Technically Speaking: What DDR4 Memory Means For Computing

Lower Power

The DDR4 spec defines memory that operates on 1.2V, compared with DDR3's 1.5V and 1.35V low-voltage spec. According to Samsung, its DDR4 RDIMMs consume about 40 percent less power than DDR3 memory modules operating at 1.35V. We're not sure what math they used to arrive at that finding, but in a world increasingly mindful of power consumption and rising energy costs, 1.2V is better than 1.35V.

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