AMQP 1.0 Benchmarks
This blog post demonstrates that native AMQP 1.0 in RabbitMQ 4.0 provides significant performance and scalability improvements compared to AMQP 1.0 in RabbitMQ 3.13.
Additionally, this blog post suggests that AMQP 1.0 can perform slightly better than AMQP 0.9.1 in RabbitMQ 4.0.