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The Exiled · 20.03.2024., 15:03

Citiraj:

nVidia Blackwell GeForce RTX to feature same 5nm-based TSMC 4N foundry node as GB100 AI GPU

Citiraj:

Following Monday's blockbuster announcements of the "Blackwell" architecture and nVidia's B100, B200, and GB200 AI GPUs, all eyes are now on its client graphics derivatives, or the GeForce RTX GPUs that implement "Blackwell" as a graphics architecture. Leading the effort will be the new GB202 ASIC, a successor to the AD102 powering the current RTX 4090. This will be nVidia's biggest GPU with raster graphics and ray tracing capabilities. The GB202 is rumored to be followed by the GB203 in the premium segment, the GB205 a notch lower, and the GB206 further down the stack. Kopite7kimi, a reliable source with nVidia leaks, says that the GB202 silicon will be built on the same TSMC 4N foundry node as the GB100.

TSMC 4N is a derivative of the company's mainline N4P node, the "N" in 4N stands for nVidia. This is a nodelet that TSMC designed with optimization for nVidia SoCs. TSMC still considers the 4N as a derivative of the 5nm EUV node. There is very little public information on the power- and transistor density improvements of the TSMC 4N over TSMC N5. For reference, the N4P, which TSMC regards as a 5nm derivative, offers a 6% transistor-density improvement, and a 22% power efficiency improvement. In related news, Kopite7kimi says that with "Blackwell," nVidia is focusing on enlarging the L1 caches of the streaming multiprocessors (SM), which suggests a design focus on increasing the performance at an SM-level.

Izvor: TechPowerUp

nVidia unveils powerful Blackwell GPU architecture for next-gen AI workloads at GTC

Citiraj:

The GB200 includes a pair of Blackwell GPUs mated both to each other and to a 72-core "Grace" CPU. The Blackwell GPUs have their own HBM3e memory, up to 192 GB apiece, while the Grace CPU can have up to 480GB of LPDDR5X memory attached. The whole thing is connected with the new 5th-generation NVLink, but we'll talk more about that in a bit. First, let's look a little deeper at the Blackwell GPU itself. The full-power Blackwell GPU is indeed two "reticle-sized dies" attached with the proprietary "NV-HBI" high-bandwidth interface. nVidia says that the connection between the two pieces of silicon operates at up to 10 TB/second and offers "full performance with no compromises."

nVidia Blackwell architecture and B200/B100 accelerators announced: Going bigger with smaller data

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