Core i9-11900K vs Xeon W-2145
Aggregate performance score
Core i9-11900K outperforms Xeon W-2145 by a substantial 39% based on our aggregated benchmark results.
Primary details
Comparing Xeon W-2145 and Core i9-11900K processor market type (desktop or notebook), architecture, sales start time and price.
| Place in performance ranking | 602 | 362 |
| Place by popularity | not in top-100 | not in top-100 |
| Cost-effectiveness evaluation | 22.06 | 51.88 |
| Market segment | Server | Desktop processor |
| Series | Intel Xeon W | no data |
| Architecture codename | Skylake-W (2018) | Rocket Lake (2021) |
| Release date | 29 August 2017 (6 years ago) | 16 March 2021 (3 years ago) |
| Launch price (MSRP) | $1,113 | no data |
| Current price | $317 (0.3x MSRP) | $250 |
Cost-effectiveness evaluation
Performance per price, higher is better.
i9-11900K has 135% better value for money than Xeon W-2145.
Detailed specifications
Xeon W-2145 and Core i9-11900K 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) | 8 (Octa-Core) |
| Threads | 16 | 16 |
| Base clock speed | 3.7 GHz | 3.5 GHz |
| Boost clock speed | 4.5 GHz | 5.2 GHz |
| L1 cache | 64K (per core) | 64K (per core) |
| L2 cache | 1 MB (per core) | 256K (per core) |
| L3 cache | 11 MB (shared) | 16 MB (shared) |
| Chip lithography | 14 nm | 14 nm |
| Die size | 484 mm2 | no data |
| Maximum core temperature | 70 °C | 100 °C |
| Maximum case temperature (TCase) | 70 °C | 72 °C |
| 64 bit support | + | + |
| Windows 11 compatibility | + | + |
| Unlocked multiplier | No | Yes |
Compatibility
Information on Xeon W-2145 and Core i9-11900K 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 | Socket R4 | FCLGA1200 |
| Power consumption (TDP) | 140 Watt | 125 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Xeon W-2145 and Core i9-11900K. 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® SSE4.1, Intel® SSE4.2, 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 | + | + |
| Thermal Monitoring | + | + |
| Flex Memory Access | - | no data |
| SIPP | no data | + |
| Demand Based Switching | + | no data |
| PAE | 46 Bit | no data |
| Turbo Boost Max 3.0 | - | + |
| Status | Discontinued | Discontinued |
Security technologies
Xeon W-2145 and Core i9-11900K technologies aimed at improving security, for example, by protecting against hacks.
| TXT | + | + |
| EDB | + | + |
| Secure Key | + | + |
| MPX | + | no data |
| Identity Protection | + | + |
| SGX | - | - |
| OS Guard | + | + |
Virtualization technologies
Virtual machine speed-up technologies supported by Xeon W-2145 and Core i9-11900K are enumerated here.
| AMD-V | + | no data |
| VT-d | + | + |
| VT-x | + | + |
| EPT | + | + |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Xeon W-2145 and Core i9-11900K. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR4 | DDR4 |
| Maximum memory size | 512 GB | 128 GB |
| Max memory channels | 4 | 2 |
| Maximum memory bandwidth | 85.3 GB/s | 50 GB/s |
| ECC memory support | + | - |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | no data | Intel UHD Graphics 750 |
| Max video memory | no data | 64 GB |
| Quick Sync Video | no data | + |
| Clear Video | no data | + |
| Clear Video HD | no data | + |
| Graphics max frequency | no data | 1.3 GHz |
| Execution Units | no data | 32 |
| InTru 3D | no data | + |
Graphics interfaces
Available interfaces and connections of Xeon W-2145 and Core i9-11900K integrated GPUs.
| Number of displays supported | no data | 3 |
Graphics image quality
Maximum display resolutions supported by Xeon W-2145 and Core i9-11900K integrated GPUs, including resolutions over different interfaces.
| 4K resolution support | no data | + |
| Max resolution over HDMI 1.4 | no data | 4096x2160@60Hz |
| Max resolution over eDP | no data | 5120 x 3200 @60Hz |
| Max resolution over DisplayPort | no data | 5120 x 3200 @60Hz |
Graphics API support
APIs supported by Xeon W-2145 and Core i9-11900K integrated GPUs, sometimes API versions are included.
| DirectX | no data | 12.1 |
| OpenGL | no data | 4.5 |
Peripherals
Specifications and connection of peripherals supported by Xeon W-2145 and Core i9-11900K.
| PCIe version | 3.0 | 4.0 |
| PCI Express lanes | 48 | 20 |
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.
Core i9-11900K outperforms Xeon W-2145 by 39% based on our aggregated benchmark results.
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.
Benchmark coverage: 68%
Core i9-11900K outperforms Xeon W-2145 by 39% in Passmark.
GeekBench 5 Single-Core
GeekBench 5 Single-Core is a cross-platform application developed in the form of CPU tests that independently recreate certain real-world tasks with which to accurately measure performance. This version uses only a single CPU core.
Benchmark coverage: 42%
Core i9-11900K outperforms Xeon W-2145 by 69% in GeekBench 5 Single-Core.
GeekBench 5 Multi-Core
GeekBench 5 Multi-Core is a cross-platform application developed in the form of CPU tests that independently recreate certain real-world tasks with which to accurately measure performance. This version uses all available CPU cores.
Benchmark coverage: 42%
Core i9-11900K outperforms Xeon W-2145 by 37% in GeekBench 5 Multi-Core.
Cinebench 15 64-bit multi-core
Cinebench Release 15 Multi Core is a variant of Cinebench R15 which uses all the processor threads.
Benchmark coverage: 15%
Core i9-11900K outperforms Xeon W-2145 by 41% in Cinebench 15 64-bit multi-core.
Cinebench 15 64-bit single-core
Cinebench R15 (standing for Release 15) is a benchmark made by Maxon, authors of Cinema 4D. It was superseded by later versions of Cinebench, which use more modern variants of Cinema 4D engine. The Single Core version (sometimes called Single-Thread) only uses a single processor thread to render a room full of reflective spheres and light sources.
Benchmark coverage: 15%
Core i9-11900K outperforms Xeon W-2145 by 44% in Cinebench 15 64-bit single-core.
Pros & cons summary
| Performance score | 11.75 | 16.37 |
| Recency | 29 August 2017 | 16 March 2021 |
| Power consumption (TDP) | 140 Watt | 125 Watt |
The Core i9-11900K is our recommended choice as it beats the Xeon W-2145 in performance tests.
Be aware that Xeon W-2145 is a server/workstation processor while Core i9-11900K is a desktop one.
Should you still have questions on choice between Xeon W-2145 and Core i9-11900K, ask them in Comments section, and we shall answer.
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