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ARM X3/A715/A510 CPU release: up to 12 cores, full 64-bit

via:快科技     time:2022/6/29 23:01:15     readed:73

Following the introduction of the ARMv9 instruction set for the next decade in March last year, ARM released the first generation of ARMV9-based cpus in May, including the Cortex-X2 and A710 cpus. Today, ARM has released the Cortex-X3, A715 and A510 Refresh ARMv9 products.

ARM发布Coretx-X3 /A715/A510 CPU:最大12核、全面迈向64位

This generation of Cortex processors is designed for smartphones, tablets, and laptops, so there are a lot of things to release, as well as the new DSU-110 core and size scheduling architecture, which can do up to 8+4+0 for a total of 12 cores.

First, the CPU as a whole, cortex-X3 and A715 are upgraded versions of the Cortex-X2 and A710 respectively, with peak performance improved by 25% and hybrid performance and energy efficiency improved by 20%.

It's worth noting that both Cortex-X3 and A715 have abandoned the AARCH32 instruction set in favor of a 64-bit architecture.

What about the old 32 bits? ARM also introduced A510 Refresh, also known as A510 V2 version, which not only improves performance and energy efficiency, but also supports up to 12 core architectures.It is also optionally compatible with the AARCH32 instruction set, but only in certain choices.

Overall, ARM is committed to making a full shift to 64-bit in the Cortex-X3, A715, and A510 V2 architectures, though it's not eliminating 32-bit altogether, leaving less and less space for 32-bit compatibility.

ARM发布Coretx-X3 /A715/A510 CPU:最大12核、全面迈向64位

The cortex-X3, A715, and A510 V2 CPU architectures have changed.

ARM发布Coretx-X3 /A715/A510 CPU:最大12核、全面迈向64位

ARM发布Coretx-X3 /A715/A510 CPU:最大12核、全面迈向64位

As a super-large core, the Cortex-X3 is focused on performance, and this generation of architecture has improved a lot. The decoder has increased from 5 to 6 instructions per cycle, out-of-order execution Windows from 288 to 320, integer ALU units from 4 to 6, and so on.

Among other things, the Cortex-X3's L2 cache capacity has been increased from 512KB to 1MB.

The ultimate change is a performance bump,It's 25% better than the previous Android flagship and 34% better than a laptop— — ARM's official performance comparison is a bit confusing, with many claims such as 22% and 28% performance improvement in this generation alone, and 11% improvement in IPC performance.

ARM发布Coretx-X3 /A715/A510 CPU:最大12核、全面迈向64位

Next, the architecture of A715 core does not pursue absolute performance, but pays more attention to energy efficiency, saving 20% energy consumption compared with A710 for the same performance, and improving 5% performance compared with A710 for the same power consumption.

In addition, due to the abandonment of aARCH32 instruction set, the area efficiency of A715 kernel is greatly increased, requiring only 1/4 of the area of A710. Although the overall performance is not greatly improved, the energy efficiency and area efficiency are greatly increased.

ARM发布Coretx-X3 /A715/A510 CPU:最大12核、全面迈向64位

Finally, the architecture of A510 small core. The current A510 V2 does not change much compared with the A510 in 2020. The focus is still on optimizing energy efficiency.The same performance power consumption is reduced by 5% and the frequency is increased by 5%, so the previous 1.8ghz frequency can now be increased to around 1.9ghz.

ARM发布Coretx-X3 /A715/A510 CPU:最大12核、全面迈向64位

There is also THE DSU-110, which is a new generation of core interconnection technology with a more flexible core collocation mode. In addition to 1+3+4, there are also 1+4+4, 2+2+4 and 8+4+0. The last configuration is for notebook such a high-performance platform.

The Cortex-X3, A715 and A510 V2 cores are optimized for more advanced processes, such as Samsung TSMC's 5nm and 4nm processes, and ARM provides developers with a convenient development platform and tool VFP for better simulation testing.

Finally, CPU architectures such as Cortex-X3, A715, and A510 V2 will be available as soon as the end of this year, and the Snapdragon 8 G2 will have a new architecture by the end of this year if there is no surprise.

ARM发布Coretx-X3 /A715/A510 CPU:最大12核、全面迈向64位

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