AmpereOne: Cores Are the New MHz
jeffgeerling.com
AmpereOne: Cores Are the New MHz
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Re: AmpereOne: Cores Are the New MHz
#2Weird, but this makes me thing X86-64 might actually be better?
It isn't mentioned anywhere in __this__ article, but the power draw of that chip is 276W. I got this from Phoronix [1]:
> The AmpereOne A192-32X boasts 192 AmpereOne cores, a 3.2GHz clock frequency, a rated 276 Watt usage power
Which is interesting because it's almost half of AMD's 192-core offering [2].
Why is this interesting? the AMD offering draws a little less than double the wattage but has hyper-threading (!!!) meaning you get 384 threads... So this means that AMD is essentially on par with ARM cpus (at least with Ampere's ARM cpus) in terms of power efficiency... Maybe a little better.
I'd be more inclined to think that AMD is the king/queen of power efficiency in the datacenter rather than ARM/Ampere [3].
notes:
[1]: https://www.phoronix.com/review/ampereone-a192-32x
[2]: https://www.youtube.com/watch?v=S-NbCPEgP1A
[3]: regarding Graviton/Axiom or "alleged" server-class apple silicon... Their power draw is essentially irrelevant as they're all claim that cannot be tested and evaluated independently, so they don't count in my opinion.
Re: AmpereOne: Cores Are the New MHz
#3Weird, but this makes me thing X86-64 might actually be better? It isn't mentioned anywhere in __this__ article, but the power draw of that chip is 276W. I got this from Phoronix [1]: > The AmpereOne A192-32X boasts 192 AmpereOne cores, a 3.2GHz clock frequency, a rated 276 Watt usage power Which is interesting because it's almost half of AMD's 192-core offering [2]. Why is this interesting? the AMD offering draws a…
Last time I looked at Ampere it was way less power hub but then the competition. EPYC is over 250W at idle!
Off the top of my head, the Ampere 128 core was 250W at max load. Big difference.
Only issue I had was cache size, and you could only buy them from NewEgg.
Oh… and the dual socket gigabyte board had the sockets too close together that I’d you put a big ass heat sink and fan, the outlet of one fan will go straight into the inlet of the other!
Re: AmpereOne: Cores Are the New MHz
#4Weird, but this makes me thing X86-64 might actually be better? It isn't mentioned anywhere in __this__ article, but the power draw of that chip is 276W. I got this from Phoronix [1]: > The AmpereOne A192-32X boasts 192 AmpereOne cores, a 3.2GHz clock frequency, a rated 276 Watt usage power Which is interesting because it's almost half of AMD's 192-core offering [2]. Why is this interesting? the AMD offering draws a…
> has hyper-threading (!!!) meaning you get 384 threads
isn't SMT turned off in shared-tenant scenarios now due to security concerns
Re: AmpereOne: Cores Are the New MHz
#5Weird, but this makes me thing X86-64 might actually be better? It isn't mentioned anywhere in __this__ article, but the power draw of that chip is 276W. I got this from Phoronix [1]: > The AmpereOne A192-32X boasts 192 AmpereOne cores, a 3.2GHz clock frequency, a rated 276 Watt usage power Which is interesting because it's almost half of AMD's 192-core offering [2]. Why is this interesting? the AMD offering draws a…
> but has hyper-threading (!!!) meaning you get 384 threads... So this means that AMD is essentially on par with ARM cpus
So you’re saying ‘essentially’ an AMD thread is the same as an ampere core?!
Re: AmpereOne: Cores Are the New MHz
#6Weird, but this makes me thing X86-64 might actually be better? It isn't mentioned anywhere in __this__ article, but the power draw of that chip is 276W. I got this from Phoronix [1]: > The AmpereOne A192-32X boasts 192 AmpereOne cores, a 3.2GHz clock frequency, a rated 276 Watt usage power Which is interesting because it's almost half of AMD's 192-core offering [2]. Why is this interesting? the AMD offering draws a…
Hyperthreading doesn't even get close to doubling actual performance, it depends on the workload but AMDs Zen5 gains about 15% from HT on average according to Phoronix's benchmarks.
Re: AmpereOne: Cores Are the New MHz
#7Weird, but this makes me thing X86-64 might actually be better? It isn't mentioned anywhere in __this__ article, but the power draw of that chip is 276W. I got this from Phoronix [1]: > The AmpereOne A192-32X boasts 192 AmpereOne cores, a 3.2GHz clock frequency, a rated 276 Watt usage power Which is interesting because it's almost half of AMD's 192-core offering [2]. Why is this interesting? the AMD offering draws a…
> but has hyper-threading (!!!) meaning you get 384 threads... So this means that AMD is essentially on par with ARM cpus So you’re saying ‘essentially’ an AMD thread is the same as an ampere core?!
Always has been. Most ARM cores are closer to x86 E-cores.
Re: AmpereOne: Cores Are the New MHz
#8Weird, but this makes me thing X86-64 might actually be better? It isn't mentioned anywhere in __this__ article, but the power draw of that chip is 276W. I got this from Phoronix [1]: > The AmpereOne A192-32X boasts 192 AmpereOne cores, a 3.2GHz clock frequency, a rated 276 Watt usage power Which is interesting because it's almost half of AMD's 192-core offering [2]. Why is this interesting? the AMD offering draws a…
> has hyper-threading (!!!) meaning you get 384 threads isn't SMT turned off in shared-tenant scenarios now due to security concerns
No, you can use core scheduling to assign both threads to the same tenant.
Re: AmpereOne: Cores Are the New MHz
#9Weird, but this makes me thing X86-64 might actually be better? It isn't mentioned anywhere in __this__ article, but the power draw of that chip is 276W. I got this from Phoronix [1]: > The AmpereOne A192-32X boasts 192 AmpereOne cores, a 3.2GHz clock frequency, a rated 276 Watt usage power Which is interesting because it's almost half of AMD's 192-core offering [2]. Why is this interesting? the AMD offering draws a…
> has hyper-threading (!!!) meaning you get 384 threads isn't SMT turned off in shared-tenant scenarios now due to security concerns
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Re: AmpereOne: Cores Are the New MHz
#10Weird, but this makes me thing X86-64 might actually be better? It isn't mentioned anywhere in __this__ article, but the power draw of that chip is 276W. I got this from Phoronix [1]: > The AmpereOne A192-32X boasts 192 AmpereOne cores, a 3.2GHz clock frequency, a rated 276 Watt usage power Which is interesting because it's almost half of AMD's 192-core offering [2]. Why is this interesting? the AMD offering draws a…
Last time I looked at Ampere it was way less power hub but then the competition. EPYC is over 250W at idle! Off the top of my head, the Ampere 128 core was 250W at max load. Big difference. Only issue I had was cache size, and you could only buy them from NewEgg. Oh… and the dual socket gigabyte board had the sockets too close together that I’d you put a big ass heat sink and fan, the outlet of one fan will go straig…
I think you might be comparing your memories of Ampere's CPU power draw to either a full Epyc server's wall power draw or stated TDP. The 128 core EPYC 9754 in the chart linked above has a min of 10 W and a max draw of 397 W even though it outperforms the new 192 core variant AmpereOne A192-32X which had a min of 102 W and a max of 401 W.
The min on the A192 does seem anonymously high though. That said, even the M128-30 has a min of 21 W or about twice that of the AmpereOne.