To be fair, AMD has 20 usable PCIe lanes coming from the CPU (stated use case: 16x for GPU + 4x for NVMe). Intel only has 16. Both have another "4 lanes" that are only used by their chipsets.
In the Intel configuration, one fast NVMe 4x and one 10GbE adapter are always going to be in contention, nevermind 2 fast NVMe drives.
This really only hurts on Intel U series packages ("OPI" = on package DMI 3.0), where the CPU exposes 0 PCIe lanes and has all 10-20 PCIe lanes coming from the chipset. TB3, NVMe, dGPU, Ethernet, WiFi, SD card reader, etc, all fighting for that 4x connection.
So we're at Broadwell Refresh, Refresh, Refresh, Refresh now then? It's sad how stagnant Intel has gotten. Competition from AMD wasn't exactly fierce when they managed to to eek ~25% more performance when they moved along through Sandy Lake to Broadwell but we've more or less been at a standstill during a slightly longer time period now (aside from core count increases at the very top end of the product stack). They've got all the talent and resources in the world, but are really intent on squandering them along with the massive technological lead they punted away in the process. We'll have to look to Zen2 for excitement I guess.
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Irata - Thursday, May 16, 2019 - link
And now we know why HT is disabled on almost all 9th gen Core CPU. It seems that this was Intel's "fix" for Zombieload et al.rhx123 - Tuesday, April 23, 2019 - link
So much coming off the chipset these days and still only connected by DMI 3.0, what a sham.Jorgp2 - Tuesday, April 23, 2019 - link
That's the same for AMDrhx123 - Tuesday, April 23, 2019 - link
No TB3 on AMD, not that it excuses them, but it migitates the impact.HStewart - Tuesday, April 23, 2019 - link
AMD will eventually have TB3 because USB 4jeremyshaw - Tuesday, April 23, 2019 - link
To be fair, AMD has 20 usable PCIe lanes coming from the CPU (stated use case: 16x for GPU + 4x for NVMe). Intel only has 16. Both have another "4 lanes" that are only used by their chipsets.In the Intel configuration, one fast NVMe 4x and one 10GbE adapter are always going to be in contention, nevermind 2 fast NVMe drives.
This really only hurts on Intel U series packages ("OPI" = on package DMI 3.0), where the CPU exposes 0 PCIe lanes and has all 10-20 PCIe lanes coming from the chipset. TB3, NVMe, dGPU, Ethernet, WiFi, SD card reader, etc, all fighting for that 4x connection.
Irata - Tuesday, April 23, 2019 - link
Nope. AMD does offer more PCIe lanes directly from the CPU.penev91 - Tuesday, April 23, 2019 - link
It's something ¯\_(ツ)_/¯nismotigerwvu - Tuesday, April 23, 2019 - link
So we're at Broadwell Refresh, Refresh, Refresh, Refresh now then? It's sad how stagnant Intel has gotten. Competition from AMD wasn't exactly fierce when they managed to to eek ~25% more performance when they moved along through Sandy Lake to Broadwell but we've more or less been at a standstill during a slightly longer time period now (aside from core count increases at the very top end of the product stack). They've got all the talent and resources in the world, but are really intent on squandering them along with the massive technological lead they punted away in the process. We'll have to look to Zen2 for excitement I guess.jeremyshaw - Tuesday, April 23, 2019 - link
In which world does 14nm = Broadwell?Now I have to wonder how many people still believe all modern Intel CPUs are hotted up P6 cores...