Aug 012011
 

I did this a while ago and thought it might be interesting. The 1CHIP SNES (1995~), with S-CPU, S-PPU1 and S-PPU2 united in a single chip (S-CPUN), has vastly improved picture quality over the old versions. Most notably the rising edges of the output signal are much steeper, resulting in sharper dark->bright transitions.
This is not an issue of the video encoder, it looks exactly the same via RGB (save for color balance).
Here are some examples to show the difference.
Sorry the pictures turned out quite big but it’s important not to lose any detail here. 😉
The images below show three frame captures from a “regular” SNES. Roll over them to see the 1CHIP version.

NINTENDO praesentiert

Shot 1


Yoshi's Island intro

Shot 2


sd2snes menu

Shot 3

shot 1 - old SNES
shot 1 - 1CHIP SNES
shot 2 - old SNES
shot 2 - 1CHIP SNES
shot 3 - old SNES
shot 3 - 1CHIP SNES
 Posted by at 10:26 pm

  8 Responses to “1CHIP SNES picture quality – quick comparison”

  1. Wow that is quite a difference indeed. Do you have any idea if there is some way to spot SNES units that use the new chip ? Would be nice to have one but buying tons of units and hoping to accidentally get a single chip variant is not really an option hehe.

    gilligan
    PS: i am *so* looking forward to see sd2snes as finished product some day 🙂

    • I have no idea. 😀 With German consoles you can kind of go by the color of the bottom label (black print -> likely to be a 1CHIP) but I don’t know about their distribution in USA+Japan. There might be some research going on based on serial numbers…
      EDIT: Found this: http://kyorune.com/modding/article.php?id=13

  2. Does the 1chip version of the “regular” snes need modding for rgb and svideo like the snesjr?

  3. I have a small board SNES but its not a 1CHIP, I may go ahead and open it and take some pictures. Maybe you all can help me out.

  4. Here is the picture.
    I have a model 1 SNES with a 1995 revision board.
    http://img404.imageshack.us/img404/4742/dscf5497s.jpg

    as you can see from the pic the chipset is the same as the large board.

    http://kyorune.com/modding/file.php?art=1&file=1
    As seen here the model 1 1CHIP board from a PAL system.

    There probably isnt a 1CHIP NTSC/U Model1 SNES. I am planning on buying another SNES to see what’s up.

  5. wow, seriously. impressive screenshots of… a title screen?
    hahah

    thank you still ; ) still useful
    im wondering, might the 2 chip version actually make the games look more retro?
    new one looks like an emulator!
    by the way, how did you make those screen shots?

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