Adrian (a.delete@this.acm.org) on April 6, 2021 12:01 pm wrote:
> anon (anon.delete@this.anon.com) on April 6, 2021 10:48 am wrote:
> > https://www.anandtech.com/show/16594/intel-3rd-gen-xeon-scalable-review
>
>
>
> Good:
> The cheaper SKUs are no longer crippled by disabling 1 of the 2 FMA units.
> No clock frequency penalty for AVX-256 and light AVX-512 instructions.
> > For heavy AVX-512 instructions, the clock frequency 80% of normal frequency.
> There are a few SKUs with good price/performance, e.g. Gold 6312U.
>
>
> Bad:
> The cheaper SKUs (Silver & Gold 5000) are crippled by low memory speed.
> Hopefully ARK contains mistakes, because it shows even some
> Gold 6000 SKUs as being crippled by low memory speed.
>
>
> Very bad:
> At the same number of active cores and the same power consumption, the clock frequency is much lower
> than for Epyc 7003, so the performance is much lower for anything that does not use AVX-512 (the Ice Lake
> IPC is a little lower than that of Zen 3, so at lower clock frequencies it does not have any chance).
> Also the maximum single-core turbo frequency is much lower than for Epyc 7003.
>
>
> Because of the previous facts, in their presentation Intel has wisely chosen to not show
> any comparisons with competitors, except the few that could take advantage of AVX-512.

The Ugly:
Fastest SKU doesn't even beat Graviton 2 on SPECINT.
Fastest 2S SKU is only 27% faster than 1S Ampere Altra despite double the threads, double the DRAM channels, 2.5-3 times the power and quadruple the list price...

Not being able to match standard Arm cores is just embarrassing.

Wilco