Xeon W-3365 vs Ultra 9 290HX Plus
Contents
Primary details
Comparing processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | 18 | 160 |
| Place by popularity | not in top-100 | not in top-100 |
| Market segment | Laptop | Server |
| Power efficiency | no data | 5.12 |
| Designer | Intel | Intel |
| Manufacturer | TSMC | Intel |
| Architecture codename | Arrow Lake-HX Refresh (2026) | Ice Lake-W (2021) |
| Release date | 17 March 2026 (recently) | 29 July 2021 (4 years ago) |
Detailed specifications
Core Ultra 9 290HX Plus and Xeon W-3365 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 | 24 | 64 |
| Base clock speed | 2.7 GHz | 2.7 GHz |
| Boost clock speed | 5.5 GHz | 4 GHz |
| Bus rate | no data | 8 GT/s |
| L1 cache | 192 KB (per core) | 64K (per core) |
| L2 cache | 3 MB (per core) | 1 MB (per core) |
| L3 cache | 36 MB (shared) | 48 MB (shared) |
| Chip lithography | 3 nm | 10 nm |
| Die size | 243 mm2 | no data |
| Maximum case temperature (TCase) | no data | 81 °C |
| Number of transistors | 17,800 million | no data |
| 64 bit support | + | + |
| Windows 11 compatibility | no data | + |
| Unlocked multiplier | + | - |
Compatibility
Information on Core Ultra 9 290HX Plus and Xeon W-3365 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 | Intel BGA 2114 | FCLGA4189 |
| Power consumption (TDP) | 55 Watt | 270 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Core Ultra 9 290HX Plus and Xeon W-3365. You'll probably need this information if you require some particular technology.
| Instruction set extensions | no data | Intel® AVX-512 |
| AES-NI | + | + |
| AVX | + | + |
| vPro | no data | + |
| Enhanced SpeedStep (EIST) | + | + |
| Speed Shift | no data | + |
| Turbo Boost Technology | no data | 2.0 |
| Hyper-Threading Technology | no data | + |
| TSX | - | + |
| Turbo Boost Max 3.0 | no data | - |
| Deep Learning Boost | - | + |
Security technologies
Core Ultra 9 290HX Plus and Xeon W-3365 technologies aimed at improving security, for example, by protecting against hacks.
| TXT | + | + |
| EDB | no data | + |
| SGX | no data | - |
Virtualization technologies
Virtual machine speed-up technologies supported by Core Ultra 9 290HX Plus and Xeon W-3365 are enumerated here.
| VT-d | + | + |
| VT-x | + | + |
| EPT | no data | + |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Core Ultra 9 290HX Plus and Xeon W-3365. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR5 | DDR4-3200 |
| Maximum memory size | no data | 4 TB |
| Max memory channels | no data | 8 |
| ECC memory support | - | + |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | Arc Xe-LPG Graphics 64EU | no data |
Peripherals
Specifications and connection of peripherals supported by Core Ultra 9 290HX Plus and Xeon W-3365.
| PCIe version | 5.0 | 4 |
| PCI Express lanes | 24 | 64 |
Synthetic benchmarks
Various benchmark results of the processors in comparison. Overall score is measured in points in 0-100 range, higher is better.
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. Other than that, Passmark measures multi-core performance.
Pros & cons summary
| Recency | 17 March 2026 | 29 July 2021 |
| Physical cores | 24 | 32 |
| Threads | 24 | 64 |
| Chip lithography | 3 nm | 10 nm |
| Power consumption (TDP) | 55 Watt | 270 Watt |
Ultra 9 290HX Plus has an age advantage of 4 years, a 233.3% more advanced lithography process, and 390.9% lower power consumption.
Xeon W-3365, on the other hand, has 33.3% more physical cores and 166.7% more threads.
We couldn't decide between Intel Core Ultra 9 290HX Plus and Intel Xeon W-3365. We've got no test results to judge.
Be aware that Core Ultra 9 290HX Plus is a notebook processor while Xeon W-3365 is a server/workstation one.
Other comparisons
We've compiled a selection of CPU comparisons, ranging from closely matched processors to other comparisons that may be of interest.
