Ryzen 7 7840U vs Ryzen 9 5900H
Aggregate performance score
Ryzen 7 7840U outperforms Ryzen 9 5900H by a significant 22% based on our aggregate benchmark results.
Primary details
Comparing Ryzen 9 5900H and Ryzen 7 7840U processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | 582 | 427 |
| Place by popularity | not in top-100 | not in top-100 |
| Market segment | Laptop | Laptop |
| Series | AMD Cezanne (Zen 3, Ryzen 5000) | AMD Phoenix (Zen 4, Ryzen 7040) |
| Power efficiency | 27.21 | 53.17 |
| Architecture codename | Cezanne U (Zen 3) (2021−2022) | Phoenix-U (Zen 4) (2023) |
| Release date | 7 January 2021 (3 years ago) | May 2023 (1 year ago) |
Detailed specifications
Ryzen 9 5900H and Ryzen 7 7840U 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 | 8 (Octa-Core) | 8 (Octa-Core) |
| Threads | 16 | 16 |
| Base clock speed | 3.3 GHz | 3.3 GHz |
| Boost clock speed | 4.6 GHz | 5.1 GHz |
| L1 cache | 512 KB | 64K (per core) |
| L2 cache | 4 MB | 1 MB (per core) |
| L3 cache | 16 MB | 16 MB (shared) |
| Chip lithography | 7 nm | 4 nm |
| Die size | no data | 178 mm2 |
| Maximum core temperature | no data | 100 °C |
| Number of transistors | no data | 25,000 million |
| 64 bit support | + | + |
| Windows 11 compatibility | - | + |
Compatibility
Information on Ryzen 9 5900H and Ryzen 7 7840U 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 | no data | 1 |
| Socket | FP6 | FP8 |
| Power consumption (TDP) | 45 Watt | 28 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Ryzen 9 5900H and Ryzen 7 7840U. 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 | no data | + |
Virtualization technologies
Virtual machine speed-up technologies supported by Ryzen 9 5900H and Ryzen 7 7840U are enumerated here.
| AMD-V | - | + |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Ryzen 9 5900H and Ryzen 7 7840U. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | no data | DDR5-5600 |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card Compare | AMD Radeon RX Vega 8 (Ryzen 4000/5000) | AMD Radeon 780M |
Peripherals
Specifications and connection of peripherals supported by Ryzen 9 5900H and Ryzen 7 7840U.
| PCIe version | no data | 4.0 |
| PCI Express lanes | no data | 20 |
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.
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.
Pros & cons summary
| Performance score | 12.94 | 15.73 |
| Integrated graphics card | 9.04 | 18.31 |
| Chip lithography | 7 nm | 4 nm |
| Power consumption (TDP) | 45 Watt | 28 Watt |
Ryzen 7 7840U has a 21.6% higher aggregate performance score, 102.5% faster integrated GPU, a 75% more advanced lithography process, and 60.7% lower power consumption.
The Ryzen 7 7840U is our recommended choice as it beats the Ryzen 9 5900H in performance tests.
Should you still have questions on choice between Ryzen 9 5900H and Ryzen 7 7840U, ask them in Comments section, and we shall answer.
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