GX-420GI vs Ryzen 9 9955HX
Contents
Primary details
Comparing processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | 185 | not rated |
| Place by popularity | not in top-100 | not in top-100 |
| Market segment | Laptop | Laptop |
| Series | AMD Dragon Range (Zen 4, Ryzen 7045) | no data |
| Power efficiency | 49.37 | no data |
| Designer | AMD | AMD |
| Manufacturer | no data | GlobalFoundries |
| Architecture codename | Fire Range-HX (Zen 5) (2025) | Brown Falcon (2016) |
| Release date | 6 January 2025 (less than a year ago) | 23 February 2016 (9 years ago) |
Detailed specifications
Ryzen 9 9955HX and GX-420GI 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) | 4 (Quad-Core) |
| Threads | 32 | 4 |
| Base clock speed | no data | 2 GHz |
| Boost clock speed | 5.4 GHz | 2.2 GHz |
| L1 cache | 1.3 MB | 320 KB |
| L2 cache | 16 MB | 1 MB (per module) |
| L3 cache | 64 MB | no data |
| Chip lithography | no data | 28 nm |
| 64 bit support | + | + |
Compatibility
Information on Ryzen 9 9955HX and GX-420GI 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 | no data | 1 |
| Socket | no data | FP4 |
| Power consumption (TDP) | 55 Watt | 15 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Ryzen 9 9955HX and GX-420GI. You'll probably need this information if you require some particular technology.
| AES-NI | - | + |
| FMA | - | + |
| AVX | - | + |
Virtualization technologies
Virtual machine speed-up technologies supported by Ryzen 9 9955HX and GX-420GI are enumerated here.
| AMD-V | - | + |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Ryzen 9 9955HX and GX-420GI. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | no data | DDR4 |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | AMD Radeon 610M ( - 2200 MHz) | Radeon R7E 6CU |
Peripherals
Specifications and connection of peripherals supported by Ryzen 9 9955HX and GX-420GI.
| PCIe version | no data | 3.0 |
| PCI Express lanes | no data | 8 |
Pros & cons summary
| Recency | 6 January 2025 | 23 February 2016 |
| Physical cores | 16 | 4 |
| Threads | 32 | 4 |
| Power consumption (TDP) | 55 Watt | 15 Watt |
Ryzen 9 9955HX has an age advantage of 8 years, and 300% more physical cores and 700% more threads.
GX-420GI, on the other hand, has 266.7% lower power consumption.
We couldn't decide between AMD Ryzen 9 9955HX and AMD GX-420GI. We've got no test results to judge.
Other comparisons
We've compiled a selection of CPU comparisons, ranging from closely matched processors to other comparisons that may be of interest.
