DavidGraham
Veteran
What's the current triangle rate for Titan RTX? how is it even calculated nowadays?
DavidGraham
Veteran
Any luck guys?
I thought it was unchanged from pascal
The setup rate and fragment output is the same as in Pascal. The geometry processing (culling/tessellation/projection) throughput is a bit higher, since Turing has much more multi-processors to balance the workload within a GPC.
Under heavy tessellation, the TU104 slightly edges GP102:
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I think most of it. 1 geo unit for every 2 SMs in turing right? That gives a 2080 24 against the 28 of a 1080ti. The higher clockspeeds and maybe some slight efficiency improvements seem to line up with the tessellation benchmarks. Im not aware of any reviews that tested geometry throughput with anything other than tessmark and the microsoft tessellation benchmark used by PCGamesHardware. Other than mesh shading, nvidia doesnt mention geometry improvements in any of its documents.
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Deleted member 2197
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There were a handful of reviews that used other tests ... Comptoir-hardware used PixMark Julia 32, GIMark and Tessmark.
http://www.comptoir-hardware.com/ar...st-nvidia-geforce-rtx-2080-super.html?start=3
Edit: Updated link to include current cards.
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The geometry workload is distributed at SM level, no shared hardware for that. Nvidia simply throttles the SMs of how much cycles they can spend on geometry and since Turing has plenty of them, it would be an overkill (and power draining) to keep processing primitives at full tilt if the next pipeline stage can't consume that much data. That is evident, by looking at how the number of SMs per GPC cluster has been rising steadily since Kepler.
Even within a generation there is a difference: 3 cycles per polygon for each SM in GM200 and 2 cycles for GM204.
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Deleted member 13524
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Nvidia doesn't need to push geometry performance any higher. They can just stop lobbying for games to use effects that generate sub-pixel triangles like hairworks on Witcher 3.
They will start to lobby for mesh shaders and replacing of the geometry pipeline instead.
I wasnt aware they artificially throttled geometry rates. In one of PCGamesHardware GPU reviews a while back they had a special bench showing geometry rates for various levels of culling and geforce cards fell further behind AMD as culling percentages got lower. I think AMD cards were over twice as fast at 0% culled.
The test with 0% culling was hitting the setup pipelines full time, so in this case the limit was not in geometry processing. Older generations of Nvidia GPUs were still rasterizing at half-rate (sans tessellation) and AMD could have benchmarked better then.
Whats the rasterization rate for pascal and turing? Has it changed since maxwell
No performance changes, only feature updates like higher tier conservative rasterization support.
Is the half rate likely to ever be a bottleneck in any realistic gaming scenario?
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Deleted member 2197
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Nvidia Could Be Working on Another GeForce RTX GPU
https://www.tomshardware.com/news/nvidia-geforce-rtx-t10-8-tu102,40166.html
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Deleted member 2197
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NVIDIA Beats Intel to Integer Scaling, but not on all Cards
https://www.techpowerup.com/258445/nvidia-beats-intel-to-integer-scaling-but-not-on-all-cards
GeForce 436.02 Gamescom-special drivers. among several new features and performance updates, introduced integer scaling, a resolution upscaling algorithm that scales up extremely low-resolution visuals to a more eye-pleasing blocky pixellated lines by multiplying pixels in a "nearest-neighbor" pattern without changing their color, as opposed to bilinear upscaling, that blurs the image by attempting to add details where none exist, by altering colors of multiplied pixels.
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NVIDIA's integer upscaling feature has been added only to its "Turing" architecture GPUs (both RTX 20-series and GTX 16-series), but not on older generations. NVIDIA explains that this is thanks to a "hardware-accelerated programmable scaling filter" that was introduced with "Turing." Why this is a big deal? The gaming community has a newfound love for retro games from the 80's thru 90's, with the growing popularity of emulators and old games being played through DOSBox. Many small indie game studios are responding to this craze with hundreds of new titles taking a neo-retro pixellated aesthetic (eg: "Fez").
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Intel originally announced an integer upscaler this June that will be exclusive to the company's new Gen11 graphics architecture, since older generations of its iGPUs "lack the hardware requirements" to pull it off. Intel's driver updates that add integer-scaling are set to arrive toward the end of this month, and even when they do, only a tiny fraction of Intel hardware actually benefit from the feature (notebooks and tablets that use "Ice Lake" processors).
https://www.techpowerup.com/258445/nvidia-beats-intel-to-integer-scaling-but-not-on-all-cards
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Deleted member 2197
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NAS boosts Wolfenstein: Youngblood performance by up to 15%
"Using VRS [Variable Rate Shading], we created NVIDIA Adaptive Shading (NAS), which combines two forms of VRS into one content aware option"
August 26, 2019
NAS Deep Dive
https://www.nvidia.com/en-us/geforce/news/nvidia-adaptive-shading-a-deep-dive/
"Using VRS [Variable Rate Shading], we created NVIDIA Adaptive Shading (NAS), which combines two forms of VRS into one content aware option"
August 26, 2019
NAS Deep Dive
https://www.nvidia.com/en-us/geforce/news/nvidia-adaptive-shading-a-deep-dive/
Cool I suppose but still feels like cheating. VRS makes the most sense to me for foveated rendering in VR.
