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posted by mrpg on Tuesday August 21 2018, @07:45AM   Printer-friendly
from the so-is-it-fast? dept.

NVIDIA Announces the GeForce RTX 20 Series: RTX 2080 Ti & 2080 on Sept. 20th, RTX 2070 in October

NVIDIA's Gamescom 2018 keynote just wrapped up, and as many have been expecting since it was announced last month, NVIDIA is getting ready to launch their next generation of GeForce hardware. Announced at the event and going on sale starting September 20th is NVIDIA's GeForce RTX 20 series, which is succeeding the current Pascal-powered GeForce GTX 10 series. Based on NVIDIA's new Turing GPU architecture and built on TSMC's 12nm "FFN" process, NVIDIA has lofty goals, looking to drive an entire paradigm shift in how games are rendered and how PC video cards are evaluated. CEO Jensen Huang has called Turing NVIDIA's most important GPU architecture since 2006's Tesla GPU architecture (G80 GPU), and from a features standpoint it's clear that he's not overstating matters.

[...] So what does Turing bring to the table? The marquee feature across the board is hybrid rendering, which combines ray tracing with traditional rasterization to exploit the strengths of both technologies. This announcement is essentially a continuation of NVIDIA's RTX announcement from earlier this year, so if you thought that announcement was a little sparse, well then here is the rest of the story.

The big change here is that NVIDIA is going to be including even more ray tracing hardware with Turing in order to offer faster and more efficient hardware ray tracing acceleration. New to the Turing architecture is what NVIDIA is calling an RT core, the underpinnings of which we aren't fully informed on at this time, but serve as dedicated ray tracing processors. These processor blocks accelerate both ray-triangle intersection checks and bounding volume hierarchy (BVH) manipulation, the latter being a very popular data structure for storing objects for ray tracing.

NVIDIA is stating that the fastest GeForce RTX part can cast 10 Billion (Giga) rays per second, which compared to the unaccelerated Pascal is a 25x improvement in ray tracing performance.

Nvidia has confirmed that the machine learning capabilities (tensor cores) of the GPU will used to smooth out problems with ray-tracing. Real-time AI denoising (4m17s) will be used to reduce the amount of samples per pixel needed to achieve photorealism.

Previously: Microsoft Announces Directx 12 Raytracing API
Nvidia Announces Turing Architecture With Focus on Ray-Tracing and Lower-Precision Operations

Related: Real-time Ray-tracing at GDC 2014


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  • (Score: 2) by takyon on Tuesday August 21 2018, @10:27PM

    by takyon (881) <reversethis-{gro ... s} {ta} {noykat}> on Tuesday August 21 2018, @10:27PM (#724421) Journal

    https://wccftech.com/exclusive-amd-navi-gpu-roadmap-cost-zen/ [wccftech.com]

    AMD diverted resources from Vega to Ryzen. They are such a small scale company that they couldn't seem to do both properly. However, the cryptomining boom created such demand for GPUs that they managed to do OK with Vega. The head of AMD's graphics division Raja Koduri left because of this and other issues, and is now at Intel helping them get back into the discrete graphics market with a 2020 GPU release.

    AMD
    Revenue: $5.33 billion (2017)
    Net income: $43 million (2017)

    Nvidia
    Revenue: $9.714 billion (2017)
    Net income: $3.047 billion (2017)

    Intel
    Revenue: $62.76 billion (2017)
    Net income: $9.601 billion (2017)

    It's AMDavid vs. 2 Goliaths. In order to damage one, AMD had to ignore the other. Soon, AMD may be challenged on discrete GPUs by both Intel and Nvidia, while also being challenged by Intel on integrated graphics and x86 CPUs. Intel did use AMD integrated graphics on some recent chips, but that could be a temporary ploy to combat laptops with Nvidia discrete cards.

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