Ryzen 9 9955HX3D vs Athlon II X2 245
Aggregate performance score
Ryzen 9 9955HX3D outperforms Athlon II X2 245 by a whopping 5358% 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 | 2996 | 120 |
| Place by popularity | not in top-100 | not in top-100 |
| Cost-effectiveness evaluation | 5.89 | no data |
| Market segment | Desktop processor | Laptop |
| Series | no data | AMD Dragon Range (Zen 4, Ryzen 7045) |
| Power efficiency | 1.06 | 68.09 |
| Designer | AMD | AMD |
| Manufacturer | no data | TSMC |
| Architecture codename | Regor (2009−2013) | Fire Range-HX (Zen 5) (2025) |
| Release date | 23 July 2009 (16 years ago) | 6 January 2025 (less than a year ago) |
| Launch price (MSRP) | $35 | no data |
Cost-effectiveness evaluation
Performance per price, higher is better.
Performance to price scatter graph
Detailed specifications
Athlon II X2 245 and Ryzen 9 9955HX3D 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 | 2 (Dual-core) | 16 (Hexadeca-Core) |
| Threads | 2 | 32 |
| Base clock speed | 2.9 GHz | 2.5 GHz |
| Boost clock speed | 2.9 GHz | 5.4 GHz |
| L1 cache | 256 KB | 80 KB (per core) |
| L2 cache | 2 MB | 1 MB (per core) |
| L3 cache | 0 KB | 128 MB (shared) |
| Chip lithography | 45 nm | 4 nm |
| Die size | 117 mm2 | 2x 70.6 mm2 |
| Number of transistors | 410 million | 16,630 million |
| 64 bit support | + | + |
| Windows 11 compatibility | - | no data |
| Unlocked multiplier | - | + |
Compatibility
Information on Athlon II X2 245 and Ryzen 9 9955HX3D 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 | AM3 | FL1 |
| Power consumption (TDP) | 65 Watt | 55 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Athlon II X2 245 and Ryzen 9 9955HX3D. 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 Athlon II X2 245 and Ryzen 9 9955HX3D are enumerated here.
| AMD-V | - | + |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Athlon II X2 245 and Ryzen 9 9955HX3D. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR3 | DDR5 |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | On certain motherboards (Chipset feature) | AMD Radeon 610M ( - 2200 MHz) |
Peripherals
Specifications and connection of peripherals supported by Athlon II X2 245 and Ryzen 9 9955HX3D.
| PCIe version | 2.0 | 5.0 |
| PCI Express lanes | no data | 28 |
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.
Pros & cons summary
| Performance score | 0.64 | 34.93 |
| Recency | 23 July 2009 | 6 January 2025 |
| Physical cores | 2 | 16 |
| Threads | 2 | 32 |
| Chip lithography | 45 nm | 4 nm |
| Power consumption (TDP) | 65 Watt | 55 Watt |
Ryzen 9 9955HX3D has a 5357.8% higher aggregate performance score, an age advantage of 15 years, 700% more physical cores and 1500% more threads, a 1025% more advanced lithography process, and 18.2% lower power consumption.
The AMD Ryzen 9 9955HX3D is our recommended choice as it beats the AMD Athlon II X2 245 in performance tests.
Note that Athlon II X2 245 is a desktop processor while Ryzen 9 9955HX3D is a notebook one.
Other comparisons
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