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The OP made too general of a statement because there are certain cases where V8 can preform better than the JVM; however, generally Java does seem to perform better (ignoring startup time).

http://benchmarksgame.alioth.debian.org/u64/benchmark.php?te...

In the linked benchmarks, V8 only has a decided advantage executing regexes.

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Heh. Last time I checked v8 regexes were really fast, except their string builder was a disaster... it wrapped every piece of string as a js object (gc and everything).

Sounds familiar to Java's own string concatenation. In Java you use StringBuilder / Buffer to create larger strings from smaller ones; in Node you'd use Buffers, although I never dived too deep into those.

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