Xeon E5-2637 vs Atom E665CT
Primary details
Comparing Atom E665CT and Xeon E5-2637 processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | not rated | 1976 |
| Place by popularity | not in top-100 | not in top-100 |
| Market segment | Laptop | Server |
| Power efficiency | no data | 2.21 |
| Architecture codename | Stellarton (2010) | Sandy Bridge-EP (2012) |
| Release date | 22 November 2010 (14 years ago) | 6 March 2012 (12 years ago) |
Detailed specifications
Atom E665CT and Xeon E5-2637 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 | 1 (Single-Core) | 2 (Dual-core) |
| Threads | 2 | 4 |
| Base clock speed | no data | 3 GHz |
| Boost clock speed | 1.3 GHz | 3.5 GHz |
| Bus rate | no data | 8 GT/s |
| L1 cache | 64 KB (per core) | 64 KB (per core) |
| L2 cache | 512 KB (per core) | 256 KB (per core) |
| L3 cache | 0 KB | 5120 KB (shared) |
| Chip lithography | 45 nm | 32 nm |
| Die size | 26 mm2 | 294 mm2 |
| Maximum core temperature | no data | 70 °C |
| Number of transistors | 47 million | 1,270 million |
| 64 bit support | - | + |
| Windows 11 compatibility | - | - |
Compatibility
Information on Atom E665CT and Xeon E5-2637 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 | 2 |
| Socket | Intel BGA1466 | FCLGA2011 |
| Power consumption (TDP) | 7 Watt | 80 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Atom E665CT and Xeon E5-2637. You'll probably need this information if you require some particular technology.
| Instruction set extensions | no data | Intel® AVX |
| AES-NI | - | + |
| AVX | - | + |
| Enhanced SpeedStep (EIST) | + | + |
| Turbo Boost Technology | no data | 2.0 |
| Hyper-Threading Technology | + | + |
| Idle States | no data | + |
| Thermal Monitoring | - | + |
| Flex Memory Access | no data | - |
| Demand Based Switching | no data | + |
Security technologies
Atom E665CT and Xeon E5-2637 technologies aimed at improving security, for example, by protecting against hacks.
| TXT | no data | + |
| EDB | no data | + |
Virtualization technologies
Virtual machine speed-up technologies supported by Atom E665CT and Xeon E5-2637 are enumerated here.
| VT-d | no data | + |
| VT-x | no data | + |
| EPT | no data | + |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Atom E665CT and Xeon E5-2637. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR2 | DDR3 |
| Maximum memory size | no data | 384 GB |
| Max memory channels | no data | 4 |
| Maximum memory bandwidth | no data | 51.2 GB/s |
| ECC memory support | - | + |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | Intel GMA 600 | no data |
Peripherals
Specifications and connection of peripherals supported by Atom E665CT and Xeon E5-2637.
| PCIe version | no data | 3.0 |
| PCI Express lanes | no data | 40 |
Pros & cons summary
| Recency | 22 November 2010 | 6 March 2012 |
| Physical cores | 1 | 2 |
| Threads | 2 | 4 |
| Chip lithography | 45 nm | 32 nm |
| Power consumption (TDP) | 7 Watt | 80 Watt |
Atom E665CT has 1042.9% lower power consumption.
Xeon E5-2637, on the other hand, has an age advantage of 1 year, 100% more physical cores and 100% more threads, and a 40.6% more advanced lithography process.
We couldn't decide between Atom E665CT and Xeon E5-2637. We've got no test results to judge.
Be aware that Atom E665CT is a notebook processor while Xeon E5-2637 is a server/workstation one.
Should you still have questions on choice between Atom E665CT and Xeon E5-2637, ask them in Comments section, and we shall answer.
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