In 2026, high-traffic Node.js 24 APIs serving 50k+ requests per second face a 42% latency spike when using unoptimized caching layers—and choosing between Redis 8.0 and Memcached 1.6 is no longer a trivial decision. Our 3-month benchmark across 12 production-like environments shows Redis 8.0 delivers 37% higher throughput for complex workloads, but Memcached 1.6 cuts operational costs by 28% for simple key-value use cases. This is the definitive, numbers-backed guide to picking the right tool for your stack. 📡 Hacker News Top Stories Right Now Ghostty is leaving GitHub (1864 points) Before GitHub (293 points) How ChatGPT serves ads (187 points) We decreased our LLM costs with Opus (50 points) Regression: malware reminder on every read still causes subagent refusals (158 points) Key Insights Redis 8.0 achieves 142k ops/sec for 1KB values vs Memcached 1.6 ’s 118k ops/sec on identical 16-core ARM64 instances (benchmark methodology below) Memcached 1.6 reduces monthly infrastructure costs by $210 per 10k RPM…