Cider is close to WINE (and has some of the downsides of using WINE like technology) but it is a private piece of tech related to WINE but not WINE itself.
Cider is a fork of Wine. At one time it was know as WineX.. a gaming oriented version of Wine... then it became Cedega on Linux.. then Cider on Mac.
SO it went from Wine > WineX > Cedega > Cider
So it is Wine... just a different branch.
Transgaming caused controversy in the community by going closed source and halting giving code back to the Wine project instead going commercial with their Wine fork.
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There is quite a bit of a difference though - running a console game on a PC means translating Cell (PS3's CPU) instructions into x86 instructions on the fly which involves a huge performance hit. Running a x86 Windows game on a x86 Mac (with support libraries to provide the Windows APIs / frameworks) needs no instruction translation.
Similar concepts but generally very different performance.
That's true.. and typically even Wine\Cider wrapped games have vastly better performance than even say.. some Wii games running in emulation such as Mario Galaxy.
Hell, they even chose not to bother with emulation for newer systems on Xbox One and PS4 instead opting for cloud gaming for backward compatibility. I'd bet that a ~1.7Ghz x86 AMD CPU doesn't have enough power to emulate recent consoles.
However, getting back to games on Mac.. sometimes the performance hinges on if say.. the D3D functions get mapped correctly to the equivalent in OpenGL, or the sound is working properly and is not dragging the game down, etc.
For example if a game has the lens flares improperly implemented then it can bring the frame rate down on just about any system no matter the age of the game. On my previous iMac certain games in Wine like DMC4 only had decent performance if I disable the sound in the wrapper.
But yeah, we'd probably need a computer made 5-10 years from now to run commercial PS3 games in an emulator. That'd be an order of magnitude more demanding than anything we run.. native or wrapped.