Atom x5-E3940 vs E-450
Aggregate performance score
Atom x5-E3940 outperforms E-450 by a whopping 140% based on our aggregate benchmark results.
Contents
Primary details
Comparing processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | 3196 | 2664 |
| Place by popularity | not in top-100 | not in top-100 |
| Market segment | Laptop | Laptop |
| Series | AMD E-Series | 5x Intel Atom |
| Power efficiency | 2.56 | 11.04 |
| Designer | AMD | Intel |
| Manufacturer | no data | Intel |
| Architecture codename | Zacate (2011−2013) | Apollo Lake (2014−2016) |
| Release date | 22 August 2011 (14 years ago) | 30 August 2014 (11 years ago) |
Detailed specifications
E-450 and Atom x5-E3940 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 | no data | 1.6 GHz |
| Boost clock speed | 1.65 GHz | 1.8 GHz |
| L1 cache | 64K (per core) | 56K (per core) |
| L2 cache | 512K (per core) | 2 MB (shared) |
| L3 cache | 0 KB | 0 KB |
| Chip lithography | 40 nm | 14 nm |
| Die size | 75 mm2 | no data |
| Maximum case temperature (TCase) | no data | 103 °C |
| 64 bit support | + | + |
| Windows 11 compatibility | - | - |
Compatibility
Information on E-450 and Atom x5-E3940 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 (Uniprocessor) |
| Socket | FT1 BGA 413-Ball | Intel BGA 1296 |
| Power consumption (TDP) | 18 Watt | 10 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by E-450 and Atom x5-E3940. You'll probably need this information if you require some particular technology.
| Instruction set extensions | MMX(+), SSE(1,2,3,3S,4A), AMD-V | no data |
| AES-NI | - | + |
| Enhanced SpeedStep (EIST) | no data | + |
Security technologies
E-450 and Atom x5-E3940 technologies aimed at improving security, for example, by protecting against hacks.
| TXT | no data | + |
Virtualization technologies
Virtual machine speed-up technologies supported by E-450 and Atom x5-E3940 are enumerated here.
| AMD-V | + | - |
| VT-d | no data | + |
| VT-x | no data | + |
Memory specs
Types, maximum amount and channel quantity of RAM supported by E-450 and Atom x5-E3940. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR3 Single-channel | DDR3-1866 |
| Maximum memory size | no data | 8 GB |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | AMD Radeon HD 6320 | Intel HD Graphics 500 |
Peripherals
Specifications and connection of peripherals supported by E-450 and Atom x5-E3940.
| PCIe version | no data | 2.0 |
| PCI Express lanes | no data | 4 |
Synthetic benchmarks
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.
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. Other than that, Passmark measures multi-core performance.
Pros & cons summary
| Performance score | 0.43 | 1.03 |
| Integrated graphics card | 0.35 | 0.72 |
| Recency | 22 August 2011 | 30 August 2014 |
| Physical cores | 2 | 4 |
| Threads | 2 | 4 |
| Chip lithography | 40 nm | 14 nm |
| Power consumption (TDP) | 18 Watt | 10 Watt |
Atom x5-E3940 has a 139.5% higher aggregate performance score, 105.7% faster integrated GPU, an age advantage of 3 years, 100% more physical cores and 100% more threads, a 185.7% more advanced lithography process, and 80% lower power consumption.
The Intel Atom x5-E3940 is our recommended choice as it beats the AMD E-450 in performance tests.
Other comparisons
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