Page "MIPS architecture" Paragraph 48

In 1995, the R10000 was released.

This processor was a single-chip design, ran at a faster clock speed than the R8000, and had larger 32 KB primary instruction and data caches.

It was also superscalar, but its major innovation was out-of-order execution.

Even with a single memory pipeline and simpler FPU, the vastly improved integer performance, lower price, and higher density made the R10000 preferable for most customers.