Question

Each logical processor has

(a) one 64-byte streaming buffer

(b) one 32-byte streaming buffer

(c) two 64-byte streaming buffers

(d) two 32-byte streaming buffers

I had been asked this question during an online exam.

This interesting question is from Netburst Microarchitecture For Pentium4 -2,  Instruction Translation Lookaside Buffer (ITLB) and Branch Prediction topic in division Pentium 4 processor of Microprocessor

Answer 1

Right option is (c) two 64-byte streaming buffers

To explain: Each logic processor has its own set of two 64-byte streaming buffers, which store the instruction bytes and subsequently they are dispatched to the instruction decode stage.