Intel Xeon X3480 vs Intel Xeon E5645: comparison
Comparison of Intel Xeon X3480 and Intel Xeon E5645: key differences and a full specification table.
Key differences
Intel Xeon X3480 has a higher base clock (3.06 GHz vs 2.4 GHz) and a higher maximum clock (3.73 GHz vs 2.67 GHz).
At the same time, Intel Xeon E5645 has more cores (6 vs 4), more threads (12 vs 8), a larger L3 cache (12 MB vs 8 MB) and a lower TDP (80 W vs 95 W).
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 Xeon X3480 | Intel Xeon E5645 |
|---|---|---|
| Cores / threads | 4 / 8 | 6 / 12 |
| Max boost clock | 3.73 GHz | 2.67 GHz |
| L3 cache | 8 MB | 12 MB |
| TDP | 95 W | 80 W |
| Process | 45 nm | 32 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 Xeon X3480 | Intel Xeon E5645 |
|---|---|---|
| General | ||
| Model | X3480 | E5645 |
| Codename | Lynnfield | Westmere EP |
| Segment | Server | Server |
| Product line | Устаревшие процессоры Intel Xeon | Устаревшие процессоры Intel Xeon |
| Process | 45 nm | 32 nm |
| Launch date | Q2 2010 | Q1 2010 |
| Status | Discontinued | Discontinued |
| Expected discontinuance | Q4 2012 | — |
| Servicing status | End of Servicing Lifetime | End of Servicing Lifetime |
| Embedded options available | No | Yes |
| Use conditions | — | Communications |
| CPU | ||
| Cores | 4 | 6 |
| Threads | 8 | 12 |
| Multithreading (SMT/HT) | Yes | Yes |
| Base clock | 3.06 GHz | 2.4 GHz |
| Max boost clock | 3.73 GHz | 2.67 GHz |
| L3 cache | 8 MB | 12 MB |
| Bus speed | 2.5 GT/s | 5.86 GT/s |
| TDP | 95 W | 80 W |
| Turbo Boost | Yes (1) | Yes (1) |
| 64-bit support | Yes | Yes |
| Instruction set width | 64 bit | 64 bit |
| Instruction set extensions | SSE4.2 | SSE4.2 |
| QPI links | — | 2 |
| Memory | ||
| Max memory size | 32 GB | 288 GB |
| Memory types | DDR3 | DDR3 |
| Memory channels | 2 | 3 |
| Max memory bandwidth | 21 GB/s | 32 GB/s |
| ECC memory supported | Yes | Yes |
| Physical address extensions | 36-bit | 40-bit |
| I/O and interfaces | ||
| PCI Express revision | 2 | — |
| PCI Express lanes | 16 | — |
| PCI Express configurations | 1x16, 2x8, 4x4 | — |
| Package and thermal | ||
| Sockets supported | LGA1156 | FCLGA1366 |
| Max CPU configuration | 1 | 2 |
| Package size | 37.5mm x 37.5mm | 42.5mm X 45mm |
| TCASE | 72.7 °C | 76.2 °C |
| Die size | 296 mm² | — |
| Transistors (millions) | 774 million | — |
| 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 | No | Yes |
| Execute Disable Bit | Yes | Yes |
| Intel Trusted Execution Technology | Yes | Yes |
| Technologies | ||
| Enhanced SpeedStep | Yes | Yes |
| Idle States | Yes | Yes |
| Thermal Monitoring Technologies | No | No |