AMD Phenom II X4 940 Review :: Introduction

03-27-2009 · Category: Hardware - Processors

By Ben Sun

The Central Processing Unit or CPU is the brains of the modern computer. Two companies have been at each other's throats for many years, AMD and Intel. With the advent of the Core 2 CPU, Intel has been the dominant CPU maker in terms of performance, as AMD's CPUs have simply not competed in pure performance. AMD has been forced to offer their CPUs at a value proposition to compete in the market place.

In late 2007 AMD launched their Phenom CPUs to mostly mediocre acclaim. This CPU had the problem of lower than expected performance and had an issue with TLB instructions that showed lower performance in benchmarks. These were the first AMD CPUs to have quad cores on one processor die in one package. This differed from Intel's approach to the Core 2 Quad which had two dual core packages on one die.

Last year AMD released the B3 stepping of the Phenom CPU which fixed the TLB erratum and offered higher performance. While this improved performance, this did not fix the fundamental issues with Phenom, lower performance than the competition and forced AMD to lower the prices to sell them in a difficult economy that has only gotten worse. On January 7th AMD launched their second generation Phenom II X4. Today's review is on the Phenom II X4 940 CPU.