Atom E645C vs Core i5-2515E
Primary details
Comparing Core i5-2515E and Atom E645C processor market type (desktop or notebook), architecture, sales start time and price.
| Place in performance ranking | 2220 | not rated |
| Place by popularity | not in top-100 | not in top-100 |
| Market segment | Laptop | Laptop |
| Series | Intel Core i5 | no data |
| Architecture codename | Sandy Bridge (2011−2013) | Stellarton (2010) |
| Release date | 1 February 2011 (13 years ago) | 22 November 2010 (13 years ago) |
| Launch price (MSRP) | $266 | no data |
Detailed specifications
Core i5-2515E and Atom E645C 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) | 1 (Single-Core) |
| Threads | 4 | 2 |
| Base clock speed | 2.5 GHz | no data |
| Boost clock speed | 2.5 GHz | 1 GHz |
| Bus support | 4 × 5 GT/s | no data |
| L1 cache | 64K (per core) | 64 KB (per core) |
| L2 cache | 256K (per core) | 512 KB (per core) |
| L3 cache | 3 MB (shared) | 0 KB |
| Chip lithography | 32 nm | 45 nm |
| Die size | 149 mm2 | 26 mm2 |
| Number of transistors | 624 million | 47 million |
| 64 bit support | + | - |
| Windows 11 compatibility | - | - |
| Unlocked multiplier | No | No |
Compatibility
Information on Core i5-2515E and Atom E645C 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 |
| Socket | Intel BGA1023 | Intel BGA1466 |
| Power consumption (TDP) | 35 Watt | 4 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Core i5-2515E and Atom E645C. You'll probably need this information if you require some particular technology.
| AES-NI | + | no data |
| FMA | + | no data |
| AVX | + | no data |
| vPro | + | no data |
| Enhanced SpeedStep (EIST) | + | + |
| Hyper-Threading Technology | no data | + |
Security technologies
Core i5-2515E and Atom E645C technologies aimed at improving security, for example, by protecting against hacks.
| TXT | + | no data |
Virtualization technologies
Virtual machine speed-up technologies supported by Core i5-2515E and Atom E645C are enumerated here.
| VT-d | + | no data |
| VT-x | + | no data |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Core i5-2515E and Atom E645C. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR3 | DDR2 |
| Maximum memory size | 16 GB | no data |
| Max memory channels | 2 | no data |
| Maximum memory bandwidth | 21.335 GB/s | no data |
| ECC memory support | + | no data |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card Compare | Intel HD Graphics 3000 | Intel GMA 600 |
Pros & cons summary
| Integrated graphics card | 0.66 | |
| Recency | 1 February 2011 | 22 November 2010 |
| Physical cores | 2 | 1 |
| Threads | 4 | 2 |
| Chip lithography | 32 nm | 45 nm |
| Power consumption (TDP) | 35 Watt | 4 Watt |
We couldn't decide between Core i5-2515E and Atom E645C. We've got no test results to judge.
Should you still have questions on choice between Core i5-2515E and Atom E645C, ask them in Comments section, and we shall answer.
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