Mobile is the new PC and AArch64 is the new x64

Joakim dlang at joakim.fea.st
Tue Nov 13 21:30:38 UTC 2018


On Tuesday, 13 November 2018 at 21:10:08 UTC, Rubn wrote:
> On Tuesday, 13 November 2018 at 17:41:31 UTC, Joakim wrote:
>> On Saturday, 10 November 2018 at 11:45:22 UTC, Rubn wrote:
>>> On Saturday, 10 November 2018 at 07:29:17 UTC, Joakim wrote:
>>>> [...]
>>>
>>> Not really that impressive, my desktop i5-2500k from like 8 
>>> years ago is still faster than the CPU in last years Macbook 
>>> pro. Intel has been stagnate with their 14nm processors. Even 
>>> this years CPUs is still based on the same architecture as 
>>> their CPU from 2-3 years ago.
>>
>> No, benchmarks show the mobile i7 in last year's MBP as faster 
>> than your old desktop core i5, so the iPad Pro is faster than 
>> your desktop. :P Of course, the TDP of your desktop i5 is 
>> twice the mobile i7 and almost 10 times the A12X in the new 
>> iPad Pro, so Apple completely blows away Intel on the 
>> performance-to-power-dissipation ratio.
>
> Which benchmarks did you look at, cause I have mine overclocked 
> past 4 GHz.

The same Geekbench site as in the iPad Pro article usually has 
the MBP i7 ahead:

https://browser.geekbench.com/v4/cpu/search?utf8=✓&q=2500k
https://browser.geekbench.com/v4/cpu/search?utf8=✓&q=7820hq

> Not faster than my desktop where it counts, at least for me 
> (the gpu). Nothing really needs that much more power for CPU, 
> and single thread performance hasn't gone up that much.
>
>>> With Ryzen we're expected to see a CPU next year with 64 
>>> cores and 128 threads at 7nm.
>>
>> There are 64-bit ARM workstations and server cores if you want 
>> that:
>>
>> https://www.anandtech.com/show/12571/gigabyte-thunderxstation-cavium-thunderx2-socs
>
> Don't think it would compare in terms of performance. As even 
> that new fancy ipad pro CPU isn't anywhere near a current-day 
> desktop CPU.

Did you read the link? That's not an iPad, but a workstation with 
an AArch64 server CPU, similar to the Ryzen you mentioned.


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