Ultra 7 155U vs Ryzen 9 9955HX
Aggregate performance score
Ryzen 9 9955HX outperforms Core Ultra 7 155U by a whopping 243% based on our aggregate benchmark results.
Contents
Primary details
Comparing processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | 163 | 960 |
| Place by popularity | not in top-100 | not in top-100 |
| Cost-effectiveness evaluation | no data | 14.26 |
| Market segment | Laptop | Laptop |
| Series | AMD Dragon Range (Zen 4, Ryzen 7045) | Intel Meteor Lake-U |
| Power efficiency | 61.37 | no data |
| Designer | AMD | Intel |
| Manufacturer | TSMC | Intel |
| Architecture codename | Fire Range-HX (Zen 5) (2025) | Meteor Lake-P (2023) |
| Release date | 6 January 2025 (less than a year ago) | 14 December 2023 (1 year ago) |
| Launch price (MSRP) | no data | $490 |
Cost-effectiveness evaluation
Performance per price, higher is better.
Performance to price scatter graph
Detailed specifications
Ryzen 9 9955HX and Core Ultra 7 155U 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 | 16 (Hexadeca-Core) | 12 (Dodeca-Core) |
| Performance-cores | no data | 2 |
| Efficient-cores | no data | 8 |
| Low Power Efficient-cores | no data | 2 |
| Threads | 32 | 14 |
| Base clock speed | 2.5 GHz | 1.7 GHz |
| Boost clock speed | 5.4 GHz | 4.8 GHz |
| L1 cache | 80 KB (per core) | 112 KB (per core) |
| L2 cache | 1 MB (per core) | 2 MB (per core) |
| L3 cache | 64 MB (shared) | 12 MB (shared) |
| Chip lithography | 4 nm | 7 nm |
| Die size | 2x 70.6 mm2 | no data |
| Maximum core temperature | no data | 110 °C |
| Number of transistors | 16,630 million | no data |
| 64 bit support | + | + |
| Unlocked multiplier | + | - |
Compatibility
Information on Ryzen 9 9955HX and Core Ultra 7 155U 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 | FL1 | FCBGA2049 |
| Power consumption (TDP) | 55 Watt | + 12 MB |
Technologies and extensions
Technological solutions and additional instructions supported by Ryzen 9 9955HX and Core Ultra 7 155U. You'll probably need this information if you require some particular technology.
| Instruction set extensions | no data | Intel® SSE4.1, Intel® SSE4.2, Intel® AVX2 |
| AES-NI | + | + |
| AVX | + | + |
| vPro | no data | + |
| Enhanced SpeedStep (EIST) | no data | + |
| Speed Shift | no data | + |
| Turbo Boost Technology | no data | 2.0 |
| Hyper-Threading Technology | no data | + |
| TSX | - | + |
| Thermal Monitoring | - | + |
| Turbo Boost Max 3.0 | no data | - |
| Precision Boost 2 | + | no data |
| Deep Learning Boost | - | + |
| Supported AI Software Frameworks | - | OpenVINO™, WindowsML, ONNX RT |
Security technologies
Ryzen 9 9955HX and Core Ultra 7 155U technologies aimed at improving security, for example, by protecting against hacks.
| TXT | no data | + |
| EDB | no data | + |
| OS Guard | no data | + |
Virtualization technologies
Virtual machine speed-up technologies supported by Ryzen 9 9955HX and Core Ultra 7 155U are enumerated here.
| AMD-V | + | - |
| VT-d | no data | + |
| VT-x | no data | + |
| EPT | no data | + |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Ryzen 9 9955HX and Core Ultra 7 155U. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR5 | DDR5 |
| Maximum memory size | no data | 96 GB |
| Max memory channels | no data | 2 |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | AMD Radeon 610M ( - 2200 MHz) | Intel® Graphics |
| Quick Sync Video | - | + |
| Graphics max frequency | no data | 1.95 GHz |
Graphics interfaces
Available interfaces and connections of Ryzen 9 9955HX and Core Ultra 7 155U integrated GPUs.
| Number of displays supported | no data | 4 |
Graphics image quality
Maximum display resolutions supported by Ryzen 9 9955HX and Core Ultra 7 155U integrated GPUs, including resolutions over different interfaces.
| Max resolution over HDMI 1.4 | no data | 4096 x 2304 @ 60Hz (HDMI 2.1 TMDS)7680 x 4320 @ 60Hz (HDMI 2.1 FRL) |
| Max resolution over eDP | no data | 3840 x 2400 @ 120Hz |
| Max resolution over DisplayPort | no data | 7680 x 4320 @ 60Hz |
Graphics API support
APIs supported by Ryzen 9 9955HX and Core Ultra 7 155U integrated GPUs, sometimes API versions are included.
| DirectX | no data | 12.2 |
| OpenGL | no data | 4.6 |
Peripherals
Specifications and connection of peripherals supported by Ryzen 9 9955HX and Core Ultra 7 155U.
| PCIe version | 5.0 | 4.0 |
| PCI Express lanes | 28 | 20 |
Synthetic benchmarks
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.
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.
Cinebench 15 64-bit multi-core
Cinebench Release 15 Multi Core is a variant of Cinebench R15 which uses all the processor threads.
Cinebench 15 64-bit single-core
Cinebench R15 (standing for Release 15) is a benchmark made by Maxon, authors of Cinema 4D. It was superseded by later versions of Cinebench, which use more modern variants of Cinema 4D engine. The Single Core version (sometimes called Single-Thread) only uses a single processor thread to render a room full of reflective spheres and light sources.
Geekbench 5.5 Multi-Core
7-Zip Single
7-Zip
CrossMark Overall
WebXPRT 4 Overall
Blender v3.3 Classroom CPU(-)
Geekbench 6.4 Multi-Core
Geekbench 6.4 Single-Core
Pros & cons summary
| Performance score | 31.48 | 9.19 |
| Recency | 6 January 2025 | 14 December 2023 |
| Physical cores | 16 | 12 |
| Threads | 32 | 14 |
| Chip lithography | 4 nm | 7 nm |
Ryzen 9 9955HX has a 242.5% higher aggregate performance score, an age advantage of 1 year, 33.3% more physical cores and 128.6% more threads, and a 75% more advanced lithography process.
The AMD Ryzen 9 9955HX is our recommended choice as it beats the Intel Core Ultra 7 155U in performance tests.
Other comparisons
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