Xeon w5-2555X vs Ultra 7 265K
Aggregate performance score
Core Ultra 7 265K outperforms Xeon w5-2555X by a moderate 14% based on our aggregate benchmark results.
Primary details
Comparing Core Ultra 7 265K and Xeon w5-2555X processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | 85 | 122 |
| Place by popularity | not in top-100 | not in top-100 |
| Cost-effectiveness evaluation | 94.56 | no data |
| Market segment | Desktop processor | Server |
| Power efficiency | 28.16 | 12.27 |
| Architecture codename | Arrow Lake-S (2024−2025) | no data |
| Release date | 24 October 2024 (less than a year ago) | 1 July 2024 (less than a year ago) |
| Launch price (MSRP) | $394 | no data |
Cost-effectiveness evaluation
Performance per price, higher is better.
Detailed specifications
Core Ultra 7 265K and Xeon w5-2555X 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 | 20 (Icosa-Core) | 14 (Tetradeca-Core) |
| Performance-cores | 8 | 14 |
| Efficient-cores | 12 | no data |
| Threads | 20 | 28 |
| Base clock speed | 3.9 GHz | 3.3 GHz |
| Boost clock speed | 5.5 GHz | 4.8 GHz |
| L1 cache | 112 KB (per core) | no data |
| L2 cache | 3 MB (per core) | no data |
| L3 cache | 30 MB (shared) | 33.75 MB Intel® Smart Cache |
| Chip lithography | 3 nm | Intel 7 nm |
| Die size | 243 mm2 | no data |
| Maximum core temperature | no data | 75 °C |
| Number of transistors | 17,800 million | no data |
| 64 bit support | + | + |
| Unlocked multiplier | + | + |
Compatibility
Information on Core Ultra 7 265K and Xeon w5-2555X 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 | FCLGA1851 | FCLGA4677 |
| Power consumption (TDP) | 125 Watt | 252 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Core Ultra 7 265K and Xeon w5-2555X. You'll probably need this information if you require some particular technology.
| Instruction set extensions | Intel® SSE4.1, Intel® SSE4.2, Intel® AVX2 | Intel® SSE4.1, Intel® AMX, Intel® SSE4.2, Intel® AVX2, Intel® AVX-512 |
| AES-NI | + | + |
| AVX | + | - |
| vPro | + | no data |
| Enhanced SpeedStep (EIST) | + | + |
| Speed Shift | + | + |
| Turbo Boost Technology | 2.0 | 2.0 |
| Hyper-Threading Technology | no data | + |
| TSX | + | + |
| Idle States | + | no data |
| Thermal Monitoring | + | - |
| SIPP | + | - |
| Turbo Boost Max 3.0 | + | + |
| Deep Learning Boost | + | + |
| Supported AI Software Frameworks | OpenVINO™, WindowsML, DirectML, ONNX RT, WebNN | - |
Security technologies
Core Ultra 7 265K and Xeon w5-2555X technologies aimed at improving security, for example, by protecting against hacks.
| TXT | + | + |
| EDB | + | + |
| Secure Key | + | no data |
| SGX | no data | - |
| OS Guard | + | + |
Virtualization technologies
Virtual machine speed-up technologies supported by Core Ultra 7 265K and Xeon w5-2555X are enumerated here.
| VT-d | + | + |
| VT-x | + | + |
| EPT | + | + |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Core Ultra 7 265K and Xeon w5-2555X. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR5-6400 | DDR5-4800 |
| Maximum memory size | 192 GB | 2 TB |
| Max memory channels | 2 | 4 |
| ECC memory support | + | + |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | Intel® Graphics | no data |
| Quick Sync Video | + | - |
| Graphics max frequency | 2 GHz | no data |
Graphics interfaces
Available interfaces and connections of Core Ultra 7 265K and Xeon w5-2555X integrated GPUs.
| Number of displays supported | 4 | no data |
Graphics image quality
Maximum display resolutions supported by Core Ultra 7 265K and Xeon w5-2555X integrated GPUs, including resolutions over different interfaces.
| Max resolution over HDMI 1.4 | 4K @ 60Hz (HDMI 2.1 TMDS) 8K @ 60Hz (HDMI2.1 FRL) | no data |
| Max resolution over eDP | 4K @ 60Hz | no data |
| Max resolution over DisplayPort | 8K @ 60Hz | no data |
Graphics API support
APIs supported by Core Ultra 7 265K and Xeon w5-2555X 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 Ultra 7 265K and Xeon w5-2555X.
| PCIe version | 5.0 and 4.0 | 5.0 |
| PCI Express lanes | 20 | 64 |
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 | 37.22 | 32.68 |
| Recency | 24 October 2024 | 1 July 2024 |
| Physical cores | 20 | 14 |
| Threads | 20 | 28 |
| Power consumption (TDP) | 125 Watt | 252 Watt |
Ultra 7 265K has a 13.9% higher aggregate performance score, an age advantage of 3 months, 42.9% more physical cores, and 101.6% lower power consumption.
Xeon w5-2555X, on the other hand, has 40% more threads.
The Core Ultra 7 265K is our recommended choice as it beats the Xeon w5-2555X in performance tests.
Note that Core Ultra 7 265K is a desktop processor while Xeon w5-2555X is a server/workstation one.
Should you still have questions on choice between Core Ultra 7 265K and Xeon w5-2555X, ask them in Comments section, and we shall answer.
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