Xeon Gold 6434H vs Gold 6256
Primary details
Comparing Xeon Gold 6256 and Xeon Gold 6434H processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | 146 | not rated |
| Place by popularity | not in top-100 | not in top-100 |
| Market segment | Server | Server |
| Power efficiency | 13.59 | no data |
| Architecture codename | no data | Sapphire Rapids (2023−2024) |
| Release date | 1 January 2020 (4 years ago) | 10 January 2023 (1 year ago) |
| Launch price (MSRP) | no data | $2,607 |
Detailed specifications
Xeon Gold 6256 and Xeon Gold 6434H 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 | 12 (Dodeca-Core) | 8 (Octa-Core) |
| Threads | 24 | 16 |
| Base clock speed | 3.6 GHz | 3.7 GHz |
| Boost clock speed | 4.5 GHz | 4.1 GHz |
| L1 cache | no data | 80K (per core) |
| L2 cache | no data | 2 MB (per core) |
| L3 cache | 33 MB | 22.5 MB |
| Chip lithography | 14 nm | Intel 7 nm |
| Maximum core temperature | 64 °C | no data |
| Maximum case temperature (TCase) | no data | 64 °C |
| 64 bit support | - | + |
| Windows 11 compatibility | + | no data |
Compatibility
Information on Xeon Gold 6256 and Xeon Gold 6434H 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 | 8 |
| Socket | FCLGA3647 | FCLGA4677 |
| Power consumption (TDP) | 205 Watt | 195 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Xeon Gold 6256 and Xeon Gold 6434H. You'll probably need this information if you require some particular technology.
| Instruction set extensions | Intel® SSE4.2, Intel® AVX, Intel® AVX2, Intel® AVX-512 | Intel® AMX, Intel® SSE4.2, Intel® AVX, Intel® AVX2, Intel® AVX-512 |
| AES-NI | + | + |
| AVX | - | + |
| Enhanced SpeedStep (EIST) | + | + |
| Speed Shift | + | + |
| Turbo Boost Technology | 2.0 | 2.0 |
| Hyper-Threading Technology | + | + |
| TSX | + | + |
| Turbo Boost Max 3.0 | - | no data |
| Deep Learning Boost | + | + |
Security technologies
Xeon Gold 6256 and Xeon Gold 6434H technologies aimed at improving security, for example, by protecting against hacks.
| TXT | + | + |
| EDB | + | + |
| SGX | no data | Yes with Intel® SPS |
| OS Guard | no data | + |
Virtualization technologies
Virtual machine speed-up technologies supported by Xeon Gold 6256 and Xeon Gold 6434H are enumerated here.
| VT-d | + | + |
| VT-x | + | + |
| EPT | + | + |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Xeon Gold 6256 and Xeon Gold 6434H. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR4-2933 | DDR5-4800, DDR5-4400 |
| Maximum memory size | 1 TB | 4 TB |
| Max memory channels | 6 | 8 |
| ECC memory support | + | + |
Peripherals
Specifications and connection of peripherals supported by Xeon Gold 6256 and Xeon Gold 6434H.
| PCIe version | 3.0 | 5 |
| PCI Express lanes | 48 | 80 |
Pros & cons summary
| Recency | 1 January 2020 | 10 January 2023 |
| Physical cores | 12 | 8 |
| Threads | 24 | 16 |
| Power consumption (TDP) | 205 Watt | 195 Watt |
Xeon Gold 6256 has 50% more physical cores and 50% more threads.
Xeon Gold 6434H, on the other hand, has an age advantage of 3 years, and 5.1% lower power consumption.
We couldn't decide between Xeon Gold 6256 and Xeon Gold 6434H. We've got no test results to judge.
Should you still have questions on choice between Xeon Gold 6256 and Xeon Gold 6434H, ask them in Comments section, and we shall answer.
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