Intel Xeon E3-1271 v3 vs Intel Xeon E3-1281 v3: comparison
Comparison of Intel Xeon E3-1271 v3 and Intel Xeon E3-1281 v3: key differences and a full specification table.
Key differences
Intel Xeon E3-1271 v3 has a lower TDP (80 W vs 82 W).
At the same time, Intel Xeon E3-1281 v3 has a higher base clock (3.7 GHz vs 3.6 GHz) and a higher maximum clock (4.1 GHz vs 4 GHz).
Both processors match on: core count (4), thread count (8), L3 cache (8 MB), process node (22 nm), maximum memory size (32 GB), memory channels (2), PCIe version (3).
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 E3-1271 v3 | Intel Xeon E3-1281 v3 |
|---|---|---|
| Cores / threads | 4 / 8 | 4 / 8 |
| Max boost clock | 4 GHz | 4.1 GHz |
| L3 cache | 8 MB | 8 MB |
| TDP | 80 W | 82 W |
| Process | 22 nm | 22 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 E3-1271 v3 | Intel Xeon E3-1281 v3 |
|---|---|---|
| General | ||
| Model | E3-1271V3 | E3-1281V3 |
| Codename | Haswell | Haswell |
| Segment | Server | Server |
| Product line | Семейство процессоров Intel Xeon E3 v3 | Семейство процессоров Intel Xeon E3 v3 |
| Process | 22 nm | 22 nm |
| Launch date | Q2 2014 | Q2 2014 |
| Status | Discontinued | Discontinued |
| Servicing status | End of Servicing Lifetime | End of Servicing Lifetime |
| End of servicing updates | 06/30/2021 | 06/30/2021 |
| Embedded options available | No | No |
| CPU | ||
| Cores | 4 | 4 |
| Threads | 8 | 8 |
| Multithreading (SMT/HT) | Yes | Yes |
| Base clock | 3.6 GHz | 3.7 GHz |
| Max boost clock | 4 GHz | 4.1 GHz |
| Turbo Boost 2.0 frequency | 4 GHz | 4.1 GHz |
| L3 cache | 8 MB | 8 MB |
| Bus speed | 5 GT/s | 5 GT/s |
| TDP | 80 W | 82 W |
| Turbo Boost | Yes (2) | Yes (2) |
| 64-bit support | Yes | Yes |
| Instruction set width | 64 bit | 64 bit |
| Instruction set extensions | SSE4.1, SSE4.2, AVX2 | SSE4.1, SSE4.2, AVX2 |
| QPI links | 0 | 0 |
| Memory | ||
| Max memory size | 32 GB | 32 GB |
| Memory types | DDR3, DDR3L | DDR3, DDR3L |
| Memory channels | 2 | 2 |
| Max memory bandwidth | 25.6 GB/s | 25.6 GB/s |
| ECC memory supported | Yes | Yes |
| I/O and interfaces | ||
| PCI Express revision | 3 | 3 |
| PCI Express lanes | 16 | 16 |
| PCI Express configurations | 1x16, 2x8, 1x8/2x4 | 1x16, 2x8, 1x8/2x4 |
| Scalability | 1S Only | 1S Only |
| Package and thermal | ||
| Sockets supported | FCLGA1150 | FCLGA1150 |
| Max CPU configuration | 1 | 1 |
| Package size | 37.5mm x 37.5mm | 37.5mm x 37.5mm |
| Thermal solution specification | PCG 2013D | PCG 2013D |
| 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 |
| Intel Trusted Execution Technology | Yes | Yes |
| Secure Key | Yes | Yes |
| Intel OS Guard | Yes | Yes |
| Anti-Theft Technology | Yes | Yes |
| Stable IT Platform Program | 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 |
| Transactional Synchronization Extensions | Yes | Yes |
| Flex Memory Access | Yes | Yes |
| Fast Memory Access | Yes | Yes |