My understanding is that the 480p resolution enabled by component is disabled on PAL Gamecube games, I believe that you'll get the same resolution as using composite, however the colours and clarity should still be noticeably better.
jawafour wrote:I'm unsure, AXL... I've not played a GC game . I had assumed that, with a 480p 60hz output, component was the best display option from the Wii. Perhaps I am wrong on this!
Gamecube games could output at 480p but not on PAL systems, even with the official component cables as Nintendo locked that feature out. My understanding is that although the Wii itself had games that could ouput at 480p you'd only get 480i or 576i when playing in Gamecube modes.
Composite, RGB and Component can all carry that resolution. However to my knowledge component however splits the video signal into proper RGB output giving more vivid colour and a clearer picture, it's the best option from a Wii. Whereas from a Gamecube the best option is an RGB scart lead which does the same sort of thing, As AXL said it definitely looks best on a CRT too. The official RGB scart can be hard to get hold of these days but https://www.retrogamingcables.co.uk/ sell one at a fantastic price and the quality of cables for that and other machines are excellent.
This site - http://retrorgb.com/ - offers really good guidance on the best methods of displaying from older systems.
It does get a bit complicated to set up, but you can use homebrew to force 480p on many PAL GC games. I remember doing it on Super Monkey Ball and Mario Sunshine with pleasingly improved results. It won't work on 50Hz only games though.
You'll see no improvement switching from component to RGB on the Wii for GameCube games on an HDTV, unless your TV handles interlaced component signals poorly, and for some reason, upscales better via RGB input (which it may do as RGB are SD signals, so it's logical the TV might upscale that input).
All this comes down to is how well your HDTV handles upscaling SD signals, some are OK, others are terrible. As most GameCube games are in 4:3 I'd find a 14-21" flat CRT TV and set a Wii/GC up somewhere else with an RGB cable if you don't want it to look too bad, but fortunately my HDTV handles SD very well. 240p is completely strawberry floated though so I use a PVM for that and N64 - PS games are all handled well via backwards compatible PS3. So I'd do that or get an HDTV that handles SD better, or find an input that is handled better (it may well be RGB SCART).
Generally speaking, any SD signal blown up to 32/37"+ is going to look like a blurry mess by today's standards, no matter how you sugar coat it - unless it's being rendered in 2:1, 4:1 etc. in a 1080p emulator like Wii U (where must the games' brightness is strawberry floated) i.e. you're getting clean square renditions of pixels. Then it just looks something like Shovel Knight. Super Metroid on Wii U is a pretty good example as that game isn't ruined (although it's "optimise" 50Hz, plays well for me).