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NVIDIA Pascal cards limited to 16GB HBM2 memory?

Posted on Thursday, September 24 2015 @ 14:38:17 CEST by

NVIDIA shared some more information about its upcoming Pascal GPU as last week's GPU Technology Conference in Japan. While previous presentations talked about memory configurations of up to 32GB (for the professional cards), it seems the company has recently limited the maximum memory of Pascal to 16GB. The GPU uses HBM2 memory with a banwidth of 1TB/s, it's an all-new architecture with several new features like mixed precision (FP16, FP32, FP64-, NVLink interconnect technology and unified memory addressing.

How much memory the consumer versions of Pascal will get is still unknown. KitGuru speculates the change could be the result of production issues with HBM2.

To increase the memory capacity to 32GB, there need to be four 8GB HBM2 chips and each of these chips features eight vertically stacked 8Gb memory dies. If there are indeed production issues, this means AMD will be limited to 16GB HBM2 workstation cards as well.

NVIDIA Pascal feature slide



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