  Data movement is a key bottleneck in terms of both performance and energy
efficiency in modern HPC systems. The NEC SX-series supercomputers have a long
history of accelerating memory-intensive HPC applications by providing
sufficient memory bandwidth to applications. In this paper, we analyze the
performance of a prototype SX-Aurora TSUBASA supercomputer equipped with the
brand-new Vector Engine (VE30) processor. VE30 is the first major update to the
Vector Engine processor series, and offers significantly improved memory access
performance due to its renewed memory subsystem. Moreover, it introduces new
instructions and incorporates architectural advancements tailored for
accelerating memory-intensive applications. Using standard benchmarks, we
demonstrate that VE30 considerably outperforms other processors in both
performance and efficiency of memory-intensive applications. We also evaluate
VE30 using applications including SPEChpc, and show that VE30 can run
real-world applications with high performance. Finally, we discuss performance
tuning techniques to obtain maximum performance from VE30.
