Phenom X4 9950 BE (140W) vs Ryzen 9 9955HX
Contents
Primary details
Comparing processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | 162 | not rated |
| Place by popularity | not in top-100 | not in top-100 |
| Market segment | Laptop | Desktop processor |
| Series | AMD Dragon Range (Zen 4, Ryzen 7045) | no data |
| Power efficiency | 61.52 | no data |
| Designer | AMD | AMD |
| Manufacturer | TSMC | no data |
| Architecture codename | Fire Range-HX (Zen 5) (2025) | Agena (2007−2008) |
| Release date | 6 January 2025 (less than a year ago) | March 2008 (17 years ago) |
Detailed specifications
Ryzen 9 9955HX and Phenom X4 9950 BE (140W) 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 | 2.5 GHz | no data |
| Boost clock speed | 5.4 GHz | 2.6 GHz |
| L1 cache | 80 KB (per core) | 128 KB (per core) |
| L2 cache | 1 MB (per core) | 512 KB (per core) |
| L3 cache | 64 MB (shared) | 2 MB (shared) |
| Chip lithography | 4 nm | 65 nm |
| Die size | 2x 70.6 mm2 | 285 mm2 |
| Number of transistors | 16,630 million | 450 million |
| 64 bit support | + | + |
| Windows 11 compatibility | no data | - |
| Unlocked multiplier | + | + |
Compatibility
Information on Ryzen 9 9955HX and Phenom X4 9950 BE (140W) 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 | AM2+ |
| Power consumption (TDP) | 55 Watt | 140 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Ryzen 9 9955HX and Phenom X4 9950 BE (140W). You'll probably need this information if you require some particular technology.
| AES-NI | + | - |
| AVX | + | - |
| Precision Boost 2 | + | no data |
Virtualization technologies
Virtual machine speed-up technologies supported by Ryzen 9 9955HX and Phenom X4 9950 BE (140W) are enumerated here.
| AMD-V | + | + |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Ryzen 9 9955HX and Phenom X4 9950 BE (140W). Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR5 | no data |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | AMD Radeon 610M ( - 2200 MHz) | no data |
Peripherals
Specifications and connection of peripherals supported by Ryzen 9 9955HX and Phenom X4 9950 BE (140W).
| PCIe version | 5.0 | no data |
| PCI Express lanes | 28 | no data |
Pros & cons summary
| Physical cores | 16 | 4 |
| Threads | 32 | 4 |
| Chip lithography | 4 nm | 65 nm |
| Power consumption (TDP) | 55 Watt | 140 Watt |
Ryzen 9 9955HX has 300% more physical cores and 700% more threads, a 1525% more advanced lithography process, and 154.5% lower power consumption.
We couldn't decide between AMD Ryzen 9 9955HX and AMD Phenom X4 9950 BE (140W). We've got no test results to judge.
Be aware that Ryzen 9 9955HX is a notebook processor while Phenom X4 9950 BE (140W) is a desktop one.
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