No, they are different.
The Compadre is true 180 ED, (accepts all metals), the Silver is 120.
The Compadre has older and different circuitry, a throwback model before high gain-low noise became all the rage because everyone started screaming for more depth.
All Tesoros are great and pretty sensitive especially with sniper coils which up the sensitivity a bit, but there are some things about the Compadre and what it can do and find in certain situations that is otherworldly.
Nothing I have ever used including a Vaq with a sniper coil, no combinations of detectors, coils or settings can find targets that are near, next to or even leaning on big metal anywhere as easily and effortlessly as the Compadre can by listening for that double beep.
Nothing.
As far as gold all Tesoros will do a fine job on most, but as far as the extreme smaller micro jewelry like gold pinbacks for earrings or very tiny studs I believe the Compadre will hit harder and see them better.
Those types are more rare, rings should not be a problem for either and the Silver might get a bit deeper.
When it comes to chains I have found them with all kinds of detectors both silver and gold, but the Compadre is still the best chain sniffer I have ever swung.
If you are a jewelry hunter use anything you want but always have a Compadre handy if you want the best shot at everything out there.
Golfers have many clubs but they all have a putter.
Every hunter in this hobby should have a Compadre in the arsenal even if just used sparingly and in certain situations.
For the price of a decent coil you will get a whole detector that can and will frequently drop your jaw.