Pentium N3540 vs Athlon X4 840
Aggregate performance score
Athlon X4 840 outperforms Pentium N3540 by a whopping 176% based on our aggregate benchmark results.
Primary details
Comparing Athlon X4 840 and Pentium N3540 processor market type (desktop or notebook), architecture, sales start time and price.
| Place in performance ranking | 1782 | 2534 |
| Place by popularity | not in top-100 | not in top-100 |
| Cost-effectiveness evaluation | 7.38 | no data |
| Market segment | Desktop processor | Laptop |
| Series | 4x Athlon | Intel Pentium |
| Architecture codename | Kaveri (2014−2015) | Bay Trail-M (2013−2014) |
| Release date | August 2014 (9 years ago) | 22 May 2014 (10 years ago) |
| Launch price (MSRP) | no data | $251 |
| Current price | $23 | $404 (1.6x MSRP) |
Cost-effectiveness evaluation
Performance per price, higher is better.
Detailed specifications
Athlon X4 840 and Pentium N3540 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) | 4 (Quad-Core) |
| Threads | 4 | 4 |
| Base clock speed | 3.1 GHz | 2.16 GHz |
| Boost clock speed | 3.8 GHz | 2.66 GHz |
| L1 cache | 256K | 224 KB |
| L2 cache | 4 MB | 2 MB |
| L3 cache | no data | 2 MB L2 Cache |
| Chip lithography | 28 nm | 22 nm |
| Die size | 245 mm2 | no data |
| Maximum core temperature | no data | 100 °C |
| Maximum case temperature (TCase) | 72 °C | no data |
| Number of transistors | 2,411 million | no data |
| 64 bit support | + | + |
| Windows 11 compatibility | - | - |
| Unlocked multiplier | Yes | No |
Compatibility
Information on Athlon X4 840 and Pentium N3540 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 | Socket FM2+ | FCBGA1170 |
| Power consumption (TDP) | 65 watt | 7.5 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Athlon X4 840 and Pentium N3540. You'll probably need this information if you require some particular technology.
| AES-NI | + | - |
| FMA | + | no data |
| AVX | + | no data |
| Enhanced SpeedStep (EIST) | no data | + |
| Turbo Boost Technology | no data | - |
| Hyper-Threading Technology | no data | - |
| Idle States | no data | + |
| Smart Connect | no data | + |
| Status | no data | Discontinued |
Security technologies
Athlon X4 840 and Pentium N3540 technologies aimed at improving security, for example, by protecting against hacks.
| EDB | no data | + |
| Secure Key | no data | + |
| Anti-Theft | no data | - |
Virtualization technologies
Virtual machine speed-up technologies supported by Athlon X4 840 and Pentium N3540 are enumerated here.
| AMD-V | + | no data |
| VT-d | no data | - |
| VT-x | no data | + |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Athlon X4 840 and Pentium N3540. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR3 | DDR3L-1333 |
| Maximum memory size | no data | 8 GB |
| Max memory channels | no data | 2 |
| Maximum memory bandwidth | no data | 21.32 GB/s |
| ECC memory support | no data | - |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | no data | Intel® HD Graphics for Intel Atom® Processor Z3700 Series |
| Quick Sync Video | no data | + |
| Graphics max frequency | no data | 896 MHz |
Graphics interfaces
Available interfaces and connections of Athlon X4 840 and Pentium N3540 integrated GPUs.
| Number of displays supported | no data | 2 |
Graphics API support
APIs supported by Athlon X4 840 and Pentium N3540 integrated GPUs, sometimes API versions are included.
| DirectX | no data | 11.2 |
Peripherals
Specifications and connection of peripherals supported by Athlon X4 840 and Pentium N3540.
| PCIe version | 3.0 | 2.0 |
| PCI Express lanes | 16 | 4 |
| USB revision | no data | 3.0 and 2.0 |
| Total number of SATA ports | no data | 2 |
| Number of USB ports | no data | 5 |
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.
Athlon X4 840 outperforms Pentium N3540 by 176% based on our aggregate benchmark results.
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.
Benchmark coverage: 68%
Athlon X4 840 outperforms Pentium N3540 by 174% in Passmark.
GeekBench 5 Single-Core
GeekBench 5 Single-Core is a cross-platform application developed in the form of CPU tests that independently recreate certain real-world tasks with which to accurately measure performance. This version uses only a single CPU core.
Benchmark coverage: 42%
Athlon X4 840 outperforms Pentium N3540 by 135% in GeekBench 5 Single-Core.
GeekBench 5 Multi-Core
GeekBench 5 Multi-Core is a cross-platform application developed in the form of CPU tests that independently recreate certain real-world tasks with which to accurately measure performance. This version uses all available CPU cores.
Benchmark coverage: 42%
Athlon X4 840 outperforms Pentium N3540 by 101% in GeekBench 5 Multi-Core.
Pros & cons summary
| Performance score | 2.15 | 0.78 |
| Recency | on August 2014 | 22 May 2014 |
| Chip lithography | 28 nm | 22 nm |
| Power consumption (TDP) | 65 Watt | 7 Watt |
The Athlon X4 840 is our recommended choice as it beats the Pentium N3540 in performance tests.
Note that Athlon X4 840 is a desktop processor while Pentium N3540 is a notebook one.
Should you still have questions on choice between Athlon X4 840 and Pentium N3540, ask them in Comments section, and we shall answer.
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