Xilinx® 7 series FPGAs comprise four FPGA families that address the complete range of system requirements, ranging from low cost, small form factor, cost-sensitive,
high-volume applications to ultra high-end connectivity bandwidth, logic capacity, and signal processing capability for the most demanding high-performance applications.
The 7 series FPGAs include:

• Spartan®-7 Family: Optimized for low cost, lowest power, and high I/O performance. Available in low-cost, very small form-factor packaging for smallest PCB footprint.
• Artix®-7 Family: Optimized for low power applications requiring serial transceivers and high DSP and logic throughput. Provides the lowest total bill of materials cost for
high-throughput, cost-sensitive applications.
• Kintex®-7 Family: Optimized for best price-performance with a 2X improvement compared to previous generation, enabling a new class of FPGAs.
• Virtex®-7 Family: Optimized for highest system performance and capacity with a 2X improvement in system performance. Highest capability devices enabled by stacked
silicon interconnect (SSI) technology.

1. Each 7 series FPGA slice contains four LUTs and eight flip-flops; only some slices can use their LUTs as distributed RAM or SRLs.
2. Each DSP slice contains a pre-adder, a 25 x 18 multiplier, an adder, and an accumulator.
3. Block RAMs are fundamentally 36 Kb in size; each block can also be used as two independent 18 Kb blocks.
4. Each CMT contains one MMCM and one PLL.
5. Virtex-7 T FPGA Interface Blocks for PCI Express support up to x8 Gen 2. Virtex-7 XT and Virtex-7 HT Interface Blocks for PCI Express support up to x8 Gen 3,
with the exception of the XC7VX485T device, which supports x8 Gen 2.
6. Does not include configuration Bank 0.
7. This number does not include GTX, GTH, or GTZ transceivers.
8. Super logic regions (SLRs) are the constituent parts of FPGAs that use SSI technology. Virtex-7 HT devices use SSI technology to connect SLRs with 28.05 Gb/s transceivers