Performance Test: AWS Graviton4 Reduces EC2 Costs 40% vs. Intel Xeon 5th Gen

In a 12-week production benchmark across 14 workload types, AWS Graviton4-based EC2 instances delivered 40% lower total cost of ownership (TCO) than equivalent Intel Xeon 5th Gen (Emerald Rapids) instances, with only 3% of workloads showing performance regression. This isn't a marketing claim: we ran 1.2 million test iterations, measured p99 latency, throughput, memory bandwidth, and idle power draw, and validated results across three AWS regions. 📡 Hacker News Top Stories Right Now Ghostty is