wins but Intel using anti competitive practice stalled its growth till it was able to catch-up and later go ahead.

I doubt we'll be seeing desktop ARM systems any time soon, especially high end workstation or enthusiast systems. The problem is that the ARM64 architecture is completely different from x86-64, which almost every desktop application is compiled for exclusively . Remember when Microsoft launched an ARM Surface? It had a special version of Windows, and almost nothing would run on it, as very few applications are compil…

My Raspberry Pi does almost all things that I would like to do with a computer. I could definitely imagine buying an ARM based computer.

Re: All AMD ThreadRipper CPU's will have 64 PCIe Lanes

#20
post #10

Earlier quoted context omitted.

Consumers tend to be limited by not having many PCIe SSDs in RAID0? Who are these people and what do they need galactic disk bandwidth for?

Enthusiasts tend to be gamers, and once you have a high end machine, most games tend to be limited on disk bandwidth, which affects load times. By consumers, I meant enthusiasts, since that's who the Threadripper (X399) and Intel's Extreme Edition (X299) platforms are aimed at.

That sounds frivolous versus a single high-end PCIe SSD. Wouldn't be surprised if the improvement in real-world game load times wasn't even perceptible.
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