Quark X1000 SoC processors run as fast as 400 MHz and are designed specifically for high performance low power applications. The Quark is backwards-compatible with previous Intel processors and software compatible with existing x86-based CPUs such as the Intel Atom and Intel Core line of processors. The Quark is 100% compatible with the Pentium instruction set and runs PC compatible software.
Performance is enhanced with 16 kBytes of shared instruction and L1 data cache; 512 kBytes of on chip SRAM is also available. The Intel Quark SoC has on-chip connectivity which includes a PCI Express interface, two 10/100-Ethernet ports, USB 2.0 Enhanced Host Controller Interface (EHCI), USB 2.0 Open Host Controller Interface (OHCI), I 2C, SPI, and a high speed UART with DMA. The Intel Quark supports a variety of external memory interfaces including microSD, SDIO, and eMMC. An on-chip DDR3 memory controller allows easy access and control of external DRAM memory.