Intel Core i3-2125 vs Intel Core i5-2405S: comparison
Comparison of Intel Core i3-2125 and Intel Core i5-2405S: key differences and a full specification table.
Key differences
Intel Core i3-2125 has a higher base clock (3.3 GHz vs 2.5 GHz).
At the same time, Intel Core i5-2405S has more cores (4 vs 2) and a larger L3 cache (6 MB vs 3 MB).
Both processors match on: thread count (4), TDP (65 W), process node (32 nm), maximum memory size (32 GB), memory channels (2), PCIe version (2), maximum integrated graphics clock (1.1 GHz).
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 Core i3-2125 | Intel Core i5-2405S |
|---|---|---|
| Cores / threads | 2 / 4 | 4 / 4 |
| Max boost clock | — | 3.3 GHz |
| L3 cache | 3 MB | 6 MB |
| TDP | 65 W | 65 W |
| Process | 32 nm | 32 nm |
| Integrated graphics | Intel HD Graphics 3000 | Intel HD Graphics 3000 |
Full specification table
Differing values are highlighted. This is not a better/worse rating: numbers from different architectures are not always comparable.
| Parameter | Intel Core i3-2125 | Intel Core i5-2405S |
|---|---|---|
| General | ||
| Model | i3-2125 | i5-2405S |
| Codename | Sandy Bridge | Sandy Bridge |
| Segment | Desktop | Desktop |
| Product line | Legacy Intel Core Processors | Legacy Intel Core Processors |
| Process | 32 nm | 32 nm |
| Launch date | Q3 2011 | Q2 2011 |
| Status | Discontinued | Discontinued |
| Expected discontinuance | Q3 2013 | Q1 2013 |
| Servicing status | End of Servicing Lifetime | End of Servicing Lifetime |
| End of servicing updates | 12/31/2019 | 12/31/2019 |
| Embedded options available | No | No |
| CPU | ||
| Cores | 2 | 4 |
| Threads | 4 | 4 |
| Multithreading (SMT/HT) | Yes | No |
| Base clock | 3.3 GHz | 2.5 GHz |
| Max boost clock | — | 3.3 GHz |
| Turbo Boost 2.0 frequency | — | 3.3 GHz |
| L3 cache | 3 MB | 6 MB |
| Bus speed | 5 GT/s | 5 GT/s |
| TDP | 65 W | 65 W |
| Turbo Boost | No | Yes (2) |
| 64-bit support | Yes | Yes |
| Instruction set width | 64 bit | 64 bit |
| Instruction set extensions | SSE4.1, SSE4.2, AVX | SSE4.1, SSE4.2, AVX |
| Memory | ||
| Max memory size | 32 GB | 32 GB |
| Memory types | DDR3 | DDR3 |
| Memory channels | 2 | 2 |
| Max memory bandwidth | 21 GB/s | 21 GB/s |
| ECC memory supported | — | No |
| Graphics | ||
| Integrated graphics | Intel HD Graphics 3000 | Intel HD Graphics 3000 |
| Has integrated graphics | Yes | Yes |
| Graphics base frequency | 850 MHz | 850 MHz |
| Graphics max frequency | 1.1 GHz | 1.1 GHz |
| Max displays | 2 | 2 |
| Graphics device ID | 0x112 | 0x112 |
| Quick Sync Video | Yes | Yes |
| InTru 3D | Yes | Yes |
| Flexible Display Interface | Yes | Yes |
| I/O and interfaces | ||
| PCI Express revision | 2 | 2 |
| PCI Express lanes | 16 | 16 |
| Package and thermal | ||
| Sockets supported | FCLGA1155 | LGA1155, FCLGA1155 |
| Max CPU configuration | 1 | 1 |
| Package size | 37.5mm x 37.5mm | 37.5mm x 37.5mm |
| TCASE | 69.1 °C | 69.1 °C |
| Security and virtualization | ||
| Virtualization (VT-x / AMD-V) | Yes | Yes |
| Virtualization for Directed I/O (VT-d) | No | No |
| Extended Page Tables (EPT) | Yes | Yes |
| AES-NI | No | Yes |
| Execute Disable Bit | Yes | Yes |
| Technologies | ||
| Enhanced SpeedStep | Yes | Yes |
| Idle States | Yes | Yes |
| Thermal Monitoring Technologies | Yes | Yes |
| Identity Protection Technology | Yes | Yes |
| Flex Memory Access | Yes | Yes |
| Fast Memory Access | Yes | Yes |