Radeon HD 4870 X2正式发布奠定王者地位-快科技-科技改变生活

Radeon HD 4870 X2正式发布奠定王者地位

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2008年08月12日 15:26
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AMD今天正式发布了全球最快显卡R700 Radeon HD 4870 X2，以无可争议的性能优势再次登上了3D性能王者地位，同时高达2.4TFlops的浮点计算能力也是遥遥领先。同时AMD还推出了Radeon HD 4850 X2，为主流性能级玩家提供单卡双芯内部交火方案。

Radeon HD 4870 X2正面照

背面

4800 X2系列均在一块PCB板上整合了两颗55nm RV770核心，借助支持PCI-E 2.0的PLX桥接芯片实现内部双向互连，单向带宽5GB/s，比上代3870 X2翻了一番，互连总带宽21.8GB/s，是3870 X2的三倍多，其中10GB/s来自特别加入的CrossFire Sideport模块，直接用于两颗图形核心互连。

3870 X2、4870 X2双芯互连架构示意图

Radeon HD 4870 X2正式发布奠定王者地位 CrossFire Sideport

4870 X2裸板

RV770核心

PLX PCI-E 2.0桥接芯片

海力士GDDR5显存

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