The one in my (a bit over-saturated) picture is the earlier version of the Bally's $5 with the original Radiant Red - it is a deeper more saturated red than the newer version of Radiant Red. They really are different colors.
It appears the ones you have are the newer Radiant Red, which is paler compared to the older version.
Another way to tell is the smaller font size for LAS VEGAS, NEV. on the more recent version with the new lighter Radiant Red.
Not a perfect examples, (iPhone has trouble getting radiant red and other colors right) but the pictures below shows one older version of the Bally's $5 with the original Radiant Red and larger LAS VEGAS, NEV. font size.
The rest of the $5s in the pics are the newer version like the ones you have.
Chip furthest to the right is the older version
View attachment 1449026
4th rack from the bottom, far right chip is the older version
View attachment 1449022