epyc

My brother is looking at a dual-Epyc workstation (2x 64 cores, 256 GB+ RAM, £20k+) and I'm looking to better advise him, so have a few questions. First, how much is the performance difference between quad-channel and octo-channel RAM? Second, how much is the added latency of one CPU accessing...

On AMD chips a CCX unit is 8 cores. All Ryzen, Threadripper, and Epyc CPUs are built around this. The performance differnece between the Ryzen 3100 and the Ryzen 3300 shows the importance of all the cores being on the same CCX. When creating an 8 (16 including HT) core VM, can you force all 8...

Linus Tech Tips has an interesting video about the problems they had when they maxxed out the PCIe lanes on their Epyc server with umpteen NVME drives TLDR There are major performance issues; it's all too fast and the bandwidth is overloaded. I'm wondering if Intel solutions have the same...

I'm looking at the low-end Epyc CPUs - e.g. the 7262 - and they seem price-competitive with Intel's desktop CPUs (e.g. the 9900) and I'm wondering if with their huge L3 caches they might be performance-competitive if overclocked. Has anyone tried it?

I was just looking at Tyan and Supermicro motherboards and noticed that if RAM is the issue, then Xeon is the clear winner: Epyc motherboards seem to be limited to 4 TB of RAM whereas Xeon motherboards go up to 16 TB. So there you have it; now the question is, why would you want 4 TB RAM, let...

How is it? Come on, some mad idiot must have done it, right?

Assuming I have identified the need for a 32 core 64 thread CPU, why would I choose the 2990WX and why would I choose one of the 75xx or 76xx series?

Paging @Kaapstad ! One of the plus points of Threadripper - and Epyc - is the large number of PCI Express lanes. I would like to see someone test the effect of this with multiple GPUs, both Radeon and Geforce, in 2, 3, and 4 card configurations. I suspect that there will be a modest difference...