Ryzen 9 5900H vs Ryzen 5 PRO 7645
Aggregate performance score
Ryzen 5 PRO 7645 outperforms Ryzen 9 5900H by a substantial 33% based on our aggregate benchmark results.
Primary details
Comparing Ryzen 5 PRO 7645 and Ryzen 9 5900H processor market type (desktop or notebook), architecture, sales start time and price.
| Place in performance ranking | 330 | 531 |
| Place by popularity | not in top-100 | not in top-100 |
| Market segment | Server | Laptop |
| Series | no data | AMD Cezanne (Zen 3, Ryzen 5000) |
| Architecture codename | Raphael | Cezanne U (Zen 3) (2021−2022) |
| Release date | 13 June 2023 (1 year ago) | 7 January 2021 (3 years ago) |
Detailed specifications
Ryzen 5 PRO 7645 and Ryzen 9 5900H 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 | 6 (Hexa-Core) | 8 (Octa-Core) |
| Threads | 12 | 16 |
| Base clock speed | 3.8 GHz | 3.3 GHz |
| Boost clock speed | 5.1 GHz | 4.6 GHz |
| L1 cache | 64 KB (per core) | 512 KB |
| L2 cache | 1 MB (per core) | 4 MB |
| L3 cache | 32 MB (shared) | 16 MB |
| Chip lithography | 5 nm | 7 nm |
| Die size | 71 mm2 | no data |
| Maximum case temperature (TCase) | 61 °C | no data |
| Number of transistors | 6,570 million | no data |
| 64 bit support | + | + |
| Windows 11 compatibility | no data | - |
| Unlocked multiplier | No | No |
Compatibility
Information on Ryzen 5 PRO 7645 and Ryzen 9 5900H 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 | no data |
| Socket | AM5 | FP6 |
| Power consumption (TDP) | 65 Watt | 45 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Ryzen 5 PRO 7645 and Ryzen 9 5900H. You'll probably need this information if you require some particular technology.
| Instruction set extensions | no data | XFR, FMA3, SSE 4.2, AVX2, SMT |
| AES-NI | + | no data |
| AVX | + | no data |
Virtualization technologies
Virtual machine speed-up technologies supported by Ryzen 5 PRO 7645 and Ryzen 9 5900H are enumerated here.
| AMD-V | + | no data |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Ryzen 5 PRO 7645 and Ryzen 9 5900H. 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 Compare | AMD Radeon Graphics | AMD Radeon RX Vega 8 (Ryzen 4000/5000) |
Peripherals
Specifications and connection of peripherals supported by Ryzen 5 PRO 7645 and Ryzen 9 5900H.
| PCIe version | 5.0 | no data |
| PCI Express lanes | 24 | no data |
Synthetic benchmark performance
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. We are regularly improving our combining algorithms, but if you find some perceived inconsistencies, feel free to speak up in comments section, we usually fix problems quickly.
Ryzen 5 PRO 7645 outperforms Ryzen 9 5900H by 33% based on our aggregate benchmark results.
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.
Benchmark coverage: 68%
Ryzen 5 PRO 7645 outperforms Ryzen 9 5900H by 33% in Passmark.
Pros & cons summary
| Performance score | 17.62 | 13.29 |
| Recency | 13 June 2023 | 7 January 2021 |
| Physical cores | 6 | 8 |
| Threads | 12 | 16 |
| Chip lithography | 5 nm | 7 nm |
| Power consumption (TDP) | 65 Watt | 45 Watt |
The Ryzen 5 PRO 7645 is our recommended choice as it beats the Ryzen 9 5900H in performance tests.
Be aware that Ryzen 5 PRO 7645 is a server/workstation processor while Ryzen 9 5900H is a notebook one.
Should you still have questions on choice between Ryzen 5 PRO 7645 and Ryzen 9 5900H, ask them in Comments section, and we shall answer.
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