Intel Xeon E5-2643 vs Intel Itanium 9520: comparison
Comparison of Intel Xeon E5-2643 and Intel Itanium 9520: key differences and a full specification table.
Key differences
Intel Xeon E5-2643 has a higher base clock (3.3 GHz vs 1.73 GHz).
Both processors match on: core count (4), thread count (8), TDP (130 W), process node (32 nm).
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 E5-2643 | Intel Itanium 9520 |
|---|---|---|
| Cores / threads | 4 / 8 | 4 / 8 |
| Max boost clock | 3.5 GHz | — |
| L3 cache | 10 MB | — |
| TDP | 130 W | 130 W |
| Process | 32 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 E5-2643 | Intel Itanium 9520 |
|---|---|---|
| General | ||
| Model | E5-2643 | 9520 |
| Codename | Sandy Bridge EP | Poulson |
| Segment | Server | Server |
| Product line | Семейство процессоров Intel Xeon E5 | Процессор Intel Itanium серии 9500 |
| Process | 32 nm | 32 nm |
| Launch date | Q1 2012 | Q4 2012 |
| Status | Discontinued | Discontinued |
| Expected discontinuance | Q2 2015 | — |
| Servicing status | End of Servicing Lifetime | End of Servicing Updates |
| End of servicing updates | 06/30/2020 | — |
| Embedded options available | No | No |
| CPU | ||
| Cores | 4 | 4 |
| Threads | 8 | 8 |
| Multithreading (SMT/HT) | Yes | Yes |
| Base clock | 3.3 GHz | 1.73 GHz |
| Max boost clock | 3.5 GHz | — |
| Turbo Boost 2.0 frequency | 3.5 GHz | — |
| L3 cache | 10 MB | — |
| Cache (level unspecified) | — | 20 MB |
| Bus speed | 8 GT/s | 6.4 GT/s |
| TDP | 130 W | 130 W |
| Turbo Boost | Yes (2) | Yes (2) |
| 64-bit support | Yes | — |
| Instruction set width | 64 bit | — |
| Instruction set extensions | AVX | — |
| QPI links | 2 | — |
| Memory | ||
| Max memory size | 384 GB | — |
| Memory types | DDR3 | — |
| Memory channels | 4 | — |
| Max memory bandwidth | 51.2 GB/s | — |
| ECC memory supported | Yes | Yes |
| I/O and interfaces | ||
| PCI Express revision | 3 | — |
| PCI Express lanes | 40 | — |
| Scalability | 2S Only | — |
| Package and thermal | ||
| Sockets supported | FCLGA2011 | LGA1248 |
| Max CPU configuration | 2 | — |
| Package size | 52.5mm x 45.0mm | — |
| TJUNCTION | — | 95 °C |
| TCASE | 73 °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 | — |
| Execute Disable Bit | Yes | Yes |
| Intel Trusted Execution Technology | Yes | — |
| vPro Eligibility | Intel vPro Platform | — |
| Technologies | ||
| Enhanced SpeedStep | Yes | Yes |
| Idle States | Yes | — |
| Thermal Monitoring Technologies | Yes | — |
| Identity Protection Technology | No | — |
| Flex Memory Access | No | — |