Ryzen 5 PRO 7540U vs Ryzen 7 7840S
Aggregate performance score
Ryzen 7 7840S outperforms Ryzen 5 PRO 7540U by a substantial 33% based on our aggregate benchmark results.
Primary details
Comparing Ryzen 7 7840S and Ryzen 5 PRO 7540U processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | 452 | 678 |
| Place by popularity | not in top-100 | not in top-100 |
| Market segment | Laptop | Laptop |
| Series | Phoenix (Zen 4, Ryzen 7040) | AMD Phoenix (Zen 4, Ryzen 7040) |
| Power efficiency | 41.37 | 72.37 |
| Architecture codename | Phoenix-HS (Zen 4) (2023) | Phoenix (Zen4) (2023) |
| Release date | 5 January 2023 (1 year ago) | 23 May 2023 (1 year ago) |
Detailed specifications
Ryzen 7 7840S and Ryzen 5 PRO 7540U 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) | 6 (Hexa-Core) |
| Threads | 16 | 12 |
| Base clock speed | 3.8 GHz | 3.2 GHz |
| Boost clock speed | 5.1 GHz | 4.9 GHz |
| L1 cache | 512 KB | 384 KB |
| L2 cache | 8 MB | 6 MB |
| L3 cache | 16 MB | 16 MB |
| Chip lithography | 4 nm | 4 nm |
| Die size | 178 mm2 | 178 mm2 |
| Maximum core temperature | 100 °C | 100 °C |
| 64 bit support | + | + |
| Windows 11 compatibility | + | + |
Compatibility
Information on Ryzen 7 7840S and Ryzen 5 PRO 7540U 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.
| Socket | FP7/FP7r2/FP8 | no data |
| Power consumption (TDP) | 35 Watt | 15 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Ryzen 7 7840S and Ryzen 5 PRO 7540U. You'll probably need this information if you require some particular technology.
| Instruction set extensions | Ryzen AI, MMX, SSE, SSE2, SSE3, SSSE3, SSE4A, SSE4.1, SSE4.2, AVX, AVX2, AVX-512, BMI2, ABM, FMA, ADX, SMEP, SMAP, SMT, CPB, AES-NI, RDRAND, RDSEED, SHA, SME | no data |
| AES-NI | + | - |
| FMA | + | - |
| AVX | + | - |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Ryzen 7 7840S and Ryzen 5 PRO 7540U. 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 780M | AMD Radeon 740M |
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 | 15.30 | 11.47 |
| Integrated graphics card | 18.31 | 8.33 |
| Recency | 5 January 2023 | 23 May 2023 |
| Physical cores | 8 | 6 |
| Threads | 16 | 12 |
| Power consumption (TDP) | 35 Watt | 15 Watt |
Ryzen 7 7840S has a 33.4% higher aggregate performance score, 119.8% faster integrated GPU, and 33.3% more physical cores and 33.3% more threads.
Ryzen 5 PRO 7540U, on the other hand, has an age advantage of 4 months, and 133.3% lower power consumption.
The Ryzen 7 7840S is our recommended choice as it beats the Ryzen 5 PRO 7540U in performance tests.
Should you still have questions on choice between Ryzen 7 7840S and Ryzen 5 PRO 7540U, ask them in Comments section, and we shall answer.
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