Those top 8 instructions mentioned by Keller (load and store, integer add and subtract and compare, jump and call and return) are those that matter in general-purpose and interactive applications (like an office suite or Internet browsing), whose work consists mostly of copying and searching data, with only a little amount of computations.
Nevertheless, there are also people like myself, who use computers for scientific computations and for computer-aided design, for whom any computer that is optimized only for the execution of those 8 instructions would be a piece of useless junk that would be thousands of times slower than a computer with Intel or AMD CPUs, which dedicate considerable hardware resources for the execution of double-precision floating-point fused multiply-add and division and square root.
However the SSE/SSE2/SSE3/SSSE3/SSE4.1/SSE4.2 instructions have been obsolete for more than a decade, despite the stubbornness of Intel of not providing AVX in its cheapest SKUs until a year ago, so I do not care about any benchmark that tests SSE instructions, because it is completely irrelevant for the performance of the CPU for high-performance computing.