Xeon Platinum 8280L vs i9-9900K
Primary details
Comparing Core i9-9900K and Xeon Platinum 8280L processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | 658 | not rated |
| Place by popularity | not in top-100 | not in top-100 |
| Cost-effectiveness evaluation | 8.32 | no data |
| Market segment | Desktop processor | Server |
| Series | Core i9 (Desktop) | Intel Xeon Platinum |
| Architecture codename | Coffee Lake-R (2018−2019) | Cascade Lake (2019−2020) |
| Release date | 8 October 2018 (5 years ago) | 2 April 2019 (5 years ago) |
| Launch price (MSRP) | $488 | $17,906 |
Cost-effectiveness evaluation
Performance per price, higher is better.
Detailed specifications
Core i9-9900K and Xeon Platinum 8280L 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) | 28 (Octacosa-Core) |
| Threads | 16 | 56 |
| Base clock speed | 3.6 GHz | 2.7 GHz |
| Boost clock speed | 5 GHz | 4 GHz |
| Bus type | DMI 3.0 | no data |
| Bus rate | 4 × 8 GT/s | no data |
| Multiplier | no data | 27 |
| L1 cache | 512 KB | 1.75 MB |
| L2 cache | 2 MB | 28 MB |
| L3 cache | 16 MB (shared) | 38.5 MB |
| Chip lithography | 14 nm | 14 nm |
| Die size | 178 mm2 | no data |
| Maximum core temperature | 100 °C | 84 °C |
| Maximum case temperature (TCase) | 72 °C | no data |
| 64 bit support | + | + |
| Windows 11 compatibility | + | + |
| Unlocked multiplier | + | - |
Compatibility
Information on Core i9-9900K and Xeon Platinum 8280L 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 (Uniprocessor) | 8 (Multiprocessor) |
| Socket | LGA-1151 | FCLGA3647 |
| Power consumption (TDP) | 95 Watt | 205 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Core i9-9900K and Xeon Platinum 8280L. You'll probably need this information if you require some particular technology.
| Instruction set extensions | Intel® SSE4.1, Intel® SSE4.2, Intel® AVX2 | Intel® SSE4.2, Intel® AVX, Intel® AVX2, Intel® AVX-512 |
| AES-NI | + | + |
| AVX | + | + |
| vPro | + | + |
| Enhanced SpeedStep (EIST) | + | + |
| 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 | - |
| Status | Discontinued | Launched |
| Deep Learning Boost | - | + |
Security technologies
Core i9-9900K and Xeon Platinum 8280L technologies aimed at improving security, for example, by protecting against hacks.
| TXT | + | + |
| EDB | + | + |
| Secure Key | + | no data |
| MPX | + | - |
| Identity Protection | + | - |
| SGX | Yes with Intel® ME | no data |
| OS Guard | + | no data |
Virtualization technologies
Virtual machine speed-up technologies supported by Core i9-9900K and Xeon Platinum 8280L are enumerated here.
| AMD-V | + | - |
| VT-d | + | + |
| VT-x | + | + |
| EPT | + | + |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Core i9-9900K and Xeon Platinum 8280L. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR4 | DDR4-2933 |
| Maximum memory size | 128 GB | 4.5 TB |
| Max memory channels | 2 | 6 |
| Maximum memory bandwidth | 44.668 GB/s | 140.8 GB/s |
| ECC memory support | - | + |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | Intel UHD Graphics 630 | no data |
| Max video memory | 64 GB | no data |
| Quick Sync Video | + | - |
| Clear Video | + | no data |
| Clear Video HD | + | no data |
| Graphics max frequency | 1.2 GHz | no data |
| InTru 3D | + | no data |
Graphics interfaces
Available interfaces and connections of Core i9-9900K and Xeon Platinum 8280L integrated GPUs.
| Number of displays supported | 3 | no data |
Graphics image quality
Maximum display resolutions supported by Core i9-9900K and Xeon Platinum 8280L integrated GPUs, including resolutions over different interfaces.
| 4K resolution support | + | no data |
| Max resolution over HDMI 1.4 | 4096 x 2304@24Hz | no data |
| Max resolution over eDP | 4096 x 2304@60Hz | no data |
| Max resolution over DisplayPort | 4096 x 2304@60Hz | no data |
Graphics API support
APIs supported by Core i9-9900K and Xeon Platinum 8280L integrated GPUs, sometimes API versions are included.
| DirectX | 12 | no data |
| OpenGL | 4.5 | no data |
Peripherals
Specifications and connection of peripherals supported by Core i9-9900K and Xeon Platinum 8280L.
| PCIe version | 3.0 | 3.0 |
| PCI Express lanes | 16 | 48 |
Pros & cons summary
| Recency | 8 October 2018 | 2 April 2019 |
| Physical cores | 8 | 28 |
| Threads | 16 | 56 |
| Power consumption (TDP) | 95 Watt | 205 Watt |
i9-9900K has 115.8% lower power consumption.
Xeon Platinum 8280L, on the other hand, has an age advantage of 5 months, and 250% more physical cores and 250% more threads.
We couldn't decide between Core i9-9900K and Xeon Platinum 8280L. We've got no test results to judge.
Note that Core i9-9900K is a desktop processor while Xeon Platinum 8280L is a server/workstation one.
Should you still have questions on choice between Core i9-9900K and Xeon Platinum 8280L, ask them in Comments section, and we shall answer.
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