El Capitan dominates TOP500 benchmarks, leading on HPL, HPCG, and HPL-MxP metrics

Lawrence Livermore National Laboratory/El Capitan

El Capitan maintained its position as the world's fastest supercomputer in the June 2025 TOP500 rankings, scoring highest on all three major benchmarks: HPL (1.742 exaflops), HPCG (17.41 petaflops), and HPL-MxP (16.7 exaflops). The results demonstrated the system's versatility across diverse computational workloads.

• HPL benchmark: 1.742 exaflops, demonstrating peak floating-point performance.
• HPCG benchmark: 17.41 petaflops, showing strong performance on realistic sparse linear algebra operations.
• HPL-MxP benchmark: 16.7 exaflops, demonstrating capability in mixed-precision calculations for AI applications.
• Energy efficiency of 58.9 gigaflops per watt confirms the effectiveness of HPE's fanless direct liquid cooling approach.