i9-9800X vs Ultra 7 270HX Plus
Contents
Primary details
Comparing processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | 37 | not rated |
| Place by popularity | not in top-100 | not in top-100 |
| Market segment | Laptop | Desktop processor |
| Designer | Intel | Intel |
| Manufacturer | TSMC | no data |
| Architecture codename | Arrow Lake-HX Refresh (2026) | Skylake-X (2018) |
| Release date | 17 March 2026 (recently) | October 2018 (7 years ago) |
Detailed specifications
Core Ultra 7 270HX Plus and Core i9-9800X 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) | 8 (Octa-Core) |
| Threads | 20 | 16 |
| Base clock speed | 2.4 GHz | no data |
| Boost clock speed | 5.3 GHz | 3.8 GHz |
| L1 cache | 192 KB (per core) | 64K (per core) |
| L2 cache | 3 MB (per core) | 1 MB (per core) |
| L3 cache | 30 MB (shared) | 16.5 MB (shared) |
| Chip lithography | 3 nm | 14 nm |
| Die size | 243 mm2 | no data |
| Maximum case temperature (TCase) | no data | 72 °C |
| Number of transistors | 17,800 million | no data |
| 64 bit support | + | + |
| Windows 11 compatibility | no data | - |
| Unlocked multiplier | + | + |
Compatibility
Information on Core Ultra 7 270HX Plus and Core i9-9800X 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 | 2066 |
| Power consumption (TDP) | 55 Watt | 165 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Core Ultra 7 270HX Plus and Core i9-9800X. You'll probably need this information if you require some particular technology.
| AES-NI | + | + |
| AVX | + | + |
| Enhanced SpeedStep (EIST) | + | + |
| TSX | - | + |
Security technologies
Core Ultra 7 270HX Plus and Core i9-9800X technologies aimed at improving security, for example, by protecting against hacks.
| TXT | + | + |
Virtualization technologies
Virtual machine speed-up technologies supported by Core Ultra 7 270HX Plus and Core i9-9800X are enumerated here.
| VT-d | + | + |
| VT-x | + | + |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Core Ultra 7 270HX Plus and Core i9-9800X. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR5 | DDR4 |
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 7 270HX Plus and Core i9-9800X.
| PCIe version | 5.0 | no data |
| PCI Express lanes | 24 | no data |
Pros & cons summary
| Physical cores | 20 | 8 |
| Threads | 20 | 16 |
| Chip lithography | 3 nm | 14 nm |
| Power consumption (TDP) | 55 Watt | 165 Watt |
Ultra 7 270HX Plus has 150% more physical cores and 25% more threads, a 367% more advanced lithography process, and 200% lower power consumption.
We couldn't decide between Intel Core Ultra 7 270HX Plus and Intel Core i9-9800X. We've got no test results to judge.
Be aware that Core Ultra 7 270HX Plus is a notebook processor while Core i9-9800X is a desktop one.
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