So, you linked the wrong Genesis RAM specs since according to the new image, you have KHX16C9/8 RAM and here's the correct specs,
link:
https://www.kingston.com/dataSheets/KHX16C9_8.pdf
While the RAM make (Kingston), speed (1600 Mhz), timings (CL9-9-9) and voltage (1.5V) is same between Genesis and Savage RAM, you'd still have 50:50 chance of them working together.
You see, when RAM DIMMs are made, they are tested with each other and those sticks that get along well are put into sets. First set to be made is the set of 8x RAM sticks and sold as 8x RAM sticks in a set. If the set of 8 doesn't work, it's divided into half which makes up two sets of 4. If the 4x RAM sticks do work together, the are sold as 4x RAM sticks in a set. But if the set of 4 doesn't work, it's again divided into half, making two sets of 2. Two RAM sticks that work well with each other are sold as 2x RAM sticks in a set. Those RAM sticks that doesn't want to work together at all are sold as single RAM sticks.
And because you already have a singe stick and you're planning to buy different model single stick as well, there's 0 guarantee that they work together. That's just how RAM mixing is. Though, DDR3 RAM is more forgiving in RAM mixing than DDR4 RAM is.
Long story short:
Does Savage RAM work with Genesis RAM? Maybe (50:50 chance).
Getting as same spec RAM as you already have does lower the risk of two sticks not working together but it doesn't remove the risk. Even when you get identical part number RAMs but where both were sold as single sticks, chances are still 50:50 at best.