Ryzen 9 9900X3D vs A6-4455M
Aggregate performance score
Ryzen 9 9900X3D outperforms A6-4455M by a whopping 6841% 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 | 3173 | 161 |
| Place by popularity | not in top-100 | not in top-100 |
| Cost-effectiveness evaluation | no data | 59.43 |
| Market segment | Laptop | Desktop processor |
| Series | AMD A-Series | no data |
| Power efficiency | 2.90 | 28.55 |
| Designer | AMD | AMD |
| Manufacturer | no data | TSMC |
| Architecture codename | Trinity (2012−2013) | Granite Ridge (2024−2025) |
| Release date | 15 May 2012 (13 years ago) | 6 January 2025 (less than a year ago) |
| Launch price (MSRP) | no data | $599 |
Cost-effectiveness evaluation
Performance per price, higher is better.
Performance to price scatter graph
Detailed specifications
A6-4455M and Ryzen 9 9900X3D 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) | 12 (Dodeca-Core) |
| Threads | 2 | 24 |
| Base clock speed | 2.1 GHz | 4.4 GHz |
| Boost clock speed | 2.6 GHz | 5.5 GHz |
| L1 cache | 92 KB | 80 KB (per core) |
| L2 cache | 2 MB (shared) | 1 MB (per core) |
| L3 cache | 0 KB | 128 MB (shared) |
| Chip lithography | 32 nm | 4 nm |
| Die size | 246 mm2 | 2x 70.6 mm2 |
| Maximum case temperature (TCase) | 100 °C | no data |
| Number of transistors | 1,178 million | 16,630 million |
| 64 bit support | + | + |
| Windows 11 compatibility | - | no data |
| Unlocked multiplier | - | + |
Compatibility
Information on A6-4455M and Ryzen 9 9900X3D 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 | FP2 | AM5 |
| Power consumption (TDP) | 17 Watt | 120 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by A6-4455M and Ryzen 9 9900X3D. You'll probably need this information if you require some particular technology.
| Instruction set extensions | 86x SSE (1, 2, 3, 3S, 4.1, 4.2, 4A),-64, AES, AVX, FMA | no data |
| AES-NI | + | + |
| FMA | + | - |
| AVX | + | + |
| Precision Boost 2 | no data | + |
Virtualization technologies
Virtual machine speed-up technologies supported by A6-4455M and Ryzen 9 9900X3D are enumerated here.
| AMD-V | + | + |
Memory specs
Types, maximum amount and channel quantity of RAM supported by A6-4455M and Ryzen 9 9900X3D. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | unknown Dual-channel | DDR5 |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | AMD Radeon HD 7500G (327 - 424 MHz) | AMD Radeon Graphics |
Peripherals
Specifications and connection of peripherals supported by A6-4455M and Ryzen 9 9900X3D.
| PCIe version | no data | 5.0 |
| PCI Express lanes | no data | 24 |
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.
GeekBench 5 Single-Core
GeekBench 5 Single-Core is a cross-platform application developed in the form of CPU tests that independently recreate certain real-world tasks with which to accurately measure performance. This version uses only a single CPU core.
GeekBench 5 Multi-Core
GeekBench 5 Multi-Core is a cross-platform application developed in the form of CPU tests that independently recreate certain real-world tasks with which to accurately measure performance. This version uses all available CPU cores.
Pros & cons summary
| Performance score | 0.46 | 31.93 |
| Integrated graphics card | 0.76 | 1.83 |
| Recency | 15 May 2012 | 6 January 2025 |
| Physical cores | 2 | 12 |
| Threads | 2 | 24 |
| Chip lithography | 32 nm | 4 nm |
| Power consumption (TDP) | 17 Watt | 120 Watt |
A6-4455M has 605.9% lower power consumption.
Ryzen 9 9900X3D, on the other hand, has a 6841.3% higher aggregate performance score, 140.8% faster integrated GPU, an age advantage of 12 years, 500% more physical cores and 1100% more threads, and a 700% more advanced lithography process.
The AMD Ryzen 9 9900X3D is our recommended choice as it beats the AMD A6-4455M in performance tests.
Be aware that A6-4455M is a notebook processor while Ryzen 9 9900X3D is a desktop one.
Other comparisons
We've compiled a selection of CPU comparisons, ranging from closely matched processors to other comparisons that may be of interest.
