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AMD Phenom II - DDR2 vs. DDR3 Performance

Today we compare the performance between DDR2 and DDR3 on the AM3 platform using Jetway's new combo motherboard which supports both memory types.

| AMD CPUs & APUs in CPUs, Chipsets & SoCs | Posted: Mar 11, 2009 4:00 am

Jetway Combo AM2/AM3 Motherboard Review

 

Introduction

 

Well, it's now official; AMD has finally started to embrace DDR3 memory and it's about time. Intel has already got eight chipsets out that support DDR3 memory and the Core i7 is devoted solely to DDR3 memory. In fact, Core i7 is Intel's departure from any DDR2 support. AMD has now jumped on the bandwagon, but still manages to keep some legacy support in place.

 

AM3 based processors from AMD are designed with two integrated memory controllers; a 128bit wide DDR2 memory controller and a 128bit wide DDR3 memory controller. This is made possible thanks to DDR2 and DDR3 having the same mount of pins as DDR2 modules, just differently spaced. AMD has designed AM3 processors to be able to slot into AM2+ boards to run with their DDR2 memory controllers. However, you can also place the CPU into an AM3 based board to take full advantage of the DDR3 memory controller.

 

Now, this is a time of transition. AMD wants to get the AM3 based Phenom II's out there and current AM2+ boards have already been given support for it. But what about users who don't want to spend a fortune? - Jetway has come to the party with its AM2/AM3 combo board supporting both DDR2 and DDR3 memory slots onboard. Today we will see just how much difference there is in performance between using DDR2 and DDR3 memory thanks to this very board.

 

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