Core 2 Duo E6540 vs Atom x5-Z8550
Aggregate performance score
Atom x5-Z8550 outperforms Core 2 Duo E6540 by a considerable 41% based on our aggregate benchmark results.
Primary details
Comparing Atom x5-Z8550 and Core 2 Duo E6540 processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | 2687 | 2870 |
| Place by popularity | not in top-100 | not in top-100 |
| Market segment | Laptop | Desktop processor |
| Series | 5x Intel Atom | no data |
| Power efficiency | no data | 0.74 |
| Architecture codename | Cherry Trail (2015−2016) | no data |
| Release date | 8 February 2016 (8 years ago) | 1 July 2007 (17 years ago) |
Detailed specifications
Atom x5-Z8550 and Core 2 Duo E6540 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) | 2 (Dual-core) |
| Threads | 4 | no data |
| Base clock speed | 1.44 GHz | 2.33 GHz |
| Boost clock speed | 2.4 GHz | no data |
| Bus rate | no data | 1333 MHz |
| L2 cache | 2 MB | no data |
| L3 cache | 0 KB | 4 MB L2 Cache |
| Chip lithography | 14 nm | 65 nm |
| Maximum core temperature | 90 °C | 72 °C |
| 64 bit support | + | + |
| Windows 11 compatibility | - | - |
| VID voltage range | no data | 0.85V-1.5V |
Compatibility
Information on Atom x5-Z8550 and Core 2 Duo E6540 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 (Uniprocessor) | no data |
| Socket | UTFCBGA1380 | PLGA775 |
| Power consumption (TDP) | no data | 65 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Atom x5-Z8550 and Core 2 Duo E6540. You'll probably need this information if you require some particular technology.
| AES-NI | + | - |
| Enhanced SpeedStep (EIST) | + | + |
| Turbo Boost Technology | no data | - |
| Hyper-Threading Technology | no data | - |
| Idle States | no data | + |
| Thermal Monitoring | - | + |
| Demand Based Switching | no data | - |
| Turbo Boost Max 3.0 | - | no data |
| FSB parity | no data | - |
Security technologies
Atom x5-Z8550 and Core 2 Duo E6540 technologies aimed at improving security, for example, by protecting against hacks.
| TXT | no data | - |
| EDB | no data | + |
| Secure Boot | + | no data |
| Identity Protection | + | - |
Virtualization technologies
Virtual machine speed-up technologies supported by Atom x5-Z8550 and Core 2 Duo E6540 are enumerated here.
| VT-x | + | + |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Atom x5-Z8550 and Core 2 Duo E6540. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR3 | no data |
| Maximum memory size | 8 GB | no data |
| Max memory channels | 2 | no data |
| Maximum memory bandwidth | 25.6 GB/s | no data |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | Intel HD Graphics 400 (Braswell) | no data |
| Max video memory | 8 GB | no data |
| Graphics max frequency | 600 MHz | no data |
| Execution Units | 12 | no data |
Graphics interfaces
Available interfaces and connections of Atom x5-Z8550 and Core 2 Duo E6540 integrated GPUs.
| Number of displays supported | 3 | no data |
Graphics image quality
Maximum display resolutions supported by Atom x5-Z8550 and Core 2 Duo E6540 integrated GPUs, including resolutions over different interfaces.
| Max resolution over HDMI 1.4 | 3840x2160 | no data |
| Max resolution over eDP | 2560x1600 | no data |
Peripherals
Specifications and connection of peripherals supported by Atom x5-Z8550 and Core 2 Duo E6540.
| PCIe version | 2.0 | no data |
| PCI Express lanes | 2 | no data |
| USB revision | 3.0 | no data |
| Number of USB ports | 3 | no data |
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 | 0.72 | 0.51 |
| Recency | 8 February 2016 | 1 July 2007 |
| Physical cores | 4 | 2 |
| Chip lithography | 14 nm | 65 nm |
Atom x5-Z8550 has a 41.2% higher aggregate performance score, an age advantage of 8 years, 100% more physical cores, and a 364.3% more advanced lithography process.
The Atom x5-Z8550 is our recommended choice as it beats the Core 2 Duo E6540 in performance tests.
Be aware that Atom x5-Z8550 is a notebook processor while Core 2 Duo E6540 is a desktop one.
Should you still have questions on choice between Atom x5-Z8550 and Core 2 Duo E6540, ask them in Comments section, and we shall answer.
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