Phenom II X4 840T vs A6-5400K
Aggregate performance score
Phenom II X4 840T outperforms A6-5400K by an impressive 86% based on our aggregate benchmark results.
Primary details
Comparing A6-5400K and Phenom II X4 840T processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | 2614 | 2161 |
| Place by popularity | not in top-100 | not in top-100 |
| Cost-effectiveness evaluation | no data | 2.28 |
| Market segment | Desktop processor | Desktop processor |
| Power efficiency | 1.16 | 1.48 |
| Architecture codename | Trinity (2012−2013) | Zosma (2010−2011) |
| Release date | 2 October 2012 (12 years ago) | 1 September 2010 (14 years ago) |
| Launch price (MSRP) | no data | $80 |
Cost-effectiveness evaluation
Performance per price, higher is better.
Detailed specifications
A6-5400K and Phenom II X4 840T 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) | 4 (Quad-Core) |
| Threads | 2 | 4 |
| Base clock speed | 3.6 GHz | 2.9 GHz |
| Boost clock speed | 3.8 GHz | 3.2 GHz |
| L1 cache | 128 KB (per core) | 128 KB (per core) |
| L2 cache | 1 MB (per core) | 512 KB (per core) |
| L3 cache | 0 KB | 6 MB (shared) |
| Chip lithography | 32 nm | 45 nm |
| Die size | 246 mm2 | 346 mm2 |
| Maximum case temperature (TCase) | 70 °C | no data |
| Number of transistors | 1,178 million | 904 million |
| 64 bit support | + | + |
| Windows 11 compatibility | - | - |
| Unlocked multiplier | + | - |
Compatibility
Information on A6-5400K and Phenom II X4 840T 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 | FM2 | AM3 |
| Power consumption (TDP) | 65 Watt | 95 Watt |
Virtualization technologies
Virtual machine speed-up technologies supported by A6-5400K and Phenom II X4 840T are enumerated here.
| AMD-V | + | + |
Memory specs
Types, maximum amount and channel quantity of RAM supported by A6-5400K and Phenom II X4 840T. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR3 | DDR3 |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | Radeon HD 7540D | no data |
Peripherals
Specifications and connection of peripherals supported by A6-5400K and Phenom II X4 840T.
| PCIe version | no data | 2.0 |
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 | 0.80 | 1.49 |
| Recency | 2 October 2012 | 1 September 2010 |
| Physical cores | 2 | 4 |
| Threads | 2 | 4 |
| Chip lithography | 32 nm | 45 nm |
| Power consumption (TDP) | 65 Watt | 95 Watt |
A6-5400K has an age advantage of 2 years, a 40.6% more advanced lithography process, and 46.2% lower power consumption.
Phenom II X4 840T, on the other hand, has a 86.3% higher aggregate performance score, and 100% more physical cores and 100% more threads.
The Phenom II X4 840T is our recommended choice as it beats the A6-5400K in performance tests.
Should you still have questions on choice between A6-5400K and Phenom II X4 840T, ask them in Comments section, and we shall answer.
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