The 63rd edition of the TOP500 reveals that Frontier has once again claimed the top spot, despite no longer being the only exascale machine on the list. Additionally, a new system has found its way into the Top 10.

The Frontier system at Oak Ridge National Laboratory in Tennessee, USA remains the most powerful system on the list with an HPL score of 1.206 EFlop/s. The system has a total of 8,699,904 combined CPU and GPU cores, an HPE Cray EX architecture that combines 3rd Gen AMD EPYC CPUs optimized for HPC and AI with AMD Instinct MI250X accelerators, and it relies on Cray's Slingshot 11 network for data transfer. On top of that, this machine has an impressive power efficiency rating of 52.93 GFlops/Watt - putting Frontier at the No. 13 spot on the GREEN500.

The 62nd edition of the TOP500 reveals that the Frontier system retains its top spot and is still the only exascale machine on the list. However, five new or upgraded systems have shaken up the Top 10.

Housed at the Oak Ridge National Laboratory (ORNL) in Tennessee, USA, Frontier leads the pack with an HPL score of 1.194 EFlop/s - unchanged from the June 2023 list. Frontier utilizes AMD EPYC 64C 2GHz processors and is based on the latest HPE Cray EX235a architecture. The system has a total of 8,699,904 combined CPU and GPU cores. Additionally, Frontier has an impressive power efficiency rating of 52.59 GFlops/watt and relies on HPE's Slingshot 11 network for data transfer.

Increasing its HPL score from 1.02 Eflop/s in November 2022 to an impressive 1.194 Eflop/s on this list, Frontier was able to improve upon its score after a stagnation between June 2022 and November 2022. Considering exascale was only a goal to aspire to just a few years ago, a roughly 17% increase here is an enormous success. Additionally, Frontier earned a score of 9.95 Eflop/s on the HLP-MxP benchmark, which measures performance for mixed-precision calculation. This is also an increase over the 7.94 EFlop/s that the system achieved on the previous list and nearly 10 times more powerful than the machine's HPL score. Frontier is based on the HPE Cray EX235a architecture and utilizes AMD EPYC 64C 2 GHz processors. It also has 8,699,904 cores and an incredible energy efficiency rating of 52.59 Gflops/watt. It also relies on gigabit ethernet for data transfer.

A leaked roadmap (that seems to be authored) by Giga Computing provides an interesting peak into the future of next generation enterprise-oriented CPUs and GPUs. TDP details of Intel, AMD and NVIDIA hardware are featured within the presentation slide - and all indications point to a trend of continued power consumption growth. Intel's server CPU lineups, including fourth generation Sapphire Rapids-SP and fifth-gen Emerald Rapids-SP Xeon chips, are projected to hit maximum TGPs of 350 W by mid-2024. Team Blue's sixth gen Granite Rapids is expected to arrive in the latter half of 2024, and Gigabyte's leaked roadmap points to a push into 500 W territories going forward into 2025.

AMD's Zen 5-based Turin server CPUs are expected to ship by the second half of 2024, and power consumption is estimated to hit a maximum of 600 W - representing a 50% increase over the Zen 4-based Genoa family. The 2024 NVIDIA PCIe GPU lineup is likely hitting TDPs of up to 500 W, it is rumored that these enterprise cards will be based on the Blackwell chip architecture - set to succeed current generation H100 "Hopper" PCIe accelerators (featuring 350-450 W TDPs). It is possible that AMD's Instinct-class PCIe accelerator family will become the direct competition, these cards are rated up to 400 W. The AMD Instinct MI250 OAM category has a maximum rating of 560 W. The NVIDIA Grace and Grace Hopper CPU Superchips are said to feature 600 W and 1000 W TDPs (respectively).