Pentium 4405U vs Ryzen 7 7840S
Aggregate performance score
Ryzen 7 7840S outperforms Pentium 4405U by a whopping 1035% based on our aggregate benchmark results.
Primary details
Comparing Ryzen 7 7840S and Pentium 4405U processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | 467 | 2262 |
| Place by popularity | not in top-100 | not in top-100 |
| Market segment | Laptop | Laptop |
| Series | Phoenix (Zen 4, Ryzen 7040) | Intel Pentium |
| Power efficiency | 40.80 | 8.39 |
| Architecture codename | Phoenix-HS (Zen 4) (2023) | Skylake (2015−2016) |
| Release date | 5 January 2023 (1 year ago) | 1 September 2015 (9 years ago) |
| Launch price (MSRP) | no data | $161 |
Detailed specifications
Ryzen 7 7840S and Pentium 4405U 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) | 2 (Dual-core) |
| Threads | 16 | 4 |
| Base clock speed | 3.8 GHz | 2.1 GHz |
| Boost clock speed | 5.1 GHz | 2.1 GHz |
| Bus type | no data | OPI |
| Bus rate | no data | 4 GT/s |
| Multiplier | no data | 21 |
| L1 cache | 512 KB | 128 KB |
| L2 cache | 8 MB | 512 KB |
| L3 cache | 16 MB | 2 MB |
| Chip lithography | 4 nm | 14 nm |
| Die size | 178 mm2 | 98.57 mm2 |
| Maximum core temperature | 100 °C | 100 °C |
| Number of transistors | no data | 1750 Million |
| 64 bit support | + | + |
| Windows 11 compatibility | + | - |
Compatibility
Information on Ryzen 7 7840S and Pentium 4405U 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 (Uniprocessor) |
| Socket | FP7/FP7r2/FP8 | FCBGA1356 |
| Power consumption (TDP) | 35 Watt | 15 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Ryzen 7 7840S and Pentium 4405U. 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 | Intel® SSE4.1, Intel® SSE4.2 |
| AES-NI | + | + |
| FMA | + | - |
| AVX | + | + |
| Enhanced SpeedStep (EIST) | no data | + |
| My WiFi | no data | + |
| Turbo Boost Technology | no data | - |
| Hyper-Threading Technology | no data | + |
| Idle States | no data | + |
| Thermal Monitoring | - | + |
| Flex Memory Access | no data | + |
| Smart Response | no data | + |
Security technologies
Ryzen 7 7840S and Pentium 4405U technologies aimed at improving security, for example, by protecting against hacks.
| TXT | no data | - |
| EDB | no data | + |
| Secure Key | no data | + |
| Identity Protection | - | + |
| SGX | no data | Yes with Intel® ME |
| OS Guard | no data | - |
Virtualization technologies
Virtual machine speed-up technologies supported by Ryzen 7 7840S and Pentium 4405U are enumerated here.
| AMD-V | - | + |
| VT-d | no data | + |
| VT-x | no data | + |
| EPT | no data | + |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Ryzen 7 7840S and Pentium 4405U. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR5 | DDR3, DDR4 |
| Maximum memory size | no data | 32 GB |
| Max memory channels | no data | 2 |
| Maximum memory bandwidth | no data | 34.134 GB/s |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card Compare | AMD Radeon 780M ( - 2700 MHz) | Intel HD Graphics 510 |
| Max video memory | no data | 32 GB |
| Quick Sync Video | - | + |
| Clear Video | no data | + |
| Clear Video HD | no data | + |
| Graphics max frequency | no data | 950 MHz |
Graphics interfaces
Available interfaces and connections of Ryzen 7 7840S and Pentium 4405U integrated GPUs.
| Number of displays supported | no data | 3 |
| eDP | no data | + |
| DisplayPort | - | + |
| HDMI | - | + |
| DVI | no data | + |
Graphics image quality
Maximum display resolutions supported by Ryzen 7 7840S and Pentium 4405U integrated GPUs, including resolutions over different interfaces.
| 4K resolution support | no data | + |
| Max resolution over HDMI 1.4 | no data | 4096x2304@24Hz |
| Max resolution over eDP | no data | 4096x2304@60Hz |
| Max resolution over DisplayPort | no data | 4096x2304@60Hz |
| Max resolution over VGA | no data | N/A |
Graphics API support
APIs supported by Ryzen 7 7840S and Pentium 4405U integrated GPUs, sometimes API versions are included.
| DirectX | no data | 12 |
| OpenGL | no data | 4.4 |
Peripherals
Specifications and connection of peripherals supported by Ryzen 7 7840S and Pentium 4405U.
| PCIe version | no data | 2.0 |
| PCI Express lanes | no data | 10 |
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 | 15.09 | 1.33 |
| Integrated graphics card | 18.32 | 1.61 |
| Recency | 5 January 2023 | 1 September 2015 |
| Physical cores | 8 | 2 |
| Threads | 16 | 4 |
| Chip lithography | 4 nm | 14 nm |
| Power consumption (TDP) | 35 Watt | 15 Watt |
Ryzen 7 7840S has a 1034.6% higher aggregate performance score, 1037.9% faster integrated GPU, an age advantage of 7 years, 300% more physical cores and 300% more threads, and a 250% more advanced lithography process.
Pentium 4405U, on the other hand, has 133.3% lower power consumption.
The Ryzen 7 7840S is our recommended choice as it beats the Pentium 4405U in performance tests.
Should you still have questions on choice between Ryzen 7 7840S and Pentium 4405U, ask them in Comments section, and we shall answer.
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