Intel Pentium 1405 vs Intel Atom серии S1240: comparison
Comparison of Intel Pentium 1405 and Intel Atom серии S1240: key differences and a full specification table.
Key differences
Intel Pentium 1405 has a higher maximum memory size (375 GB vs 8 GB), more memory channels (2 vs 1) and a newer PCIe version (3 vs 2).
At the same time, Intel Atom серии S1240 has more threads (4 vs 2), a higher base clock (1.6 GHz vs 1.2 GHz) and a lower TDP (6.1 W vs 40 W).
Both processors match on: core count (2), process node (32 nm).
These are specification values: they show differences between the models but do not determine a performance winner. For a specific workload, rely on independent benchmarks.
Key specifications
| Parameter | Intel Pentium 1405 | Intel Atom серии S1240 |
|---|---|---|
| Cores / threads | 2 / 2 | 2 / 4 |
| Max boost clock | 1.8 GHz | — |
| L3 cache | 5 MB | — |
| TDP | 40 W | 6.1 W |
| Process | 32 nm | 32 nm |
Full specification table
Differing values are highlighted. This is not a better/worse rating: numbers from different architectures are not always comparable.
| Parameter | Intel Pentium 1405 | Intel Atom серии S1240 |
|---|---|---|
| General | ||
| Model | 1405 | S1240 |
| Codename | Sandy Bridge EN | Centerton |
| Segment | Server | Server |
| Product line | Процессор Intel Pentium серии 1000 | Процессоры Intel Atom серии S |
| Process | 32 nm | 32 nm |
| Launch date | Q2 2012 | Q4 2012 |
| Status | Discontinued | Discontinued |
| Servicing status | End of Servicing Updates | — |
| End of servicing updates | 12/31/2019 | — |
| Embedded options available | Yes | No |
| CPU | ||
| Cores | 2 | 2 |
| Threads | 2 | 4 |
| Multithreading (SMT/HT) | No | Yes |
| Base clock | 1.2 GHz | 1.6 GHz |
| Max boost clock | 1.8 GHz | — |
| L3 cache | 5 MB | — |
| Cache (level unspecified) | — | 1 MB |
| Bus speed | 0 GT/s | — |
| TDP | 40 W | 6.1 W |
| Turbo Boost | No | — |
| 64-bit support | Yes | — |
| Instruction set width | 64 bit | 64 bit |
| Instruction set extensions | AVX | — |
| QPI links | 1 | — |
| Memory | ||
| Max memory size | 375 GB | 8 GB |
| Memory types | DDR3 | DDR3 |
| Memory channels | 2 | 1 |
| Max memory bandwidth | 25 GB/s | 10.6 GB/s |
| ECC memory supported | Yes | Yes |
| I/O and interfaces | ||
| PCI Express revision | 3 | 2 |
| PCI Express lanes | 24 | 8 |
| Scalability | 2S Only | — |
| UART | — | UART |
| PCI support | — | PCI Support |
| Package and thermal | ||
| Sockets supported | FCLGA1356 | FCBGA1283 |
| Max CPU configuration | 1 | — |
| Package size | 45mm x 42.5mm | — |
| Security and virtualization | ||
| Virtualization (VT-x / AMD-V) | Yes | Yes |
| Virtualization for Directed I/O (VT-d) | Yes | — |
| Extended Page Tables (EPT) | Yes | — |
| AES-NI | Yes | — |
| Execute Disable Bit | Yes | — |
| Intel Trusted Execution Technology | Yes | — |
| vPro Eligibility | Intel vPro Platform | — |
| Technologies | ||
| Enhanced SpeedStep | Yes | — |
| Idle States | Yes | — |
| Thermal Monitoring Technologies | Yes | — |
| Flex Memory Access | Yes | — |