Intel Core i5-2557M vs Intel Core i7-2637M: comparison
Comparison of Intel Core i5-2557M and Intel Core i7-2637M: key differences and a full specification table.
Key differences
Intel Core i7-2637M has a higher maximum clock (2.8 GHz vs 2.7 GHz) and a larger L3 cache (4 MB vs 3 MB).
Both processors match on: core count (2), thread count (4), base clock (1.7 GHz), TDP (17 W), process node (32 nm), maximum memory size (8.01 GB), memory channels (2), PCIe version (2), maximum integrated graphics clock (1.2 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 i5-2557M | Intel Core i7-2637M |
|---|---|---|
| Cores / threads | 2 / 4 | 2 / 4 |
| Max boost clock | 2.7 GHz | 2.8 GHz |
| L3 cache | 3 MB | 4 MB |
| TDP | 17 W | 17 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 i5-2557M | Intel Core i7-2637M |
|---|---|---|
| General | ||
| Model | i5-2557M | i7-2637M |
| Codename | Sandy Bridge | Sandy Bridge |
| Segment | Mobile | Mobile |
| Product line | Legacy Intel Core Processors | Legacy Intel Core Processors |
| Process | 32 nm | 32 nm |
| Launch date | Q2 2011 | Q2 2011 |
| Status | Discontinued | Discontinued |
| Servicing status | End of Servicing Updates | End of Servicing Updates |
| End of servicing updates | 12/31/2019 | 12/31/2019 |
| Embedded options available | No | No |
| CPU | ||
| Cores | 2 | 2 |
| Threads | 4 | 4 |
| Multithreading (SMT/HT) | Yes | Yes |
| Base clock | 1.7 GHz | 1.7 GHz |
| Max boost clock | 2.7 GHz | 2.8 GHz |
| Turbo Boost 2.0 frequency | 2.7 GHz | 2.8 GHz |
| L3 cache | 3 MB | 4 MB |
| Bus speed | 5 GT/s | 5 GT/s |
| TDP | 17 W | 17 W |
| Turbo Boost | Yes (2) | Yes (2) |
| 64-bit support | Yes | Yes |
| Instruction set width | 64 bit | 64 bit |
| Instruction set extensions | AVX | AVX |
| Memory | ||
| Max memory size | 8.01 GB | 8.01 GB |
| Memory types | DDR3 | DDR3 |
| Memory channels | 2 | 2 |
| Max memory bandwidth | 21.3 GB/s | 21.3 GB/s |
| ECC memory supported | No | No |
| Graphics | ||
| Integrated graphics | Intel HD Graphics 3000 | Intel HD Graphics 3000 |
| Has integrated graphics | Yes | Yes |
| Graphics base frequency | 350 MHz | 350 MHz |
| Graphics max frequency | 1.2 GHz | 1.2 GHz |
| Max displays | 2 | 2 |
| Graphics device ID | 0x116 | 0x116 |
| Quick Sync Video | Yes | Yes |
| Graphics output | eDP/DP/HDMI/SDVO/CRT | eDP/DP/HDMI/SDVO/CRT |
| InTru 3D | Yes | Yes |
| Flexible Display Interface | Yes | Yes |
| Macrovision license required | No | No |
| I/O and interfaces | ||
| PCI Express revision | 2 | 2 |
| PCI Express lanes | 16 | 16 |
| PCI Express configurations | 1x16, 2x8, 1x8 2x4 | 1x16, 2x8, 1x8 2x4 |
| 4G WiMAX wireless | Yes | Yes |
| Package and thermal | ||
| Sockets supported | FCBGA1023 | FCBGA1023 |
| Max CPU configuration | 1 | 1 |
| Package size | 31.0mm x 24.0mm (BGA1023) | 31.0mm x 24.0mm (BGA1023) |
| TJUNCTION | 100 °C | 100 °C |
| Security and virtualization | ||
| Virtualization (VT-x / AMD-V) | Yes | Yes |
| Virtualization for Directed I/O (VT-d) | Yes | Yes |
| Extended Page Tables (EPT) | Yes | Yes |
| AES-NI | Yes | Yes |
| Execute Disable Bit | Yes | Yes |
| Anti-Theft Technology | Yes | Yes |
| vPro Eligibility | Intel vPro Platform | Intel vPro Platform |
| 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 |