NVIDIA Pascal Details Revealed: Will Have 16GB Of HBM2 And 1TB/s Bandwidth
NVIDIA have finally spilled the beans on some Pascal specifications at the Japanese edition of NVIDIA GTC. Due in 2016, the new NVIDIA Pascal architecture will be built using a brand new 16nm FinFET process, which shifts from the age old 2D planar based transistor layout, to a 3D arrangement. It’s believed that Pascal will be able to run 32GB of HBM2, while most products will launch with 16GB and memory bandwidth will skyrocket from the move to HBM2 from GDDR5, with 1TB/s speeds while internally speeds will surpass 2TB/s.
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NVIDIA’s Marc Hamilton said: “Using 3D memory, not only the memory capacity will go up, the memory bandwidth will go up significantly. With a much faster GPU, and higher memory bandwidth, the existing interconnects in the server are just plain outdated. So, we had to develop our own interconnect called NVLink, five times faster than existing technology.”
Unlike Maxwell, which will not be getting a dual GPU, Pascal will be available in multi-GPU packaging, and will also be fully DirectX 12 compliant. Of particular interest is no mention of how ECC would affect overheads and performance, since Error Correcting Code does use up some bandwidth. With so much memory on hand, ECC with HBM is a bit more flexible in that the memory chips can each independently decide on whether they should implement ECC, but NVIDIA did not disclose how it would impact ECC would have on memory performance. 2016 is certainly shaping up to be an interesting year for new technology hitting the PC space