Ryzen 5 7645HX vs Ryzen 9 PRO 5945
Aggregate performance score
Ryzen 9 PRO 5945 outperforms Ryzen 5 7645HX by a substantial 32% 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 | 334 | 515 |
| Place by popularity | not in top-100 | not in top-100 |
| Market segment | Desktop processor | Laptop |
| Power efficiency | 12.78 | 13.95 |
| Designer | AMD | AMD |
| Manufacturer | TSMC | TSMC |
| Architecture codename | Vermeer (2020−2025) | Dragon Range (Zen4) (2023) |
| Release date | 4 April 2022 (3 years ago) | 4 January 2023 (2 years ago) |
Detailed specifications
Ryzen 9 PRO 5945 and Ryzen 5 7645HX 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 | 12 (Dodeca-Core) | 6 (Hexa-Core) |
| Threads | 24 | 12 |
| Base clock speed | 3 GHz | 4 GHz |
| Boost clock speed | 4.7 GHz | 5 GHz |
| L1 cache | 64 KB (per core) | 64K (per core) |
| L2 cache | 512 KB (per core) | 1 MB (per core) |
| L3 cache | 64 MB | 32 MB (shared) |
| Chip lithography | 7 nm | 5 nm |
| Die size | 2x 74 mm2 | 71 mm2 |
| Maximum core temperature | no data | 100 °C |
| Maximum case temperature (TCase) | 95 °C | no data |
| Number of transistors | 8,300 million | 6570 Million |
| 64 bit support | + | + |
| Windows 11 compatibility | + | + |
Compatibility
Information on Ryzen 9 PRO 5945 and Ryzen 5 7645HX 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 | AM4 | FL1 |
| Power consumption (TDP) | 65 Watt | 45 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Ryzen 9 PRO 5945 and Ryzen 5 7645HX. You'll probably need this information if you require some particular technology.
| AES-NI | + | + |
| AVX | + | + |
| Precision Boost 2 | + | + |
Virtualization technologies
Virtual machine speed-up technologies supported by Ryzen 9 PRO 5945 and Ryzen 5 7645HX are enumerated here.
| AMD-V | + | + |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Ryzen 9 PRO 5945 and Ryzen 5 7645HX. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR4 | DDR5-5200 |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | N/A | AMD Radeon 610M (400 - 2200 MHz) |
Peripherals
Specifications and connection of peripherals supported by Ryzen 9 PRO 5945 and Ryzen 5 7645HX.
| PCIe version | 4.0 | 5.0 |
| PCI Express lanes | 20 | 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.
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 | 19.66 | 14.85 |
| Recency | 4 April 2022 | 4 January 2023 |
| Physical cores | 12 | 6 |
| Threads | 24 | 12 |
| Chip lithography | 7 nm | 5 nm |
| Power consumption (TDP) | 65 Watt | 45 Watt |
Ryzen 9 PRO 5945 has a 32.4% higher aggregate performance score, and 100% more physical cores and 100% more threads.
Ryzen 5 7645HX, on the other hand, has an age advantage of 9 months, a 40% more advanced lithography process, and 44.4% lower power consumption.
The AMD Ryzen 9 PRO 5945 is our recommended choice as it beats the AMD Ryzen 5 7645HX in performance tests.
Note that Ryzen 9 PRO 5945 is a desktop processor while Ryzen 5 7645HX is a notebook one.
Other comparisons
We've compiled a selection of CPU comparisons, ranging from closely matched processors to other comparisons that may be of interest.
