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-   -   Ampere Altra (https://www.mersenneforum.org/showthread.php?t=26331)

henryzz 2020-12-22 16:58

Ampere Altra
 
This looks like a very impressive Arm CPU. 80 N1 cores at 3.3 GHz. Shame about the $4050 price tag. Maybe 32 cores at 1.7 GHz for $800 is better value.

[url]https://www.anandtech.com/show/16315/the-ampere-altra-review[/url]

nordi 2020-12-22 21:35

[QUOTE=henryzz;566993]Maybe 32 cores at 1.7 GHz for $800 is better value.[/QUOTE]
That was also my thought, especially considering the 45W TDP and 8 memory channels! The same money for an AMD Epyc will get you half the cores at around twice the clockspeed (=same performance?), but the power usage is ~100W higher.

M344587487 2020-12-23 00:48

I'm incredibly skeptical that a 32 core 1.7GHz 45W TDP Arm part can compete in performance with a 16 core Zen 2 part with a much higher TDP, at least in heavy workloads like Prime95 I can't see how it's possible (on an efficiency basis sure, but not throughput). Even if the Altra is on 5nm TSMC and granted a 16 core Zen 2 Epyc part is on the inefficient end of the spectrum relative to other Epyc 2 parts, you'll still need to show me hard stats before I'd believe it. Other workloads may fare better so it's worth watching.



$800 is good value but it's just for the chip, I wonder what a complete setup costs and if there'll be a cloud option.


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