Sunday, March 26th 2023
AMD Hybrid Phoenix APU Comes With Performance and Efficiency Cores
According to the latest leak, AMD's upcoming Phoenix accelerated processing units (APUs) could feature a hybrid design, featuring Performance and Efficiency cores. While there are no precise details, the latest AMD processor programming guide, leaked online, clearly marks these as two types of cores, most likely standard Zen 4 and energy-efficient Zen 4c cores.
These two set of cores will features a different feature set, and the latest document gives software designers guidelines. Such hybrid CPU design, similar to ARM's BIG.little architecture, will allow AMD to be more competitive with Intel's similar P- and E-core design, allowing it to achieve certain performance levels while also maintaining power efficiency.Last week, AMD's alleged Phoenix 2 APU has been spotted with such hybrid design, but the recent leak suggest that such similar, or same design, could be coming with AMD Phoenix APUs that are coming this year. AMD's Zen 4c cores were only mentioned with AMD's EPYC "Bergamo" CPUs, so it is quite interesting to see them implemented in other market segments as well.
Sources:
InstLatX64 Twitter, via Videocardz
These two set of cores will features a different feature set, and the latest document gives software designers guidelines. Such hybrid CPU design, similar to ARM's BIG.little architecture, will allow AMD to be more competitive with Intel's similar P- and E-core design, allowing it to achieve certain performance levels while also maintaining power efficiency.Last week, AMD's alleged Phoenix 2 APU has been spotted with such hybrid design, but the recent leak suggest that such similar, or same design, could be coming with AMD Phoenix APUs that are coming this year. AMD's Zen 4c cores were only mentioned with AMD's EPYC "Bergamo" CPUs, so it is quite interesting to see them implemented in other market segments as well.
39 Comments on AMD Hybrid Phoenix APU Comes With Performance and Efficiency Cores
Would love to see a 2P+4E super low power SoC for tablet/hybrid devices. Maybe even one for a future Surface Neo - but that's double the wishful thinking.
Which makes sense, since Intel designed their p-cores to be power efficient as well, but a lot of their die area goes to resources that enable high clock speed, and once a few cores reach a high clock speed there's not enough power or cooling for the others to reach it. Smartphones have the same problem, only they reach their power and thermal limits much more easily, which probably explains why many smartphone processors have had e-cores for years.
I doubt we'd get this, and instead the cutting of cache being just a power improvement where for most workloads most users wouldn't notice the difference, especially on lower end parts.
APU or SOC is where hybrids matters, tablets, AIO, HTPC ... et caetera
Thread count really
I wouldn't call single thread a core especially one that turbos at 4.3 lol
AMD issue is they have the thread count issue is frequencies are lower on real cores because all 16 are real cores/ performance cores not e-threads.
At 16 cores amd is not far behind and I'm not sure why they would bother for this big/little stuff on desktop.
www.techpowerup.com/290599/amd-readying-16-core-zen-4-ccds-exclusively-for-the-client-segment-with-an-answer-to-intel-e-cores
Maybe AMD continued to work on that concept, which we'd call "clusters" of cores today. One Zen 4 core plus one or two Zen 4c cores in a cluster with shared L2 cache may be a good idea - that depends on many implementation details of course. For one, the scheduler can quickly move execution of a software thread between the two types of cores without wasting the contents of L2.
I Hope they never go 100% Hybrid, and leave the option to go with a relatively high number of full size cores in the future.
Intel's desperate
AMD not so much
Why depend on win-11 to optimize big little nonsense
Most normal people reduce background crap anyway so little is not needed.
For a 15W ultraportable, I'd rather have 2P+8E over regular 4C/8T stuff we're accustomed to seeing.
I would bet an AMD 8 Zen 4 + 8 Zen 4c hybrid would easily beat 13700K where the 7700X gets beaten currently. It would probably make the 7900X look a waste of effort too.
Hard to imagine what would happen when Zen4c is introduced to the game.
IMC's where not a issue; even the 2700X managed to run at 3466Mhz out of the 2900Mhz stock.
I could further improve performance by manually lowering the sub timings too.
Maybe you should check your MB 's QVL list