Ryzen 9 7945HX3D vs Ryzen 3 5125C
Contents
Primary details
Comparing processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | not rated | 144 |
| Place by popularity | not in top-100 | not in top-100 |
| Market segment | Laptop | Laptop |
| Series | AMD Cezanne (Zen 3, Ryzen 5000) | AMD Dragon Range (Zen 4, Ryzen 7045) |
| Power efficiency | no data | 25.30 |
| Designer | AMD | AMD |
| Manufacturer | TSMC | TSMC |
| Architecture codename | Barcelo (Zen 3) (2022−2023) | Dragon Range-HX (Zen 4) (2023−2024) |
| Release date | 5 May 2022 (3 years ago) | 27 July 2023 (2 years ago) |
Detailed specifications
Ryzen 3 5125C and Ryzen 9 7945HX3D 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 | 4 | 32 |
| Base clock speed | 3 GHz | 2.3 GHz |
| Boost clock speed | 3 GHz | 5.4 GHz |
| L1 cache | 64K (per core) | 64 KB (per core) |
| L2 cache | 512K (per core) | 1 MB (per core) |
| L3 cache | 8 MB (shared) | 128 MB (shared) |
| Chip lithography | 7 nm | 5 nm |
| Die size | 180 mm2 | 2x 71 mm2 |
| Maximum core temperature | 95 °C | 89 °C |
| Number of transistors | 10,700 million | 17,840 million |
| 64 bit support | + | + |
| Windows 11 compatibility | + | no data |
| Unlocked multiplier | - | + |
Compatibility
Information on Ryzen 3 5125C and Ryzen 9 7945HX3D 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 | FP6 | FL1 |
| Power consumption (TDP) | 15 Watt | 55 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Ryzen 3 5125C and Ryzen 9 7945HX3D. You'll probably need this information if you require some particular technology.
| Instruction set extensions | XFR, FMA3, SSE 4.2, AVX2, SMT | no data |
| AES-NI | + | + |
| AVX | + | + |
| Precision Boost 2 | + | + |
Virtualization technologies
Virtual machine speed-up technologies supported by Ryzen 3 5125C and Ryzen 9 7945HX3D are enumerated here.
| AMD-V | + | + |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Ryzen 3 5125C and Ryzen 9 7945HX3D. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR4-3200 | DDR5-5200 |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | AMD Radeon RX Vega 3 ( - 1200 MHz) | AMD Radeon 610M (400 - 2200 MHz) |
Peripherals
Specifications and connection of peripherals supported by Ryzen 3 5125C and Ryzen 9 7945HX3D.
| PCIe version | 3.0 | 5.0 |
| PCI Express lanes | 8 | 28 |
Synthetic benchmarks
Various benchmark results of the processors in comparison. Overall score is measured in points in 0-100 range, higher is better.
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
| Integrated graphics card | 2.75 | 2.65 |
| Recency | 5 May 2022 | 27 July 2023 |
| Physical cores | 2 | 16 |
| Threads | 4 | 32 |
| Chip lithography | 7 nm | 5 nm |
| Power consumption (TDP) | 15 Watt | 55 Watt |
Ryzen 3 5125C has 3.8% faster integrated GPU, and 266.7% lower power consumption.
Ryzen 9 7945HX3D, on the other hand, has an age advantage of 1 year, 700% more physical cores and 700% more threads, and a 40% more advanced lithography process.
We couldn't decide between AMD Ryzen 3 5125C and AMD Ryzen 9 7945HX3D. 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.
