Intel Xeon E3-1271 v3 vs Intel Xeon E3-1276 v3: comparison
Comparison of Intel Xeon E3-1271 v3 and Intel Xeon E3-1276 v3: key differences and a full specification table.
Key differences
Intel Xeon E3-1271 v3 has a lower TDP (80 W vs 84 W).
Both processors match on: core count (4), thread count (8), base clock (3.6 GHz), maximum clock (4 GHz), 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 E3-1276 v3 |
|---|---|---|
| Cores / threads | 4 / 8 | 4 / 8 |
| Max boost clock | 4 GHz | 4 GHz |
| L3 cache | 8 MB | 8 MB |
| TDP | 80 W | 84 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 E3-1276 v3 |
|---|---|---|
| General | ||
| Model | E3-1271V3 | E3-1276V3 |
| 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 | 3.6 GHz |
| Max boost clock | 4 GHz | 4 GHz |
| Turbo Boost 2.0 frequency | 4 GHz | 4 GHz |
| L3 cache | 8 MB | 8 MB |
| Bus speed | 5 GT/s | 5 GT/s |
| TDP | 80 W | 84 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 |
| Graphics | ||
| Graphics base frequency | — | 350 MHz |
| Graphics max frequency | — | 1.25 GHz |
| Graphics units | — | 20 |
| Graphics video max memory | — | 1.7 GB |
| Max displays | — | 3 |
| Max resolution (DP) | — | 3840x2160@60Hz |
| Max resolution (HDMI) | — | 3840x2160@60Hz |
| DirectX | — | 11.2 |
| OpenGL | — | 4.3 |
| Quick Sync Video | — | Yes |
| Clear Video HD | — | Yes |
| Graphics output | — | eDP/DP/HDMI/VGA |
| InTru 3D | — | Yes |
| Flexible Display Interface | — | Yes |
| Max resolution (VGA) | — | 2880x1800@60Hz |
| 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 |