英伟达准备推出下一代Blackwell架构RTX 50系列显卡，预计效能大幅提升，迄今已有不少关于GPU配置、可能的SKU清单、预计发布日期等传言，近期，GeForce RTX 5090、GeForce RTX 5080规格进一步曝光。

GeForce RTX 5090采用代号GB202-300-A1的Blackwell架构，预计基于21,760个CUDA核心的GB202图形处理器，而不是之前传言24,576个核心，并搭备使用512 bit内存接口带宽的32GB GDDR7内存，功耗高达600W。

GeForce RTX 5080则采用代号GB203-400-A1的Blackwell架构，功耗400W（GeForce RTX 4080系列为320W），配备10,752个CUDA核心、16GBGDDR7内存与256 bit内存接口带宽。

整体而言，RTX 5080性能几乎是RTX 5090对折，外界还不确定为何英伟达决定以这种方式建立下一代产品线，但猜测英伟达可能想借此限制某些消费级显卡作为AI显卡替代品，但由于GDDR7内存带宽大幅提升，RTX 5080在高分辨率方面应该还是明显优于前身。

若从技术方面解释，则GB202处理器可能由2个GB203处理器组成，或者说RTX 5090很像5080的双芯片版本。

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