The 
sinter FPGA core provides high-quality intra-frame noise reduction and are available for Xilinx Spartan-3 and Virtex devices.
sinter does not require external frame memory
It is typically integrated together with temper into a single netlist or bitstream, providing a complete Noise Reduction engine capable of handling all noise sources.
The minimum target device for the combined Noise Reduction netlist is XC3S1200E.