What performance coule one expect from these devices:

http://cgi.ebay.com/Altera-Cyclone-EP1C6-NIOSII-EP1C6T144C8-FPGA-Dev-board-/120724210798

http://cgi.ebay.com/Cyclone-III-FPGA-EP3C25-Board-USB-Blaster-12864LCD-/260735361173

http://cgi.ebay.com/Altera-Cyclone-NIOS-II-FPGA-Development-Board-EP2C8Q208-/250809160224

http://cgi.ebay.com/Cyclone-II-FPGA-EP2C8-board-/280447719711

http://cgi.ebay.com/Altera-Cyclone-NIOS-II-FPGA-Board-ByteBlaster-2C35-VGA-/160487569726