IntelServer CPU · 5th Gen Xeon Scalable
Xeon Platinum 8558U
Intel Xeon Platinum 8558U is a Emerald Rapids server processor with 48/96 cores/threads. Its best published SPEC CPU 2017 result works out to 433 SPECrate2017_int_base per socket.
Specifications
SPEC disclosure + Wikipedia| Architecture | Emerald Rapids |
|---|---|
| Process | Intel 7 |
| Cores / threads | 48/96 |
| Base clock | 2 GHz |
| Max boost | 4 GHz |
| L3 cache | 260 MB |
| TDP | 300 W |
| Socket | LGA 4677 |
| Max sockets | 1S |
| Memory | 8-ch DDR5 |
| System availability | Feb 2024 Median hardware availability date of the published SPEC results |
SPEC CPU 2017 result
Best of 13 published| SPECrate®2017_int_base per socket | 433 Derived by HardwareLadder: system result ÷ chips. Not an official SPEC metric. |
|---|---|
| SPECrate®2017_int_base (system) | 433 |
| Chips in tested system | 1 |
| Tested system | ASUSTeK Computer Inc. — ASUS RS720-E11-RS12U (2.00 GHz, Intel Xeon Platinum 8558U) |
| Published | Jun 2024 |
| Published results for this CPU | 13 |
Full result disclosure on spec.org. SPEC®, SPECrate®, and SPEC CPU® are registered trademarks of the Standard Performance Evaluation Corporation. Result retrieved from www.spec.org on 2026-09-23.