Xeon Gold 6421N vs i9-13900KF
Aggregate performance score
Xeon Gold 6421N outperforms Core i9-13900KF by a minimal 1% based on our aggregate benchmark results.
Primary details
Comparing Core i9-13900KF and Xeon Gold 6421N processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | 93 | 90 |
| Place by popularity | not in top-100 | not in top-100 |
| Cost-effectiveness evaluation | 61.44 | 44.66 |
| Market segment | Desktop processor | Server |
| Series | Intel Core i9 | no data |
| Power efficiency | 13.73 | 18.92 |
| Architecture codename | Raptor Lake, Raptor Cove, Gracemont (2022) | Sapphire Rapids (2023−2024) |
| Release date | 27 September 2022 (2 years ago) | 10 January 2023 (1 year ago) |
| Launch price (MSRP) | $564 | $2,368 |
Cost-effectiveness evaluation
Performance per price, higher is better.
i9-13900KF has 38% better value for money than Xeon Gold 6421N.
Detailed specifications
Core i9-13900KF and Xeon Gold 6421N 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 | 24 (Tetracosa-Core) | 32 (Dotriaconta-Core) |
| Threads | 32 | 64 |
| Base clock speed | 3 GHz | 1.8 GHz |
| Boost clock speed | 5.7 GHz | 3.6 GHz |
| Bus rate | 4 × 16 GT/s | no data |
| Multiplier | 30 | no data |
| L1 cache | 1.5 MB | 80K (per core) |
| L2 cache | 16 MB | 2 MB (per core) |
| L3 cache | 12 MB | 60 MB |
| Chip lithography | Intel 7 nm | Intel 7 nm |
| Die size | 257 mm2 | no data |
| Maximum core temperature | 100 °C | no data |
| Maximum case temperature (TCase) | 72 °C | 85 °C |
| 64 bit support | + | + |
| Windows 11 compatibility | + | no data |
| Unlocked multiplier | + | - |
Compatibility
Information on Core i9-13900KF and Xeon Gold 6421N 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 | 1 | 1 |
| Socket | FCLGA1700 | FCLGA4677 |
| Power consumption (TDP) | 125 W, 253 Watt | 185 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Core i9-13900KF and Xeon Gold 6421N. You'll probably need this information if you require some particular technology.
| Instruction set extensions | Intel® SSE4.1, Intel® SSE4.2, Intel® AVX2 | Intel® AMX, Intel® SSE4.2, Intel® AVX, Intel® AVX2, Intel® AVX-512 |
| AES-NI | + | + |
| AVX | + | + |
| vPro | + | + |
| Enhanced SpeedStep (EIST) | + | + |
| Speed Shift | + | + |
| Turbo Boost Technology | 2.0 | 2.0 |
| Hyper-Threading Technology | + | + |
| TSX | - | + |
| Idle States | + | no data |
| Thermal Monitoring | + | - |
| Turbo Boost Max 3.0 | + | no data |
| Deep Learning Boost | + | + |
Security technologies
Core i9-13900KF and Xeon Gold 6421N technologies aimed at improving security, for example, by protecting against hacks.
| TXT | no data | + |
| EDB | + | + |
| Secure Key | + | no data |
| SGX | no data | Yes with Intel® SPS |
| OS Guard | + | + |
Virtualization technologies
Virtual machine speed-up technologies supported by Core i9-13900KF and Xeon Gold 6421N are enumerated here.
| VT-d | + | + |
| VT-x | + | + |
| EPT | + | + |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Core i9-13900KF and Xeon Gold 6421N. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR5-5600, DDR4-3200 | DDR5-4400 |
| Maximum memory size | 192 GB | 4 TB |
| Max memory channels | 2 | 8 |
| Maximum memory bandwidth | 89.604 GB/s | no data |
| ECC memory support | - | + |
Peripherals
Specifications and connection of peripherals supported by Core i9-13900KF and Xeon Gold 6421N.
| PCIe version | 5.0 and 4.0 | 5 |
| PCI Express lanes | 20 | 80 |
Synthetic benchmark performance
Various benchmark results of the processors in comparison. Overall score is measured in points in 0-100 range, higher is better.
Combined synthetic benchmark score
This is our combined benchmark performance rating. We are regularly improving our combining algorithms, but if you find some perceived inconsistencies, feel free to speak up in comments section, we usually fix problems quickly.
Passmark
Passmark CPU Mark is a widespread benchmark, consisting of 8 different types of workload, including integer and floating point math, extended instructions, compression, encryption and physics calculation. There is also one separate single-threaded scenario measuring single-core performance.
Pros & cons summary
| Performance score | 36.87 | 37.15 |
| Recency | 27 September 2022 | 10 January 2023 |
| Physical cores | 24 | 32 |
| Threads | 32 | 64 |
| Power consumption (TDP) | 125 Watt | 185 Watt |
i9-13900KF has 48% lower power consumption.
Xeon Gold 6421N, on the other hand, has a 0.8% higher aggregate performance score, an age advantage of 3 months, and 33.3% more physical cores and 100% more threads.
Given the minimal performance differences, no clear winner can be declared between Core i9-13900KF and Xeon Gold 6421N.
Note that Core i9-13900KF is a desktop processor while Xeon Gold 6421N is a server/workstation one.
Should you still have questions on choice between Core i9-13900KF and Xeon Gold 6421N, ask them in Comments section, and we shall answer.
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