Looks like 3D/FRC chip "Napoli" in D8000 (Genoa-P/SDP1002 SoC based models) is located on T-con board (like in B650's ; in T-VAL*/C650/C750 there were additional 3D and/or FRC chips on the mainboard for that). Analog front end/video processor: Arsenal-WW chip (SDP94): just like in C650/C750 C-Series.
Encoder chip on the D8000 mainboard: apparently it's Nexell NXP2120 (http://nexell.co.kr/kor/pro/pro01.html). Not very impressive specs (MPEG4 SP 720x480@30fps max); 1920x1080 real-time encoding is probably out of the question.. I guess Mobilygen/Maxim MG3500 was too pricey

CPLD chip (Altera Max II, AFAIRC): I wonder what is it used for, exactly? It's reprogrammable..
D6XXX models (Genoa-S/SDP1001 based models) - two variants:
- Genoa-S alone (built-in "poor man's" 3D/FRC in main SoC); no additional chips for 3D/FRC ( and no external DRAMs on T-con board == probably just plain/dumb timing controller)
- Genoa-S + Samsung "Parma" chip; I wonder which actual D-series models are using this configuration (if any ?).