Xeon Gold 6403N vs i9-11900K
Primary details
Comparing Core i9-11900K and Xeon Gold 6403N processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | 428 | not rated |
| Place by popularity | not in top-100 | not in top-100 |
| Cost-effectiveness evaluation | 18.92 | no data |
| Market segment | Desktop processor | Server |
| Power efficiency | 12.01 | no data |
| Architecture codename | Rocket Lake (2021) | no data |
| Release date | 16 March 2021 (3 years ago) | 1 July 2023 (1 year ago) |
| Launch price (MSRP) | $539 | no data |
Cost-effectiveness evaluation
Performance per price, higher is better.
Detailed specifications
Core i9-11900K and Xeon Gold 6403N 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 | 8 (Octa-Core) | 24 (Tetracosa-Core) |
| Threads | 16 | 48 |
| Base clock speed | 3.5 GHz | 1.9 GHz |
| Boost clock speed | 5.2 GHz | 3.6 GHz |
| Bus rate | 8 GT/s | no data |
| L1 cache | 80 KB (per core) | no data |
| L2 cache | 512 KB (per core) | no data |
| L3 cache | 16 MB (shared) | 45 MB |
| Chip lithography | 14 nm | Intel 7 nm |
| Die size | 276 mm2 | no data |
| Maximum core temperature | 100 °C | 85 °C |
| Maximum case temperature (TCase) | 72 °C | no data |
| 64 bit support | + | - |
| Windows 11 compatibility | + | no data |
| Unlocked multiplier | + | - |
Compatibility
Information on Core i9-11900K and Xeon Gold 6403N 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 | no data |
| Socket | FCLGA1200 | FCLGA4677 |
| Power consumption (TDP) | 125 Watt | 185 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Core i9-11900K and Xeon Gold 6403N. You'll probably need this information if you require some particular technology.
| Instruction set extensions | Intel® SSE4.1, Intel® SSE4.2, Intel® AVX2, Intel® AVX-512 | Intel® SSE4.2, Intel® AVX, Intel® AVX2, Intel® AVX-512 |
| AES-NI | + | + |
| AVX | + | - |
| vPro | + | no data |
| Enhanced SpeedStep (EIST) | + | no data |
| Speed Shift | no data | + |
| Turbo Boost Technology | 2.0 | 2.0 |
| Hyper-Threading Technology | + | + |
| TSX | + | + |
| Idle States | + | no data |
| Thermal Monitoring | + | - |
| SIPP | + | - |
| Turbo Boost Max 3.0 | + | no data |
| Deep Learning Boost | + | + |
Security technologies
Core i9-11900K and Xeon Gold 6403N technologies aimed at improving security, for example, by protecting against hacks.
| TXT | + | + |
| EDB | + | + |
| Secure Key | + | no data |
| Identity Protection | + | - |
| SGX | - | Yes with Intel® SPS |
| OS Guard | + | + |
Virtualization technologies
Virtual machine speed-up technologies supported by Core i9-11900K and Xeon Gold 6403N are enumerated here.
| VT-d | + | + |
| VT-x | + | + |
| EPT | + | + |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Core i9-11900K and Xeon Gold 6403N. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR4 | DDR5-4000 |
| Maximum memory size | 128 GB | 4 TB |
| Max memory channels | 2 | 8 |
| Maximum memory bandwidth | 50 GB/s | no data |
| ECC memory support | - | + |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | Intel UHD Graphics 750 | no data |
| Max video memory | 64 GB | no data |
| Quick Sync Video | + | - |
| Clear Video | + | no data |
| Clear Video HD | + | no data |
| Graphics max frequency | 1.3 GHz | no data |
| Execution Units | 32 | no data |
| InTru 3D | + | no data |
Graphics interfaces
Available interfaces and connections of Core i9-11900K and Xeon Gold 6403N integrated GPUs.
| Number of displays supported | 3 | no data |
Graphics image quality
Maximum display resolutions supported by Core i9-11900K and Xeon Gold 6403N integrated GPUs, including resolutions over different interfaces.
| 4K resolution support | + | no data |
| Max resolution over HDMI 1.4 | 4096x2160@60Hz | no data |
| Max resolution over eDP | 5120 x 3200 @60Hz | no data |
| Max resolution over DisplayPort | 5120 x 3200 @60Hz | no data |
Graphics API support
APIs supported by Core i9-11900K and Xeon Gold 6403N integrated GPUs, sometimes API versions are included.
| DirectX | 12.1 | no data |
| OpenGL | 4.5 | no data |
Peripherals
Specifications and connection of peripherals supported by Core i9-11900K and Xeon Gold 6403N.
| PCIe version | 4.0 | 4 |
| PCI Express lanes | 20 | 64 |
Pros & cons summary
| Recency | 16 March 2021 | 1 July 2023 |
| Physical cores | 8 | 24 |
| Threads | 16 | 48 |
| Power consumption (TDP) | 125 Watt | 185 Watt |
i9-11900K has 48% lower power consumption.
Xeon Gold 6403N, on the other hand, has an age advantage of 2 years, and 200% more physical cores and 200% more threads.
We couldn't decide between Core i9-11900K and Xeon Gold 6403N. We've got no test results to judge.
Note that Core i9-11900K is a desktop processor while Xeon Gold 6403N is a server/workstation one.
Should you still have questions on choice between Core i9-11900K and Xeon Gold 6403N, ask them in Comments section, and we shall answer.
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