Ryzen 7 7840U vs Atom E3845
Aggregate performance score
Ryzen 7 7840U outperforms Atom E3845 by a whopping 2268% based on our aggregate benchmark results.
Primary details
Comparing Atom E3845 and Ryzen 7 7840U processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | 2715 | 420 |
| Place by popularity | not in top-100 | not in top-100 |
| Market segment | Laptop | Laptop |
| Series | Atom | AMD Phoenix (Zen 4, Ryzen 7040) |
| Power efficiency | 6.28 | 53.11 |
| Architecture codename | Bay Trail-I (2013) | Phoenix-U (Zen 4) (2023) |
| Release date | 8 October 2013 (10 years ago) | May 2023 (1 year ago) |
Detailed specifications
Atom E3845 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 | 4 (Quad-Core) | 8 (Octa-Core) |
| Threads | 4 | 16 |
| Base clock speed | no data | 3.3 GHz |
| Boost clock speed | 1.91 GHz | 5.1 GHz |
| L1 cache | 64 KB (per core) | 64K (per core) |
| L2 cache | 512 KB (per core) | 1 MB (per core) |
| L3 cache | 0 KB | 16 MB (shared) |
| Chip lithography | 22 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 Atom E3845 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 | 1 | 1 |
| Socket | Intel BGA1170 | FP8 |
| Power consumption (TDP) | 10 Watt | 28 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Atom E3845 and Ryzen 7 7840U. You'll probably need this information if you require some particular technology.
| AES-NI | - | + |
| AVX | - | + |
| Enhanced SpeedStep (EIST) | + | no data |
| Precision Boost 2 | no data | + |
Virtualization technologies
Virtual machine speed-up technologies supported by Atom E3845 and Ryzen 7 7840U are enumerated here.
| AMD-V | - | + |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Atom E3845 and Ryzen 7 7840U. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR3 | DDR5-5600 |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card Compare | Intel HD Graphics | AMD Radeon 780M |
Peripherals
Specifications and connection of peripherals supported by Atom E3845 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 | 0.69 | 16.34 |
| Integrated graphics card | 0.77 | 18.29 |
| Physical cores | 4 | 8 |
| Threads | 4 | 16 |
| Chip lithography | 22 nm | 4 nm |
| Power consumption (TDP) | 10 Watt | 28 Watt |
Atom E3845 has 180% lower power consumption.
Ryzen 7 7840U, on the other hand, has a 2268.1% higher aggregate performance score, 2275.3% faster integrated GPU, 100% more physical cores and 300% more threads, and a 450% more advanced lithography process.
The Ryzen 7 7840U is our recommended choice as it beats the Atom E3845 in performance tests.
Should you still have questions on choice between Atom E3845 and Ryzen 7 7840U, ask them in Comments section, and we shall answer.
Similar processor comparisons
We picked several similar comparisons of processors in the same market segment and performance relatively close to those reviewed on this page.
