Xeon Gold 5420: specs and benchmarks
Summary
Intel started Xeon Gold 5420 sales 1 January 2023. This is desktop processor primarily aimed at professional systems. It has 28 cores and 56 threads, and is based on Intel 7 manufacturing technology, with a maximum frequency of 4100 MHz and a locked multiplier.
Compatibility-wise, this is FCLGA4677 processor with a TDP of 205 Watt. It supports DDR5-4400 memory.
Primary details
Xeon Gold 5420 processor market type (desktop or notebook), architecture, sales start time and pricing.
| Place in the ranking | not rated | |
| Place by popularity | not in top-100 | |
| Market segment | Server | |
| Release date | 1 January 2023 (1 year ago) |
Detailed specifications
Basic microprocessor parameters such as number of cores, number of threads, base frequency and turbo boost clock, lithography, cache size and multiplier lock state. These parameters can generally indicate CPU performance, but to be more precise you have to review its test results.
| Physical cores | 28 (Octacosa-Core) | |
| Threads | 56 | |
| Base clock speed | 2 GHz | of 4.7 GHz (FX-9590) |
| Boost clock speed | 4.1 GHz | of 50 MHz (i486DX-50) |
| L3 cache | 52.5 MB | of 1152 MB (EPYC 9684X) |
| Chip lithography | Intel 7 nm | of 3 nm (Apple M3 Max 16-Core) |
| Maximum core temperature | 84 °C | of 110 °C (Atom x7-E3950) |
| 64 bit support | - |
Compatibility
Information on Xeon Gold 5420 compatibility with other computer components and devices: motherboard (look for socket type), power supply unit (look for power consumption) etc. Useful when planning a future computer configuration or upgrading an existing one. Note that power consumption of some processors can well exceed their nominal TDP, even without overclocking. Some can even double their declared thermals given that the motherboard allows to tune the CPU power parameters.
| Socket | FCLGA4677 | |
| Power consumption (TDP) | 205 Watt | of 3100 ‑ 4500 (Ryzen 7 7435H) |
Technologies and extensions
Technological capabilities and additional instructions supported by Xeon Gold 5420. You'll probably need this information if you require some particular technology.
| Instruction set extensions | Intel® AMX, Intel® SSE4.2, Intel® AVX, Intel® AVX2, Intel® AVX-512 | |
| AES-NI | + | |
| Speed Shift | + | |
| Turbo Boost Technology | 2.0 | |
| Hyper-Threading Technology | + | |
| TSX | + | |
| Deep Learning Boost | + |
Security technologies
Processor technologies aimed at improving security, for example, by protecting against hacks.
| TXT | + | |
| EDB | + | |
| SGX | Yes with Intel® SPS | |
| OS Guard | + |
Virtualization technologies
Supported virtual machine optimization technologies. Some are specific to Intel only, some to AMD.
| VT-d | + | |
| VT-x | + | |
| EPT | + |
Memory specs
Types, maximum amount and channel number of RAM supported by Xeon Gold 5420's memory controller. Depending on the motherboard, higher memory frequency may be supported.
| Supported memory types | DDR5-4400 | |
| Maximum memory size | 4 TB | of 6 TiB (EPYC 9124) |
| Max memory channels | 8 | of 12 (Xeon Platinum 9221) |
| ECC memory support | + |
Peripherals
Specifications and connection types of supported peripherals.
| PCIe version | 5 | |
| PCI Express lanes | 80 | of 128 (EPYC 7551P) |
