Intel Pentium G645 vs Intel Pentium G640: comparison
Comparison of Intel Pentium G645 and Intel Pentium G640: key differences and a full specification table.
Key differences
Intel Pentium G645 has a higher base clock (2.9 GHz vs 2.8 GHz).
Both processors match on: core count (2), thread count (2), L3 cache (3 MB), 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 Pentium G645 | Intel Pentium G640 |
|---|---|---|
| Cores / threads | 2 / 2 | 2 / 2 |
| L3 cache | 3 MB | 3 MB |
| TDP | 65 W | 65 W |
| Process | 32 nm | 32 nm |
| Integrated graphics | Графические решения Intel HD для процессоров Intel 2-го поколения | Графические решения Intel HD для процессоров Intel 2-го поколения |
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 G645 | Intel Pentium G640 |
|---|---|---|
| General | ||
| Model | G645 | G640 |
| Codename | Sandy Bridge | Sandy Bridge |
| Segment | Desktop | Desktop |
| Product line | Устаревший процессор Intel Pentium | Устаревший процессор Intel Pentium |
| Process | 32 nm | 32 nm |
| Launch date | Q3 2012 | Q2 2012 |
| Status | Discontinued | Discontinued |
| Expected discontinuance | Q3 2013 | Q3 2013 |
| 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 | 2 | 2 |
| Multithreading (SMT/HT) | No | No |
| Base clock | 2.9 GHz | 2.8 GHz |
| L3 cache | 3 MB | 3 MB |
| Bus speed | 5 GT/s | 5 GT/s |
| TDP | 65 W | 65 W |
| Turbo Boost | No | No |
| 64-bit support | Yes | Yes |
| Instruction set width | 64 bit | 64 bit |
| Instruction set extensions | SSE4.1, SSE4.2 | SSE4.1, SSE4.2 |
| Memory | ||
| Max memory size | 32 GB | 32 GB |
| Memory types | DDR3 | DDR3 |
| Memory channels | 2 | 2 |
| Max memory bandwidth | 17 GB/s | 17 GB/s |
| Graphics | ||
| Integrated graphics | Графические решения Intel HD для процессоров Intel 2-го поколения | Графические решения Intel HD для процессоров Intel 2-го поколения |
| 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 |
| Quick Sync Video | No | No |
| Clear Video HD | No | No |
| InTru 3D | No | No |
| Flexible Display Interface | Yes | Yes |
| I/O and interfaces | ||
| PCI Express revision | 2 | 2 |
| Package and thermal | ||
| Sockets supported | FCLGA1155 | 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 | 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 |
| Flex Memory Access | Yes | Yes |
| Fast Memory Access | Yes | Yes |
| Optane Memory Supported | No | No |