http://www.overclockers.co.uk/acatalog/7800AGP_Series.html
Scroll down to the 3rd one in the list the:
Gainward BLISS GeForce 7800 GS+ SILENT 512MB GDDR3 TV-Out/Dual DVI (AGP) - Retail (GX-032-GW)
7900GT at 450mhz with 512MB ram clocked at 1250mhz
Edit:
Gainward mention it on their home page but they wont refer directly to a 7900 core
http://www.gainward.net/
Scroll down to the 3rd one in the list the:
Gainward BLISS GeForce 7800 GS+ SILENT 512MB GDDR3 TV-Out/Dual DVI (AGP) - Retail (GX-032-GW)
7900GT at 450mhz with 512MB ram clocked at 1250mhz
Edit:
Gainward mention it on their home page but they wont refer directly to a 7900 core
http://www.gainward.net/
Famous BLISS 7800GS 512MB AGP is back and improved.
The last one was based on GeForce 7800GT GPU, this one will surprise you even more.....