PC Engine CD/TurboGrafx CD Vs Mega-CD/Sega CD - which is better?

[esteban]

And by the time the SNES CD-ROM was supposed to come out, the PC Engine CD had 2304KB "EXP RAM", not just 64.

Did any of the later Mega-CD versions (like the CDX and brethren) have a double-speed disc drive?

I did a preliminary search but didn't find any thing useful.

I'm not suggesting that the CDX or Wondermega or ______ represent stock hardware... I'm just curious what features were available and at what time.

[Black Tiger]

No, a faster drive would screw up the games.

[xelement5x]

Yeah, the only Sega hardware I can think of that might have a different drive would be the LaserActive, but when the PAC is inserted I would assume drive speed is limited by the other components.

[Bonknuts]

He forgot the ADPCM in the Turbo and the 8-channel PCM in the Sega CD. Sure he said ASIC but that's really more for the scaling n' rotation, isn't it?

Yeah. ASIC is just a scaler/rotation chip. The Ricoh 8 channel sound chip is its own thing.