Xeon 6766E 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 | not rated |
| Place by popularity | not in top-100 | not in top-100 |
| Market segment | Laptop | Server |
| Designer | Intel | Intel |
| Manufacturer | TSMC | Intel |
| Architecture codename | Arrow Lake-HX Refresh (2026) | Sierra Forest (2024) |
| Release date | 17 March 2026 (recently) | 3 June 2024 (1 year ago) |
| Launch price (MSRP) | no data | $10,257 |
Detailed specifications
Core Ultra 9 290HX Plus and Xeon 6766E 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) | 144 |
| Threads | 24 | 144 |
| Base clock speed | 2.7 GHz | 1.9 GHz |
| Boost clock speed | 5.5 GHz | 2.7 GHz |
| L1 cache | 192 KB (per core) | 96 KB (per core) |
| L2 cache | 3 MB (per core) | 4 MB (per module) |
| L3 cache | 36 MB (shared) | 108 MB (shared) |
| Chip lithography | 3 nm | Intel 3 nm |
| Die size | 243 mm2 | no data |
| Maximum case temperature (TCase) | no data | 84 °C |
| Number of transistors | 17,800 million | no data |
| 64 bit support | + | + |
| Unlocked multiplier | + | - |
Compatibility
Information on Core Ultra 9 290HX Plus and Xeon 6766E 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 | 2 |
| Socket | Intel BGA 2114 | FCLGA4710 |
| Power consumption (TDP) | 55 Watt | 250 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Core Ultra 9 290HX Plus and Xeon 6766E. You'll probably need this information if you require some particular technology.
| Instruction set extensions | no data | Intel® AVX2 |
| AES-NI | + | + |
| AVX | + | + |
| Enhanced SpeedStep (EIST) | + | + |
| TSX | - | + |
| Deep Learning Boost | - | + |
Security technologies
Core Ultra 9 290HX Plus and Xeon 6766E technologies aimed at improving security, for example, by protecting against hacks.
| TXT | + | + |
| EDB | no data | + |
| SGX | no data | + |
| OS Guard | no data | + |
Virtualization technologies
Virtual machine speed-up technologies supported by Core Ultra 9 290HX Plus and Xeon 6766E are enumerated here.
| VT-d | + | + |
| VT-x | + | + |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Core Ultra 9 290HX Plus and Xeon 6766E. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR5 | DDR5-6400 |
| 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 | N/A |
Peripherals
Specifications and connection of peripherals supported by Core Ultra 9 290HX Plus and Xeon 6766E.
| PCIe version | 5.0 | 5.0 |
| PCI Express lanes | 24 | 88 |
Pros & cons summary
| Recency | 17 March 2026 | 3 June 2024 |
| Physical cores | 24 | 144 |
| Threads | 24 | 144 |
| Power consumption (TDP) | 55 Watt | 250 Watt |
Ultra 9 290HX Plus has an age advantage of 1 year, and 354.5% lower power consumption.
Xeon 6766E, on the other hand, has 500% more physical cores and 500% more threads.
We couldn't decide between Intel Core Ultra 9 290HX Plus and Intel Xeon 6766E. We've got no test results to judge.
Be aware that Core Ultra 9 290HX Plus is a notebook processor while Xeon 6766E is a server/workstation one.
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