Intel 5th Gen Xeon Performance Benchmarks: Impressive Efficiency Gains With "Optimized Power Mode"

For H.265 video encoding with Kvazaar that is multi-threaded, there was a small hit to the raw performance when using Optimized Power Mode while the CPU power consumption dropped by 50 some Watts and in turn the performance-per-Watt increasing by around 7%.

With SVT-AV1 for AV1 video encoding the raw performance in Optimized Power Mode dropped by 10% but in turn the CPU power consumption was around 40 Watts lower on average with the 2P setup that in turn led to the performance-per-Watt being improved by around 10% for this flagship Emerald Rapids processor configuration.

For those eyeing Emerald Rapids for build servers, compiling the Linux x86_64 kernel with all available modules led to roughly the same performance for this build configuration utilizing all available CPU threads while the Optimized Power Mode allowed the average power consumption to be reduced by around 4%.

Building LLVM with the Ninja build system led to similar build times but with a rather impressive reduction in CPU power use thanks to the Optimized Power Mode with 5th Gen Xeon.