NVIDIA's Next-Gen Turing GPU
The new Turing GPU architecture is the most advanced GPU architecture NVIDIA has ever made, with NVIDIA having two "engines" at the core of the Turing GPU architecture. The first is the accelerating Ray Tracing, while the other side of Turing handles acceleration of AI Inferencing.
Turing is by and far not a gaming GPU in any way shape or form here, with NVIDIA unveiling not one but three new Quarto RTX branded professional graphics cards. The new Quadro RTX graphics cards all feature RT cores (Ray Tracing Cores) as well as Tensor Cores for deep learning acceleration, but NVIDIA hasn't been clear on whether the Tensor Cores have been tweaked under Turing compared to the Volta GPU architecture.
NVIDIA has also made fundamental changes to the way the Streaming Multiprocessor (SM) GPU units work, with Integer cores separated into their own indivudal blocks, a move that was used with the Volta GPU architecture.
Turing is an absolute beast coming in at 18.6 billion transistors and a huge 754mm2 die size. If we compare this to the Volta-based V100 GPU with 21 billion transistors and 815mm2 die size, we can see Turing has done quite a lot with what it has. Pascal in comparison has 11.8 billion transistors on a die size of 471mm2.
There are a huge 4608 CUDA cores on the flagship Quadro RTX 8000 card, but this is still down from the Volta-based TITAN V which packs 5120 CUDA cores based on the Volta GPU architecture. NVIDIA hasn't shown off proper performance metrics and benchmarks on the Turing-based Quadro RTX range of cards so once that happens we'll be able to properly compare the Volta-based cards (TITAN V, Quadro GV100, etc) against the new Turing-based Quadro RTX 8000/6000/5000 cards.
The big difference between Volta and Turing is that Volta uses HBM2 while Turing uses GDDR6, however even GDDR6 in its basic 14Gbps form is giving numbers that can beat the HBM2-based cards. There's also more framebuffer with 48GB of GDDR6 available on the flagship Quadro RTX 8000 compared to 16GB on the original Volta-based cards, and 32GB on the new Quadro GV100 and upgraded Tesla V100 unveiled a few months ago at NVIDIA GTC 2018.
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