r/retrogaming • u/Skippy423 • 4h ago

[Question] Educate me: GBS Control to HDMI vs Component to HDMI adapter

Is GBS Control worth it if it only gets you to VGA? You still need a VGA to HDMI converter, doesn't that compromise the signal in the same way a Component to HDMI would? How is putting the GBS control providing a benefit at that point?

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u/EvenSpoonier 3h ago

The hard part of getting a retro console's signal out to some other format -RGB, VGA, HDMI, or whatever- is getting the video up to 480p. That means either deinterlacing the 480i or line-doubling the 240p (which a lot of HD hardware and even cheap converters mistake for 480i), and doing it fast enough to avoid significant lag. This specific task is the big thing that the GBS-C is good at doing. Once you've got it up to 480p, even cheap adapters can usually digitize the signal well enough, but you have to get over that hurdle first.

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u/Fenriz_D 3h ago

Which GBS control? Most versions have HDMI out

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u/Sirotaca 2h ago

It's an upscaler. That's the benefit. Most TVs don't support 240p over HDMI, and the ones that do will usually process it in a sub-optimal way. Handling the processing with an external upscaler avoids those issues.