Intel Atom серии C3538 vs Intel Atom серии C2550: comparison
Comparison of Intel Atom серии C3538 and Intel Atom серии C2550: key differences and a full specification table.
Key differences
Intel Atom серии C3538 has a finer process node (14 nm vs 22 nm), a higher maximum memory size (256 GB vs 64 GB) and a newer PCIe version (3 vs 2).
At the same time, Intel Atom серии C2550 has a higher base clock (2.4 GHz vs 2.1 GHz), a higher maximum clock (2.6 GHz vs 2.1 GHz) and a lower TDP (14 W vs 15 W).
Both processors match on: core count (4), thread count (4), memory channels (2).
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 C3538 | Intel Atom серии C2550 |
|---|---|---|
| Cores / threads | 4 / 4 | 4 / 4 |
| Max boost clock | 2.1 GHz | 2.6 GHz |
| TDP | 15 W | 14 W |
| Process | 14 nm | 22 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 C3538 | Intel Atom серии C2550 |
|---|---|---|
| General | ||
| Model | C3538 | C2550 |
| Codename | Denverton | Avoton |
| Segment | Server | Server |
| Product line | Процессоры Intel Atom серии C | Процессоры Intel Atom серии C |
| Process | 14 nm | 22 nm |
| Launch date | Q3 2017 | Q3 2013 |
| Status | Launched | Launched |
| Servicing status | — | End of Servicing Lifetime |
| End of servicing updates | — | 06/30/2021 |
| Embedded options available | Yes | No |
| CPU | ||
| Cores | 4 | 4 |
| Threads | 4 | 4 |
| Multithreading (SMT/HT) | No | No |
| Base clock | 2.1 GHz | 2.4 GHz |
| Max boost clock | 2.1 GHz | 2.6 GHz |
| Turbo Boost 2.0 frequency | — | 2.6 GHz |
| Cache (level unspecified) | 8 MB | 2 MB |
| TDP | 15 W | 14 W |
| Turbo Boost | No | Yes (2) |
| Instruction set width | 64 bit | 64 bit |
| QPI links | 0 | — |
| UPI links | 0 | — |
| Memory | ||
| Max memory size | 256 GB | 64 GB |
| Memory types | DDR4 | DDR3, DDR3L |
| Memory channels | 2 | 2 |
| Max memory bandwidth | — | 25.6 GB/s |
| ECC memory supported | Yes | Yes |
| Physical address extensions | — | 36-bit |
| I/O and interfaces | ||
| PCI Express revision | 3 | 2 |
| PCI Express lanes | 12 | 16 |
| PCI Express configurations | x2,x4,x8 | x1,x2,x4,x8,x16 |
| USB revision | 3 | 2 |
| USB ports | 8 | 4 |
| SATA ports | 12 | 6 |
| SATA 6 Gb/s ports | 12 | 2 |
| Integrated LAN | 2x10/2.5/1GbE + 2x2.5/1GbE | 4x1 or 4x2.5 GbE |
| UART | — | 2 |
| Package and thermal | ||
| Sockets supported | FCBGA1310 | FCBGA1283 |
| Max CPU configuration | 1 | — |
| Package size | 34 mm x 28 mm | 34 mm x 28 mm |
| TCASE | 87 °C | 96 °C |
| Min operating temperature | 0 °C | — |
| Security and virtualization | ||
| Virtualization (VT-x / AMD-V) | Yes | Yes |
| Virtualization for Directed I/O (VT-d) | Yes | — |
| Extended Page Tables (EPT) | Yes | Yes |
| AES-NI | Yes | Yes |
| Execute Disable Bit | Yes | — |
| Secure Key | Yes | — |
| Intel OS Guard | Yes | — |
| Intel Boot Guard | No | — |
| Intel Software Guard Extensions | No | — |