Intel Atom серии Z550 vs Intel Atom серии Z540: comparison
Comparison of Intel Atom серии Z550 and Intel Atom серии Z540: key differences and a full specification table.
Key differences
Intel Atom серии Z550 has a higher base clock (2 GHz vs 1.86 GHz).
Both processors match on: core count (1), thread count (2), TDP (2.4 W), process node (45 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 Atom серии Z550 | Intel Atom серии Z540 |
|---|---|---|
| Cores / threads | 1 / 2 | 1 / 2 |
| TDP | 2.4 W | 2.4 W |
| Process | 45 nm | 45 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 Atom серии Z550 | Intel Atom серии Z540 |
|---|---|---|
| General | ||
| Model | Z550 | Z540 |
| Codename | Silverthorne | Silverthorne |
| Segment | Mobile | Mobile |
| Product line | Устаревшие процессоры Intel Atom | Устаревшие процессоры Intel Atom |
| Process | 45 nm | 45 nm |
| Launch date | Q2 2009 | Q2 2008 |
| Status | Discontinued | Discontinued |
| Servicing status | End of Servicing Updates | End of Servicing Updates |
| Embedded options available | No | No |
| CPU | ||
| Cores | 1 | 1 |
| Threads | 2 | 2 |
| Multithreading (SMT/HT) | Yes | Yes |
| Base clock | 2 GHz | 1.86 GHz |
| L2 cache | 512 KB | 512 KB |
| Bus speed | 533 MHz | 533 MHz |
| TDP | 2.4 W | 2.4 W |
| Scenario design power | — | 0.96 W |
| Turbo Boost | No | No |
| 64-bit support | No | No |
| Instruction set width | 32 bit | 32 bit |
| Instruction set extensions | — | SSE2, SSE3, SSSE3 |
| VID voltage range | — | 0.75 -1.1V |
| FSB parity | No | No |
| Package and thermal | ||
| Sockets supported | PBGA441 | PBGA441 |
| Package size | 13mm x 14mm | 13mm x 14mm |
| TJUNCTION | 90 °C | 90 °C |
| Die size | 26 mm² | 26 mm² |
| Transistors (millions) | 47 million | 47 million |
| Security and virtualization | ||
| Virtualization (VT-x / AMD-V) | Yes | Yes |
| Virtualization for Directed I/O (VT-d) | No | No |
| Execute Disable Bit | Yes | Yes |
| Intel Trusted Execution Technology | No | No |
| Technologies | ||
| Enhanced SpeedStep | Yes | Yes |
| Idle States | Yes | Yes |
| Thermal Monitoring Technologies | Yes | Yes |