Intel Quark is an embedded system-on-a-chip (SoC) processor design intended for smaller mobile devices like wearable computers. As with their counterparts in elementary particles, Quark is smaller than Atom. The Quark processor is said to be a fifth of the size of Atom and draw a tenth of the power. Quark's core is a 32-bit x86 design based on the original Pentium chip. Like the older Pentium, it lacks some of the enhanced instruction sets, like MMX and SSE. Quark is not a replacement for Atom, as it is not as powerful a processor. It is intended for competition with ARM's Cortex M RISK-based processors, which are already found in wearable computing like Google Glass and Recon Jet and many mobile phones. Specifications for the first version, Quark SoC x1000: (1) Built in security software support through McAfee. (2) 400mhz speed. (3) DDR3 support. (4) PCI Express (PCIe). (5) Ethernet. (6) Support for USB, UART, SPI, I2C and JTAG connections. (7) 32 nanometer photolithographic fabrication process