Xeon 6978P vs Ultra 9 285HX
Contents
Primary details
Comparing processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | 99 | not rated |
| Place by popularity | not in top-100 | not in top-100 |
| Market segment | Laptop | Server |
| Power efficiency | 27.15 | no data |
| Designer | Intel | Intel |
| Manufacturer | TSMC | no data |
| Architecture codename | Arrow Lake-S (2024−2025) | no data |
| Release date | 13 January 2025 (less than a year ago) | 1 July 2025 (recently) |
Detailed specifications
Core Ultra 9 285HX and Xeon 6978P 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) | 120 |
| Performance-cores | 8 | no data |
| Efficient-cores | 16 | no data |
| Threads | 24 | 240 |
| Base clock speed | 2.8 GHz | 2.1 GHz |
| Boost clock speed | 5.5 GHz | 3.9 GHz |
| L1 cache | 192 KB (per core) | no data |
| L2 cache | 3 MB (per core) | no data |
| L3 cache | 36 MB (shared) | 504 MB |
| Chip lithography | 3 nm | Intel 3 nm |
| Die size | 243 mm2 | no data |
| Maximum core temperature | no data | 80 °C |
| Number of transistors | 17,800 million | no data |
| 64 bit support | + | - |
| Unlocked multiplier | + | - |
Compatibility
Information on Core Ultra 9 285HX and Xeon 6978P 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 | no data |
| Socket | FCBGA2114 | FCLGA7529 |
| Power consumption (TDP) | 55 Watt | 500 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Core Ultra 9 285HX and Xeon 6978P. You'll probably need this information if you require some particular technology.
| Instruction set extensions | Intel® SSE4.1, Intel® SSE4.2, Intel® AVX2 | Intel® AMX, Intel® SSE4.2, Intel® AVX, Intel® AVX2, Intel® AVX-512 |
| AES-NI | + | + |
| AVX | + | - |
| vPro | + | no data |
| Enhanced SpeedStep (EIST) | + | no data |
| 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 | + | no data |
| Deep Learning Boost | + | + |
| Supported AI Software Frameworks | OpenVINO™, WindowsML, DirectML, ONNX RT, WebNN | - |
Security technologies
Core Ultra 9 285HX and Xeon 6978P technologies aimed at improving security, for example, by protecting against hacks.
| TXT | + | + |
| EDB | + | + |
| SGX | no data | + |
| OS Guard | + | + |
Virtualization technologies
Virtual machine speed-up technologies supported by Core Ultra 9 285HX and Xeon 6978P are enumerated here.
| VT-d | + | + |
| VT-x | + | + |
| EPT | + | + |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Core Ultra 9 285HX and Xeon 6978P. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR5-6400 | DDR5(6400MT/s) MRDIMM(8800MT/s) |
| Maximum memory size | 256 GB | 3 TB |
| Max memory channels | 2 | 12 |
| 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 9 285HX and Xeon 6978P integrated GPUs.
| Number of displays supported | 4 | no data |
Graphics image quality
Maximum display resolutions supported by Core Ultra 9 285HX and Xeon 6978P 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 | 3840x2400 @ 120Hz | no data |
| Max resolution over DisplayPort | 7680 x 4320 @ 60Hz | no data |
Graphics API support
APIs supported by Core Ultra 9 285HX and Xeon 6978P 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 9 285HX and Xeon 6978P.
| PCIe version | 5.0 and 4.0 | 5.0 |
| PCI Express lanes | 24 | 96 |
Pros & cons summary
| Recency | 13 January 2025 | 1 July 2025 |
| Physical cores | 24 | 120 |
| Threads | 24 | 240 |
| Power consumption (TDP) | 55 Watt | 500 Watt |
Ultra 9 285HX has 809.1% lower power consumption.
Xeon 6978P, on the other hand, has an age advantage of 5 months, and 400% more physical cores and 900% more threads.
We couldn't decide between Intel Core Ultra 9 285HX and Intel Xeon 6978P. We've got no test results to judge.
Be aware that Core Ultra 9 285HX is a notebook processor while Xeon 6978P is a server/workstation one.
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