You sound like my 80- year old grandma, no offense.
I know your knowledge is usually very poor but I expected you know how to use google. I overestimated you again (last time you stated server market is bigger than smartphone market, when reality is smarphones are 7x bigger than servers). Here...
Are you kidding?
IPC is measured in GB5 from A7 up to A13. And now also A14.
IPC of Nuvia Phoenix is known if we take the lowest boundary of blue blob as minimum
Chief Apple architect Gerard Williams III is CEO in his Nuvia, he took a lot of people with him, also known fact
uarch of Apple...
Maybe you missed the part where Intel uses for L3 cache lower uncore frequency as well.
Maybe you missed the part where Apple big cores runs at 2.6 GHz, little cores at 1.8 GHz and GPU < 1 GHz, so L3 SLC cache also runs with some multiplier. Apple's L3 cache is shared with GPU and NPU as well...
Really? You don't know that you can get CPU performance via CPU simulation? You can basically run any code on the CPU model. It just takes more time of course. How do you think ARM optimized A78 for efficiency and X1 for high performance X1? They run simulations over night with hundreds of...
No offense, but you have no clue what you talking about here. Jim Keller said that CPU uarch need ground up design every 4 years and if possible every 2 years. Where did he get that? Wasn't he working at Apple's CPU design team? Yes, he was.
Another confirmation of A15 being BIG uarch change is...
Jeez, you are right. A14 has almost doubled GPU performance. That's the answer to people how doubted Apple can't replace Radeons. Not only replace, but Apple can outperform Radeons. If Apple will use HBM2 memory, they can use huge GPU without being bandwidth bottlenecked like Renoir. And Fujitsu...
So you claim that Epyc has 321.7 pts/GHz => higher IPC than Ice Lake. Show me at least 3 good reviews where they claim that Ice Lake has lower IPC than Zen2. AFAIK there is no such a crazy conclusion. Again, I admit that down clocked CPU, which Epyc @ 3.4 GHz and Renoir @ 4.2 are, can provide...
You claim that Renoir has 1254 pts @ 1.8 GHz ..... resulting in 697 pts/GHz. 16-core Ryzen 3950X has only 286 pts/GHz. So you claim that Renoir has 2.4x higher IPC? Really? Why AMD bother with Zen3 +15% IPC development when they can install Renoir everywhere and go 10-year vacation?
You claim...
Ok, I agree AMD is doing great today. But then what are those missing parts? AMD cannot solve missing AVX512 by adding more cores forever. Intel's next year Sapphire Rapids with DDR5 and chiplet/EMIB design will delete AMD's multicore advatage. And than what? Intel has AVX512 and new 8192-bit...
Nice analysis at RWT and I agree with #2 scenario: A14 is small IPC/uarch jump.
According to my IPC table the evolution of 4xALU Apple line up is like this:
A7 Cyclone .... first 4xALU ARM core on the world, 2013, same year as 4xALU Intel Haswell, IPC similar to Sandy Bridge
A8 Typhoon ...
OK, that means the lowest IPC uplift in Apple's history is real (5%).
On the other hand it's positive to have similarity with A10. Because A10 was the last 4xALU core and next A11 was completely new uarch with 6xALU (1st on the world). It looks like Apple has pattern of ground up uarch redesign...
Fair point. There is scheduler task shuffling and OS boost control in play. Nothing's perfect.
Problem is that people tried to say those Apple A13's +82% IPC advantage is due to different OS. Which is non-sense. I accept that Win10 can hurt performance by 8% in compare to Linux like in your...
I used 2.8 GHz for my IPC calculation ................... this means 11% IPC increase from A13.
But with 3 GHz and 1583 pts = 527 pts/GHz ........ this means 5% IPC increase only.
That would be the lowest IPC gain in Apple's history.The lowest IPC gain had A10 Hurricane core with only 8%...
People wanted to cheat. I remember one guy downclocked his x86 CPU to 2.6 GHz similar to Apple, probably boosted uncore and DDR mem to maximum and claimed score higher about +20% than my table. This is cheating. Apple core can also provide higher IPC at 1 GHz. GB database is full of tweaked and...
So Intel can develop CPU with double IPC to Comet Lake for 3 GHz but they don't want to? Jezeez, wake up man. Do you remember when Intel tried to enter tablet and smart phone market with Atom cores? What a disaster it was! In-order 2xALU core with half IPC with terrible power consumption in...
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