Question

The number of pixels that can be manipulated in a single register by the CPU using MMX architecture is

(a) 4

(b) 6

(c) 8

(d) 10

I had been asked this question in unit test.

The question is from Enhanced Instruction Set of Pentium, Intel MMX Architecture topic in division Recent Advancements in Microprocessor Architecture of Microprocessor

Answer 1

Right choice is (c) 8

To explain I would say: Any CPU can manipulate only one pixel at a time. But by using MMX architecture, we can manipulate eight such pixels, packed in a single 64-bit register.