When it comes to high-performance processors, x86 doesn't dare to be large in front of IBM's power. However, the power architecture ecology is not strong enough. IBM has completely opened the power instruction set, and recently launched power isa 3.1. The power 10 processor based on this instruction set is expected to be announced in August.
When it comes to IBM's power instruction set, it is also a CPU instruction set with a long history. Apple's early computers used power architecture. Now IBM's mainframe uses its own power processor. The latest generation is power 9, which can have up to 24 core 96 threads (power supports single core four thread technology), and the highest frequency can reach 3.3GHz.
At present, the first and second supercomputing of TOP500 uses Power9 processor and NVIDIA acceleration card, so the power processor is very powerful in terms of high performance.
At the ISSCC 2020 conference earlier this year,IBM released the latest version of power 9 processor details With a core area of up to 696 mm2( roughly 3-4 times the size of an ordinary desktop 8-core processor), it integrates 9.2 billion transistors at a frequency of 5.2 GHz, each with 128 KB L1 data cache ,128 instruction cache ,4 4MB L2eDRAM cache and 256 MB L3 cache.
The latest power 9 single core performance increases by 10%, the number of multi cores increases by 20% (from 10 cores to 12 cores), L2 cache increases by 33%, L3 cache doubles, L4 cache increases by 43%, all of which are to be realized under the same 14nm SOI process.
IBM recently released the power isa 3.1 instruction set,A new instruction prefix format is introduced, bf16 support is added, and a large number of new instructions are added, mainly to improve the AI and high-performance computing capabilities, and expand the support for more data types.
The first processor to use the power isa 3.1 instruction set will be power 10, which is expected to be officially unveiled at the hotchips 32 conference in mid August,The process technology should be upgraded to 7Nm, and the core number will continue to increase. At the same time, PCIe 5 and ddr5 will be added. After all, the power 10 based system will not be available until 2021.