Navlink: Currently no sound and slowww.. games range from 10-15fps at best on ~2ghz in general but some go either side of that figure
This is still with interpreter and a w.i.p dynarec with much optimization techniques yet to be done already makes a sega demo go from around 10fps to 20-30fps on my p3-850mhz..
Also the dreamcast can actually emulate a playstation, and unlike the flickering non-aliased 320x240 mess that ps1 on ps2 is, the dc makes the games run at 640x480 with FSAA
However Sony put a block to the emulator gaining much success, and they were only able to release 3 emulated games for the system - Gran Turismo 2, Metal Gear Solid, and Tekken 3 - before Sony truly killed them.
Here's some screeshots:
http://www.gamekult.com/tout/jeux/fi...reenshots.html