benchmark-smallpt KVM testing on Ubuntu 20.04 via the Phoronix Test Suite. C5a.24XL-1: Processor: AMD EPYC 7R32 (48 Cores / 96 Threads), Motherboard: Amazon EC2 c5a.24xlarge (1.0 BIOS), Chipset: Intel 440FX 82441FX PMC, Memory: 1 x 192 GB DDR4-2933MT/s, Disk: 107GB Amazon Elastic Block Store, Network: Amazon Elastic OS: Ubuntu 20.04, Kernel: 5.8.0-1041-aws (x86_64), Compiler: GCC 9.3.0, File-System: ext4, System Layer: KVM C5a.24XL-2: Processor: AMD EPYC 7R32 (48 Cores / 96 Threads), Motherboard: Amazon EC2 c5a.24xlarge (1.0 BIOS), Chipset: Intel 440FX 82441FX PMC, Memory: 1 x 192 GB DDR4-2933MT/s, Disk: 107GB Amazon Elastic Block Store, Network: Amazon Elastic OS: Ubuntu 20.04, Kernel: 5.8.0-1041-aws (x86_64), Compiler: GCC 9.3.0, File-System: ext4, System Layer: KVM Smallpt 1.0 Global Illumination Renderer; 128 Samples Seconds < Lower Is Better C5a.24XL-1 . 2.464 |========================================================== C5a.24XL-2 . 2.515 |===========================================================