News Talking Threadripper 3990X With AMD's Robert Hallock

[Admin]

AMD shared a few additional details about the Threadripper 3990X at CES 2020.

Talking Threadripper 3990X With AMD's Robert Hallock : Read more

 

[GustavoVanni]

All 3rd gen Ryzen Threadrippers are 280W TDP CPUs.
Not 180W as said in the article.
https://www.amd.com/en/products/cpu/amd-ryzen-threadripper-3990x

 

[PaulAlcorn]

All 3rd gen Ryzen Threadrippers are 280W TDP CPUs.
Not 180W as said in the article.
https://www.amd.com/en/products/cpu/amd-ryzen-threadripper-3990x

Good eye! Thanks, fixed (Ouch, what a noobie mistake)

 

[bit_user]

Nice interview, @PaulAlcorn . I like how you hammered on memory bottlenecks - that would be my concern about running a 64-core threadripper.

If Hallock's statements are taken at face value, then I'd guess where Epyc's 8-channels really come into play are:

1. Dual-CPU setups, where you could actually have more than 64 cores beating on a single CPU's memory.
2. Servers with high I/O load - such as from NVMe drives, high-density networking setups, or even GPU/AI accelerators. These devices all tend to work mainly to/from buffers in RAM.

Still, I'm skeptical that a great number of workloads wouldn't scale better to 64 cores, with 8-channel memory. I look forward to Threadripper memory overclocking benchmarks hopefully shedding more light onto this situation.

Where I think a 48-core Threadripper could make sense is specifically for workloads that do hit bottlenecks at 64-cores. In those cases, 48 cores should offer a bit more performance than 32, but would be more cost-effective and perhaps also more power-efficient.