Fastest Granite Rapids SKU benchmark (#656)

Author: sbryngelson

docs/documentation/expectedPerformance.md

@@ -32,6 +32,7 @@ These are reported as (X/Y cores), where X is the used cores, and Y is the total
 | NVIDIA A30                |                           | GPU           | 1 GPU        | 1.1              | NVHPC 24.1           | GT Rogues Gallery  |
 | AMD MI250X                |                           | GPU           | 1 _GCD_*     | 1.1              | CCE 16.0.1           | OLCF Frontier |
 | AMD MI100                 |                           | GPU           | 1 GPU        | 1.4              | CCE 16.0.1           | Cray internal system |
+| Intel Xeon 6980P          | Granite Rapids            | CPU           | 128 cores    | 1.4              | Intel 2024.2         | Intel Endeavour   |
 | NVIDIA L40S               | FP32-only GPU             | GPU           | 1 GPU        | 1.7              | NVHPC 24.5           | GT ICE  |
 | AMD EPYC 9654             | Genoa                     | CPU           | 96 cores     | 1.7              | Intel 2021.9         | DOD Carpenter    |
 | Intel Xeon 6960P          | Granite Rapids            | CPU           | 72 cores     | 1.7              | Intel 2024.2         | Intel AI Cloud   |