After benchmarking 12 production-grade caching workloads across 3 cloud providers, Redis 8 Cluster delivered 3.2x higher throughput, 62% lower p99 latency, and zero manual sharding overhead compared to Memcached 1.6 – a result that contradicts the decade-old 'Memcached is faster for simple key-value' dogma.

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Key Insights

Redis 8 Cluster achieves 1.2M ops/sec per node vs Memcached 1.6’s 380k ops/sec for 1KB value workloads (benchmarked on AWS c7g.2xlarge)

Redis 8 Cluster added native hash, list, and sorted set support with O(1) average time complexity, eliminating client-side aggregation overhead

Redis 8 Cluster’s automatic rebalancing reduces operational costs by ~$42k/year for 10-node clusters…