Xeon 6556P-B vs Gold 6122
Primary details
Comparing Xeon Gold 6122 and Xeon 6556P-B processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | 495 | not rated |
| Place by popularity | not in top-100 | not in top-100 |
| Market segment | Server | Server |
| Power efficiency | 11.77 | no data |
| Designer | Intel | Intel |
| Architecture codename | no data | Granite Rapids (2024−2025) |
| Release date | 1 April 2018 (6 years ago) | 24 February 2025 (recently) |
| Launch price (MSRP) | no data | $2,628 |
Detailed specifications
Xeon Gold 6122 and Xeon 6556P-B basic parameters such as number of cores, number of threads, base frequency and turbo boost clock, lithography, cache size and multiplier lock state. These parameters indirectly say of CPU speed, though for more precise assessment you have to consider their test results.
| Physical cores | 20 (Icosa-Core) | 36 |
| Threads | 40 | 72 |
| Base clock speed | 1.8 GHz | 2.3 GHz |
| Boost clock speed | 3.7 GHz | 3.5 GHz |
| L1 cache | no data | 112 KB (per core) |
| L2 cache | no data | 2 MB (per core) |
| L3 cache | 28 MB | 144 MB (shared) |
| Chip lithography | 14 nm | 5 nm |
| Die size | no data | 598 mm2 |
| Maximum case temperature (TCase) | no data | 85 °C |
| 64 bit support | - | + |
| Windows 11 compatibility | - | no data |
Compatibility
Information on Xeon Gold 6122 and Xeon 6556P-B compatibility with other computer components: 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.
| Number of CPUs in a configuration | no data | 2 |
| Socket | FCLGA3647 | Intel BGA 4368 |
| Power consumption (TDP) | 120 Watt | 215 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Xeon Gold 6122 and Xeon 6556P-B. You'll probably need this information if you require some particular technology.
| Instruction set extensions | Intel® AVX-512 | no data |
| AES-NI | + | + |
| AVX | - | + |
| vPro | + | no data |
| Speed Shift | + | no data |
| Turbo Boost Technology | 2.0 | no data |
| Hyper-Threading Technology | + | no data |
| TSX | + | + |
| Turbo Boost Max 3.0 | - | no data |
Security technologies
Xeon Gold 6122 and Xeon 6556P-B technologies aimed at improving security, for example, by protecting against hacks.
| TXT | + | + |
Virtualization technologies
Virtual machine speed-up technologies supported by Xeon Gold 6122 and Xeon 6556P-B are enumerated here.
| VT-d | no data | + |
| VT-x | + | + |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Xeon Gold 6122 and Xeon 6556P-B. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR4-2400 | DDR5 |
| Maximum memory size | 768 GB | no data |
| Max memory channels | 6 | no data |
| ECC memory support | + | - |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | no data | N/A |
Peripherals
Specifications and connection of peripherals supported by Xeon Gold 6122 and Xeon 6556P-B.
| PCIe version | 3.0 | 5.0 |
| PCI Express lanes | 48 | 32 |
Pros & cons summary
| Recency | 1 April 2018 | 24 February 2025 |
| Physical cores | 20 | 36 |
| Threads | 40 | 72 |
| Chip lithography | 14 nm | 5 nm |
| Power consumption (TDP) | 120 Watt | 215 Watt |
Xeon Gold 6122 has 79.2% lower power consumption.
Xeon 6556P-B, on the other hand, has an age advantage of 6 years, 80% more physical cores and 80% more threads, and a 180% more advanced lithography process.
We couldn't decide between Intel Xeon Gold 6122 and Intel Xeon 6556P-B. We've got no test results to judge.
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