The Graviton 2 is a 7nm chip based on the ARM Neoverse N1 cores, these are somewhat comparable with the Cortex-A76. The chip has 64 cores and promises 40 percent better performance at a 20 percent lower cost than "comparable x86 processors". Graviton 2 uses a mesh fabric, has 1MB L2 per core, 32MB L3 cache, eight-channel DDR4-3200 support, and 64 PCIe lanes. It's a pretty big design too, word is that the chip has 30 billion transistors.
Below are some benchmark results provided by Amazon. These tests compare Graviton 2 versus the fifth-gen EC2 instances, which use the Intel 24-core Xeon Platinum 8175 processor.
All of these performance enhancements come together to give these new instances a significant performance benefit over the 5th generation (M5, C5, R5) of EC2 instances. Our initial benchmarks show the following per-vCPU performance improvements over the M5 instances:More details at Amazon.
SPECjvm® 2008: +43% (estimated) SPEC CPU® 2017 integer: +44% (estimated) SPEC CPU 2017 floating point: +24% (estimated) HTTPS load balancing with Nginx: +24% Memcached: +43% performance, at lower latency X.264 video encoding: +26% EDA simulation with Cadence Xcellium: +54%