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AMD makes its next step in GPU dominance with Vega

By: Anthony Garreffa | AMD Radeon GPU in Video Cards | Posted: Jan 5, 2017 11:49 pm

AMD has included a new programmable geometry pipeline with the Vega GPU architecture, which has over 2x peak throughput per clock.




We all remember Vertex and Geometry shaders, but now we have a Primitive shader - which, isn't - well, primitive at all.




The new Geometry engine is super efficient, as it works with an 'intelligent workgroup distributor' that spreads the load across the GPU much more efficiently.



I did say that there is a lot of changes with Vega, and the next-generation compute engine is another big part of the new GPU architecture from AMD.



Introducing the Vega NCU


Vega GPU, you mean - Anthony? Nope, the Vega NCU - AMD's next-generation compute unit.




We have 512 8-bit operations per clock, 256 16-bit operations per clock, and 128 32-bit operations per clock. AMD also adds that double precision rate is configurable, for compute-intensive applications and systems.




The massive workloads that some users will have will benefit from the 'rapid packed math' that the Vega NCU is capable of.




Better yet, the Vega NCU is optimized for higher clock speeds and higher IPC - music to my ears.


AMD has also added that they've been "working on reducing memory bandwidth consumption for many years".



Next-Generation Pixel Engine


AMD has also baked in a new pixel engine into the Vega NCU, which is helped by the draw stream binning rasterizer.




The new draw stream binning rasterizer is "designed to improve performance and save power" by only fetching once, thanks to the new on-chip bin cache.

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