The smaller card is the Prism 24

The FrameMachine is a full length Zorro II capture card with SVHS and FBAS inputs and contains 1MB of 30ns RAM. It also plugs into a video slot, however the video slot is only used, if a Prism 24 is attached to the card, which adds genlocking capabilities to the FrameMachine. The original version of the FrameMachine is intended for the ECS/OCS video slots, however the FrameMachine II is designed for use with the AGA video slot. An optional "Denise" adaptor was available if the card was intended to be used in an A2000, because the A2000 video slot is not inline with a Zorro II slot.

Please also see the FrameMachine II

Thanks to Alex Lupták