Density of Silver = 10.5 g / cm^3
Density of Lead = 11.34 g / cm^3
So the masses of each given a volume of 1 cm^3 is:
mass of Silver = 10.5 grams
mass of Lead = 11.34 grams
So we see that Lead has greater mass for similar volume.
The difference is:
11.34 – 10.5 = 0.84 grams