Intel® Virtualization Technology for Directed I/O (VT-d) continues from the existing support for IA-32 (VT-x) and Itanium® processor (VT-i) virtualization adding new support for I/O-device virtualization. Intel VT-d can help end users improve security and reliability of the systems and also improve performance of I/O devices in virtualized environments.
Intel® VT-x with Extended Page Tables (EPT), also known as Second Level Address Translation (SLAT), provides acceleration for memory intensive virtualized applications. Extended Page Tables in Intel® Virtualization Technology platforms reduces the memory and power overhead costs and increases battery life through hardware optimization of page table management.
Intel® Turbo Boost Technology dynamically increases the processor's frequency as needed by taking advantage of thermal and power headroom to give you a burst of speed when you need it, and increased energy efficiency when you don’t.
Products specifications
| Attribute name | Attribute value |
|---|
| Processor model | 7255 |
| Processor boost frequency | 1.20 GHz |
| Processor cache | 34816 KB |
| Processor base frequency | 1.10 GHz |
| VID Voltage Range | 0.55 - 1.2 V |
| Maximum internal memory | 393216 MB |
| Tcase | DDR4-SDRAM, DDR3-SDRAM |
| Supported instruction sets | AVX-512 |
| Memory clock speeds supported by processor | 2400 MHz |
| Processor manufacturer | Intel |
| Processor cache type | L2 |
| Status | Launched |
| On-board graphics card | No |
| Intel Software Guard Extensions (Intel SGX) | No |
| Cooler included | No |
| Box | No |
| Market segment | Server |
| Intel® Memory Protection Extensions (Intel® MPX) | No |
| Product type | 1 |
| Memory channels | Hexa-channel |
| Component for | Server/workstation |
| ECC | Yes |
| Processor ARK ID | 128693 |
| Processor family | Intel® Xeon Phi™ |
| Processor cores | 68 |
| Processor codename | Knights Mill |
| Thermal Design Power (TDP) | 215 W |
| Memory bandwidth supported by processor (max) | 115.2 GB/s |
| Maximum internal memory supported by processor | 384 GB |
| PCI Express slots version | 3.0 |
| Processor lithography | 14 nm |
| Processor operating modes | 64-bit |
| Processor socket | LGA 3647 (Socket P) |
| PCI Express configurations | 1x16, 1x4, 1x8 |
| Conflict-Free processor | Yes |
| Maximum number of PCI Express lanes | 36 |
| Intel® Turbo Boost Technology | 2.0 |
| Memory types supported by processor | DDR4-SDRAM |
| Embedded options available | No |
| Execute Disable Bit | Yes |
| Idle States | Yes |
| Intel 64 | Yes |
| Intel Enhanced Halt State | Yes |
| Intel Trusted Execution Technology | No |
| Intel Virtualization Technology (VT-x) | Yes |
| Intel VT-x with Extended Page Tables (EPT) | Yes |
| Intel® AES New Instructions (Intel® AES-NI) | Yes |
| Thermal Monitoring Technologies | Yes |
