In this Voices of Video episode, Juan Casal from Cires21 joins us to unpack why benchmarking often breaks down when video systems move from staging to real production. Average throughput rarely tells the full story. Variability, sustained load, jitter, clock accuracy, thermal limits, and pipeline interactions begin to dominate behavior at scale. Teams that optimize individual components often shift pressure downstream instead of improving the system as a whole. We explore why predictability matters more than peak performance, why worst-case behavior drives real deployment decisions, and how efficiency should be understood as operational headroom, not just cost per stream. For video engineers, platform architects, and infrastructure teams designing large-scale or performance-sensitive workflows, this conversation reframes benchmarking as a systems discipline, not a marketing exercise.