Ryzen 7 7840U vs Celeron M U3400
Aggregate performance score
Ryzen 7 7840U outperforms Celeron M U3400 by a whopping 5328% based on our aggregate benchmark results.
Primary details
Comparing Celeron M U3400 and Ryzen 7 7840U processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | 3106 | 426 |
| Place by popularity | not in top-100 | not in top-100 |
| Market segment | Laptop | Laptop |
| Series | Intel Celeron M | AMD Phoenix (Zen 4, Ryzen 7040) |
| Power efficiency | 1.52 | 53.20 |
| Architecture codename | Arrandale (2010−2011) | Phoenix-U (Zen 4) (2023) |
| Release date | 24 May 2010 (14 years ago) | May 2023 (1 year ago) |
Detailed specifications
Celeron M U3400 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 | 2 (Dual-core) | 8 (Octa-Core) |
| Threads | 2 | 16 |
| Base clock speed | no data | 3.3 GHz |
| Boost clock speed | 1.06 GHz | 5.1 GHz |
| Bus rate | 2500 MHz | no data |
| L1 cache | no data | 64K (per core) |
| L2 cache | 512 KB | 1 MB (per core) |
| L3 cache | 2 MB | 16 MB (shared) |
| Chip lithography | 32 nm | 4 nm |
| Die size | 81+114 mm2 | 178 mm2 |
| Maximum core temperature | 105 °C | 100 °C |
| Number of transistors | 382+177 Million | 25,000 million |
| 64 bit support | + | + |
| Windows 11 compatibility | - | + |
Compatibility
Information on Celeron M U3400 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 | BGA1288 | FP8 |
| Power consumption (TDP) | 18 Watt | 28 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Celeron M U3400 and Ryzen 7 7840U. You'll probably need this information if you require some particular technology.
| AES-NI | - | + |
| AVX | - | + |
| Enhanced SpeedStep (EIST) | + | no data |
| Idle States | + | no data |
| Thermal Monitoring | + | - |
| Flex Memory Access | + | no data |
| Fast Memory Access | + | no data |
| Precision Boost 2 | no data | + |
Security technologies
Celeron M U3400 and Ryzen 7 7840U technologies aimed at improving security, for example, by protecting against hacks.
| EDB | + | no data |
Virtualization technologies
Virtual machine speed-up technologies supported by Celeron M U3400 and Ryzen 7 7840U are enumerated here.
| AMD-V | - | + |
| VT-x | + | no data |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Celeron M U3400 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 | no data | AMD Radeon 780M ( - 2700 MHz) |
Peripherals
Specifications and connection of peripherals supported by Celeron M U3400 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.
Cinebench 10 32-bit single-core
Cinebench R10 is an ancient ray tracing benchmark for processors by Maxon, authors of Cinema 4D. Its single core version uses just one CPU thread to render a futuristic looking motorcycle.
Cinebench 10 32-bit multi-core
Cinebench Release 10 Multi Core is a variant of Cinebench R10 using all the processor threads. Possible number of threads is limited by 16 in this version.
3DMark06 CPU
3DMark06 is a discontinued DirectX 9 benchmark suite from Futuremark. Its CPU part contains two scenarios, one dedicated to artificial intelligence pathfinding, another to game physics using PhysX package.
wPrime 32
wPrime 32M is a math multi-thread processor test, which calculates square roots of first 32 million integer numbers. Its result is measured in seconds, so that the less is benchmark result, the faster the processor.
Pros & cons summary
| Performance score | 0.29 | 15.74 |
| Physical cores | 2 | 8 |
| Threads | 2 | 16 |
| Chip lithography | 32 nm | 4 nm |
| Power consumption (TDP) | 18 Watt | 28 Watt |
Celeron M U3400 has 55.6% lower power consumption.
Ryzen 7 7840U, on the other hand, has a 5327.6% higher aggregate performance score, 300% more physical cores and 700% more threads, and a 700% more advanced lithography process.
The Ryzen 7 7840U is our recommended choice as it beats the Celeron M U3400 in performance tests.
Should you still have questions on choice between Celeron M U3400 and Ryzen 7 7840U, ask them in Comments section, and we shall answer.
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