| On-board graphics card | N |
| Intel Demand Based Switching | Y |
| System bus rate | 8 GT/s |
| CPU multiplier (bus/core ratio) | 35 |
| Memory clock speeds supported by processor | 800,1066,1333,1600 MHz |
| Tcase | 73 °C |
| Processor front side bus | 1600 MHz |
| Processor base frequency | 3.3 GHz |
| Intel® vPro™ Platform Eligibility | Y |
| Intel® Virtualization Technology (Intel® VT) | VT-d, VT-x |
| Market segment | Server |
| VID Voltage Range | 0.6 - 1.35 V |
| Component for | Server/workstation |
| ECC | Y |
| Memory channels | Quad-channel |
| Processor model | E5-2643 |
| Scalability | S2S |
| Processor family | Intel® Xeon® E5 Family |
| Processor boost frequency | 3.5 GHz |
| Processor cores | 4 |
| Processor threads | 8 |
| Processor cache | 10 MB |
| Bus type | QPI |
| PCI Express slots version | 3.0 |
| Processor cache type | L3 |
| Processor lithography | 32 nm |
| Processor operating modes | 64-bit |
| Processor socket | LGA 2011 (Socket R) |
| Thermal Design Power (TDP) | 130 W |
| Maximum internal memory supported by processor | 750 GB |
| Memory bandwidth supported by processor (max) | 51.2 GB/s |
| Intel® Turbo Boost Technology | Y |
| Embedded options available | N |
| Enhanced Intel SpeedStep Technology | Y |
| Execute Disable Bit | Y |
| Idle States | Y |
| Intel Flex Memory Access | Y |
| Intel Trusted Execution Technology | Y |
| Intel Virtualization Technology (VT-x) | Y |
| Intel VT-x with Extended Page Tables (EPT) | Y |
| Intel® AES New Instructions (Intel® AES-NI) | Y |
| Maximum number of PCI Express lanes | 40 |
| Number of QPI links | 2 |
| Thermal Monitoring Technologies | Y |
| Memory types supported by processor | DDR3-SDRAM |