Question

consider two microprocessors having 32-bit and 640bit wide external data busses, respectfully the two processors are identical otherwise and their bus cycles are the same speed. Suppose all instructions and operands are four bytes. By what factor do the maximum data transfer rates vary

A: The 64-bit microprocessor is twice as fast
B: The 320bit microprocessor is twice as fast
C: The 64-bit microprocessor is four times faster
D: The 32-bit microprocessor is four times faster
E: Neither microprocessor is faster, both transfer data at the same speed

Answer 1

The maximum transfer rate vary between 32 bit and 64 bit processor is by factor of twice, as the 64 bit microprocessor is twice as fast compared to 32 bit microprocessor, as the 64 bit microprocessor has double the number of bits compared to the 32 bit microprocessor.

So, option A is the correct answer as the 64 but microprocessor is twice as fast compared to 32 bit microprocessor.

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