Other benchmarks from the same group do show the memory usage and both node and Java are quite bad, as expected. Node is spectacularly bad at some, using 1.8 GB vs Java's 384M or C++'s 155M for example.
System programing languages int the 90's with GC faired pretty well in this area.
Naturally they had much more control over GC, how value types were handled and manually allocation on unsafe modules.