Start Safari and Chrome on a mac, open several tabs and observe: - Memory usage - Energy usage Then open https://browserbench.org https://browserbench.org an

Start Safari and Chrome on a mac, open several tabs and observe: - Memory usage - Energy usage Then open https://browserbench.org https://browserbench.org and do the benchmarks. Webkit will dominate Blink (and for that matter Gecko) in all categories.