Samsung NP300V5A-S1CRU SCALA3-15,PETRONAS-15 BA41-01763A Schematic Circuit Diagram
The Processor Performance Comparing
Different instruction execution periods (in cycles) make it impossible to compare systems just on the basis of clock speed or cycles per second. How can two processors with the same clock speed function differently, one "faster" than the other? The answer is straightforward: efficiency. The 486 is considered faster than the 386 because it can execute twice as many instructions in the same period of time. A Pentium, on the other hand, performs almost twice as many instructions in the same amount of cycles as a 486. Because they can execute around 50 percent more instructions in the same number of cycles, the Pentium II and III are about 50 percent quicker than a comparable Pentium at the same clock speed.
Unfortunately, following the Pentium III, comparing CPUs only on the basis of a clock speed becomes much more difficult. This is due to the fact that different internal layouts make certain processors more efficient than others, yet these same efficiency variations also result in circuits that can function at different maximum speeds. The faster the clock speed a circuit can achieve, the less efficient it is, and vice versa. Another difference is that subsequent CPUs have different L2 and L3 cache sizes.
The usage of several CPU cores is the ultimate difference in modern processors. Eight CPU cores are found in high-end processors such as the Intel Core i7-5960X and AMD FX-9590. The Intel Core i7-5960X additionally comes with 20MB of cache RAM, but the AMD FX-9590 only has 16MB. Increasing the number of CPU cores, as expected, may significantly improve total processor performance.