Celeron M U3400 vs Phenom II X3 P840
Aggregate performance score
Phenom II X3 P840 outperforms Celeron M U3400 by a whopping 183% based on our aggregate benchmark results.
Primary details
Comparing Phenom II X3 P840 and Celeron M U3400 processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | 2582 | 3106 |
| Place by popularity | not in top-100 | not in top-100 |
| Market segment | Laptop | Laptop |
| Series | 3x AMD Phenom II | Intel Celeron M |
| Power efficiency | 3.10 | 1.52 |
| Architecture codename | Champlain (2010−2011) | Arrandale (2010−2011) |
| Release date | 4 October 2010 (14 years ago) | 24 May 2010 (14 years ago) |
Detailed specifications
Phenom II X3 P840 and Celeron M U3400 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 | 3 (Tri-Core) | 2 (Dual-core) |
| Threads | 3 | 2 |
| Boost clock speed | 1.9 GHz | 1.06 GHz |
| Bus rate | 3600 MHz | 2500 MHz |
| L1 cache | 384 KB | no data |
| L2 cache | 1.5 MB | 512 KB |
| L3 cache | no data | 2 MB |
| Chip lithography | 45 nm | 32 nm |
| Die size | no data | 81+114 mm2 |
| Maximum core temperature | no data | 105 °C |
| Number of transistors | no data | 382+177 Million |
| 64 bit support | + | + |
| Windows 11 compatibility | - | - |
Compatibility
Information on Phenom II X3 P840 and Celeron M U3400 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 | S1 | BGA1288 |
| Power consumption (TDP) | 25 Watt | 18 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Phenom II X3 P840 and Celeron M U3400. You'll probably need this information if you require some particular technology.
| Instruction set extensions | Virtualization, AMD64, Advanced Virus Protection, SSE(1,2,3,4a) | no data |
| VirusProtect | + | - |
| Enhanced SpeedStep (EIST) | no data | + |
| Idle States | no data | + |
| Thermal Monitoring | - | + |
| Flex Memory Access | no data | + |
| Fast Memory Access | no data | + |
Security technologies
Phenom II X3 P840 and Celeron M U3400 technologies aimed at improving security, for example, by protecting against hacks.
| EDB | no data | + |
Virtualization technologies
Virtual machine speed-up technologies supported by Phenom II X3 P840 and Celeron M U3400 are enumerated here.
| AMD-V | + | - |
| VT-x | no data | + |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Phenom II X3 P840 and Celeron M U3400. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR3 | DDR3 |
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 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.
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 | 0.82 | 0.29 |
| Recency | 4 October 2010 | 24 May 2010 |
| Physical cores | 3 | 2 |
| Threads | 3 | 2 |
| Chip lithography | 45 nm | 32 nm |
| Power consumption (TDP) | 25 Watt | 18 Watt |
Phenom II X3 P840 has a 182.8% higher aggregate performance score, an age advantage of 4 months, and 50% more physical cores and 50% more threads.
Celeron M U3400, on the other hand, has a 40.6% more advanced lithography process, and 38.9% lower power consumption.
The Phenom II X3 P840 is our recommended choice as it beats the Celeron M U3400 in performance tests.
Should you still have questions on choice between Phenom II X3 P840 and Celeron M U3400, ask them in Comments section, and we shall answer.
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