Re:Apple Books TSMC’s Entire 5nm Production Capability
by webmobdev on Sunday September 20, 2020 @12:36PM
(#24534988)
> We're getting to the point where Intel is no longer able to deliver significant performance improvements inside a low TDP.
But why are we comparing with Intel chips, when it is AMD chips that have been more successful in delivering higher performance with lower TDPs?
Re:Apple Books TSMC’s Entire 5nm Production Capability
by GeekyBear on Sunday September 20, 2020 @01:04PM
(#24535258)
The numbers from those performance tests aren't all good news for AMD.
>Against the x86 competition, Tiger Lake leaves AMD’s Zen2-based Renoir in the dust when it comes to single-threaded performance.
>[In multicore] AMD’s platform scales incredibly well in execution-bound workloads as it fully takes advantage of double the core count. In more memory-heavy workloads, the Zen2 cores here seem to be lacking sufficient resources and scale below the performance of Intel’s 4-core designs in some workloads.
We'll have to see what the testing figures look like after Zen3 and Apple Silicon ship.
Re:Apple Books TSMC’s Entire 5nm Production Capability
by webmobdev on Tuesday September 22, 2020 @07:06PM
(#24561063)
Sure, but we are talking about ARM chips vs x86 chips, and so it would be more meaningful to compare ARM chips with AMD chips as AMD has made better strides than Intel in lowering TDP. Everyone would be more interested in how Apple ARM chips compare with AMD mobile and desktop Ryzen chips.
Anandtech's Tiger Lake deep dive compares performance gains when running SPEC at a 15 watt TDP and a 28 watt TDP.
>At first glance, the Tiger Lake system performs quite well versus its predecessor, but that’s mostly only in the 28W mode. At 15W, the generational boost, while it is there, isn’t that significant.
https://www.anandtech.com/show/16084/intel-tiger-lake-review...
We're getting to the point where Intel is no longer able to deliver significant performance improvements inside a low TDP.
This bodes well for an architecture that has much better performance per watt.
>Here we present the 15W vs 28W configuration figures for the single-threaded workloads, which do see a jump in performance by going to the higher TDP configuration, meaning [Tiger Lake] is thermally constrained at 15W even in ST workloads.
Comparing it against Apple’s A13, things aren’t looking so rosy as the Intel CPU barely outmatches it even though it uses several times more power, which doesn’t bode well for Intel once Apple releases its “Apple Silicon” Macbooks.
https://www.anandtech.com/show/16084/intel-tiger-lake-review...