What is unlocked processor

Intel Xeon D-1531 vs AMD EPYC 7551P


Architecture code nameBroadwellZenStart dateQ4'15June 2017Place in the performance evaluation568638Processor NumberD-1531seriesIntel® Xeon® D ProcessorAMD EPYC 7000 SeriesstatusLaunchedVertical segmentserverserverFamilyAMD EPYC


64-bit supportBase frequency2.20 GHz2 GHzManufacturing process technology14 nm14 nmMaximum frequency2.70 GHz3 GHzNumber of wires632Number of threads1264Die size192 mmL1 cache96 KB (per core)L2 cache512 KB (per core)L3 cache64 MBNumber of transistors4800 millionApproved


Maximum memory channels28Maximum memory size128 GBSupported memory frequency2133 MHz2666 MHzSupported storage typesDDR4, DDR3DDR4Maximum memory bandwidth341 GB / s


Low Halogen Options AvailableMaximum number of CPUs in a configuration11Package size37.5mm x 37.5mmSupported SocketsFCBGA1667TR4Thermal design performance (TDP)45 watts180 wattsSocket count1P


Integrated LANMaximum number of PCIe links32Number of USB ports8PCI Express revision2.0/3.0x128PCIe configurationsx4 x8 x16Scalability1S OnlyTotal number of SATA ports6UARTUSB revision2.0/3.0

Security & Reliability

Execute Disable Bit (EDB)Intel® OS GuardIntel® Secure Key TechnologyIntel® Trusted Execution Technology (TXT)

Advanced technologies

Enhanced Intel SpeedStep® technologyGeneral-Purpose Input / Output (GPIO)Idle statesInstruction set extensionsIntel® AVX2Intel 64Intel® AES New InstructionsIntel® Hyper-Threading TechnologyIntel® TSX-NIIntel® Turbo Boost TechnologyThermal monitoring


Intel® Virtualization Technology (VT-x)Intel® Virtualization Technology for Directed I / O (VT-d)Intel® VT-x with Extended Page Tables (EPT)AMD Virtualization (AMD-V ™)