Question 1 [Marks: 5] Suppose gaming consoles PlayStation 5 and Xbox Series X use different implementations of AMD's Zen
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Question 1 [Marks: 5] Suppose gaming consoles PlayStation 5 and Xbox Series X use different implementations of AMD's Zen
Question 1 [Marks: 5] Suppose gaming consoles PlayStation 5 and Xbox Series X use different implementations of AMD's Zen 2 architecture. The instructions they support can be divided into four classes according to their CPI (class A, B, C, and D). PlayStation has a clock rate of 2.7 GHz and the instruction classes have CPIs of 7, 3, 4 and 6 respectively whereas Xbox has a clock rate of 3.4 GHz and the instruction classes have CPIs of 5, 3, 3 and 1 respectively. Now suppose, a program has an instruction count of 1.0 108 and the instructions are divided into classes as follows: 30% class A, 50% class B, 10% class C, and 10% class D. Now answer the following questions: 1. Calculate how many more clock cycles per instruction on average does the PlayStation take compared to the Xbox? [2 marks] 2. Calculate the difference between the execution time in these two consoles in milliseconds [2 Marks] 3. If the program runs on a reference PC with an execution time of 120 milliseconds, calculate the SPECRatio for the Playstation [1 mark]