I'd love to see some performance benchmarks for Nginx's caching vs Varnish (memory, reqs). Even if Nginx can do the same thing, if I need more RAM to do it, or

I'd love to see some performance benchmarks for Nginx's caching vs Varnish (memory, reqs). Even if Nginx can do the same thing, if I need more RAM to do it, or it handles less requests - I'd rather keep Varnish.