全系列双敏抢占DDR2制高点-快科技-科技改变生活

全系列双敏抢占DDR2制高点

驱动之家评测室
2005年07月19日 17:51
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[DDR2飞入寻常百姓家]

还记得NV上一代显卡GeForce FX5800 Ultra吗？它就是第一款装备DDR2显存颗粒的显卡，但由于当时工艺制程的不成熟，导致性价比不高而迟迟不能被大量应用在显卡上。随着英飞凌等显存颗粒厂商的不懈努力，制造工艺得到不断的改进，GDDR2现在已经相当成熟。ATi Radeon X550的发布预示着DDR2的回归，大量的采用DDR2显存颗粒的显卡随之上市。那么GDDR2显存与DDR显存相比，有何优势呢？

在功耗和发热上，DDR2把工作电压从2.5V降到1.8V，使颗粒本身的发热量更小。由于采用了多路复用技术设计，所以DDR2显存能在不改变位宽与频率的情况下，在DDR基础上频率等效提升一倍。

双敏电子新推出的四款显卡产品全采用DDR2显存颗粒，下面就具体看看每一款产品的特点。

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