AWS Launches Graviton4-Powered Memory-Optimized EC2 X8g Instances for High-Memory Workloads
Briefly

Compared to the previous generation (X2gd), the EC2 X8g instances offer 3x more memory, 3x more vCPUs, 40 Gbps EBS bandwidth, and 50 Gbps network bandwidth.
The Graviton4 processors inside the X8g instances have twice the L2 cache per core as the Graviton2 processors, 160% higher memory bandwidth, and 60% better compute performance.
Read at InfoQ
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