Intel Xeon E5-4640 vs Intel Xeon E5-2650: comparison
Comparison of Intel Xeon E5-4640 and Intel Xeon E5-2650: key differences and a full specification table.
Key differences
Intel Xeon E5-4640 has a higher base clock (2.4 GHz vs 2 GHz).
Both processors match on: core count (8), thread count (16), maximum clock (2.8 GHz), L3 cache (20 MB), TDP (95 W), process node (32 nm), maximum memory size (384 GB), memory channels (4), 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 E5-4640 | Intel Xeon E5-2650 |
|---|---|---|
| Cores / threads | 8 / 16 | 8 / 16 |
| Max boost clock | 2.8 GHz | 2.8 GHz |
| L3 cache | 20 MB | 20 MB |
| TDP | 95 W | 95 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 E5-4640 | Intel Xeon E5-2650 |
|---|---|---|
| General | ||
| Model | E5-4640 | E5-2650 |
| Codename | Sandy Bridge EP | Sandy Bridge EP |
| Segment | Server | Server |
| Product line | Семейство процессоров Intel Xeon E5 | Семейство процессоров Intel Xeon E5 |
| Process | 32 nm | 32 nm |
| Launch date | Q2 2012 | Q1 2012 |
| Status | Discontinued | Discontinued |
| Expected discontinuance | Q2 2015 | Q2 2015 |
| Servicing status | End of Servicing Lifetime | End of Servicing Lifetime |
| End of servicing updates | 06/30/2020 | 06/30/2020 |
| Embedded options available | No | No |
| CPU | ||
| Cores | 8 | 8 |
| Threads | 16 | 16 |
| Multithreading (SMT/HT) | Yes | Yes |
| Base clock | 2.4 GHz | 2 GHz |
| Max boost clock | 2.8 GHz | 2.8 GHz |
| Turbo Boost 2.0 frequency | 2.8 GHz | 2.8 GHz |
| L3 cache | 20 MB | 20 MB |
| Bus speed | 8 GT/s | 8 GT/s |
| TDP | 95 W | 95 W |
| Turbo Boost | Yes (2) | Yes (2) |
| 64-bit support | Yes | Yes |
| Instruction set width | 64 bit | 64 bit |
| Instruction set extensions | AVX | AVX |
| QPI links | 2 | 2 |
| Memory | ||
| Max memory size | 384 GB | 384 GB |
| Memory types | DDR3 | DDR3 |
| Memory channels | 4 | 4 |
| Max memory bandwidth | 51.2 GB/s | 51.2 GB/s |
| ECC memory supported | Yes | Yes |
| I/O and interfaces | ||
| PCI Express revision | 3 | 3 |
| PCI Express lanes | 40 | 40 |
| Scalability | 4S Only | 2S Only |
| Package and thermal | ||
| Sockets supported | FCLGA2011 | FCLGA2011 |
| Max CPU configuration | 4 | 2 |
| Package size | 52.5mm x 45.0mm | 52.5mm x 45.0mm |
| TCASE | — | 77.4 °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 | Yes |
| Execute Disable Bit | Yes | Yes |
| Intel Trusted Execution Technology | Yes | Yes |
| vPro Eligibility | — | Intel vPro Platform |
| Technologies | ||
| Enhanced SpeedStep | Yes | Yes |
| Idle States | Yes | Yes |
| Thermal Monitoring Technologies | Yes | Yes |
| Identity Protection Technology | — | No |
| Flex Memory Access | Yes | No |