Atom C3808 vs i7-2840QM
Primary details
Comparing Core i7-2840QM and Atom C3808 processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | 1780 | not rated |
| Place by popularity | not in top-100 | not in top-100 |
| Market segment | Laptop | Server |
| Series | Intel Core i7 | Intel Atom |
| Power efficiency | 5.09 | no data |
| Architecture codename | Sandy Bridge (2011−2013) | Goldmont (2016−2017) |
| Release date | 4 September 2011 (13 years ago) | 15 August 2017 (7 years ago) |
| Launch price (MSRP) | no data | $369 |
Detailed specifications
Core i7-2840QM and Atom C3808 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) | 12 (Dodeca-Core) |
| Threads | 8 | 12 |
| Base clock speed | no data | 2 GHz |
| Boost clock speed | 2.4 GHz | 2 GHz |
| Bus type | DMI 2.0 | no data |
| Bus rate | 4 × 5 GT/s | no data |
| Multiplier | 24 | 22 |
| L1 cache | 256 KB | 672 KB |
| L2 cache | 1 MB | 12 MB |
| L3 cache | 8 MB | 12 MB |
| Chip lithography | 32 nm | 14 nm |
| Die size | 216 mm2 | no data |
| Maximum core temperature | no data | 86 °C |
| Number of transistors | 1160 Million | no data |
| 64 bit support | + | + |
| Windows 11 compatibility | - | - |
Compatibility
Information on Core i7-2840QM and Atom C3808 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) | 1 (Uniprocessor) |
| Socket | Socket G2 | FCBGA1310 |
| Power consumption (TDP) | 45 Watt | 25 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Core i7-2840QM and Atom C3808. You'll probably need this information if you require some particular technology.
| AES-NI | + | + |
| FMA | + | - |
| AVX | + | - |
| vPro | + | no data |
| Enhanced SpeedStep (EIST) | + | + |
| QuickAssist | no data | + |
| Turbo Boost Technology | no data | - |
| Hyper-Threading Technology | no data | - |
Security technologies
Core i7-2840QM and Atom C3808 technologies aimed at improving security, for example, by protecting against hacks.
| TXT | + | no data |
| EDB | no data | + |
| Secure Boot | no data | + |
| Secure Key | no data | + |
| SGX | no data | - |
| OS Guard | no data | + |
Virtualization technologies
Virtual machine speed-up technologies supported by Core i7-2840QM and Atom C3808 are enumerated here.
| VT-d | + | + |
| VT-x | + | + |
| EPT | no data | + |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Core i7-2840QM and Atom C3808. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | no data | DDR4: 2133 |
| Maximum memory size | 32 GB | 256 GB |
| Max memory channels | no data | 2 |
| Maximum memory bandwidth | 25.598 GB/s | 34.134 GB/s |
| ECC memory support | - | + |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | Intel HD Graphics 3000 | no data |
Peripherals
Specifications and connection of peripherals supported by Core i7-2840QM and Atom C3808.
| PCIe version | no data | 3 |
| PCI Express lanes | no data | 16 |
| USB revision | no data | 3 |
| Total number of SATA ports | no data | 16 |
| Max number of SATA 6 Gb/s Ports | no data | 16 |
| Number of USB ports | no data | 8 |
| Integrated LAN | no data | 4x10/2.5/1 GBE |
Pros & cons summary
| Recency | 4 September 2011 | 15 August 2017 |
| Physical cores | 4 | 12 |
| Threads | 8 | 12 |
| Chip lithography | 32 nm | 14 nm |
| Power consumption (TDP) | 45 Watt | 25 Watt |
Atom C3808 has an age advantage of 5 years, 200% more physical cores and 50% more threads, a 128.6% more advanced lithography process, and 80% lower power consumption.
We couldn't decide between Core i7-2840QM and Atom C3808. We've got no test results to judge.
Be aware that Core i7-2840QM is a notebook processor while Atom C3808 is a server/workstation one.
Should you still have questions on choice between Core i7-2840QM and Atom C3808, ask them in Comments section, and we shall answer.
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