Performance scaling for Nvidia GPUs by GPU Generation

V-Ray V-Ray GPU Announcements
1

Hardware,

  • CPU: AMD Ryzen 9 5950X 16-Core 32-Threads
  • Motherboard: Asus X570 Crosshair 7 DarkHero
  • System Memory: 128 GB DDR4 3200 CL18
  • GPUs: RTX 4080, RTX 3080, RTX 2080, GTX 1080
  • Bandwidth: PCIe Gen 4.0, x8
  • OS: Windows 11 Pro
  • Nvidia Studio drivers 536.40
  • No monitors attached to the GPU(s)

​Testing,

We have tested 4 scenes on this hardware using Progressive mode, the results are double checked. The scene are setup carefully to push the GPUs to 100% usage, to ensure accurate results. All tests run for at least one full minute

  • Pascal to Turing shows average 1.6X speedup in CUDA​
  • Turing to Ampere shows average 2.4x speedup in CUDA​ and 2.53x in RTX
  • Ampere to Ada shows average 1.87x speedup in CUDA​ and 1.86x in RTX
  • We tested the same scenes between the RTX 3090 and RTX 4090, there is 2.15x speedup in CUDA and 2.2x speedup in RTX

First Scene, Gold_Interior

Screenshot_41.png_ex=6630ec68&is=661e7768&hm=9a2a199718ce1399807c4f0524946ed91b876910f4331d87aba5002f049593a3&=&format=webp&quality=lossless&width=1440&height=810.webp
Screenshot_41.png_ex=6630ec68&is=661e7768&hm=9a2a199718ce1399807c4f0524946ed91b876910f4331d87aba5002f049593a3&=&format=webp&quality=lossless&width=1440&height=810.webp1163×654 8.82 KB

Second scene, Cabinet_01

Screenshot_39.png_ex=6630e989&is=661e7489&hm=e913703d6a5a63b11bd123965f8668be69eeb8fca2f240cc835a3169d32e5aec&=&format=webp&quality=lossless&width=1440&height=807.webp
Screenshot_39.png_ex=6630e989&is=661e7489&hm=e913703d6a5a63b11bd123965f8668be69eeb8fca2f240cc835a3169d32e5aec&=&format=webp&quality=lossless&width=1440&height=807.webp1166×654 8.58 KB

Third scene, Nutcracker

Screenshot_40.png_ex=6630ec68&is=661e7768&hm=02e53631859fa8c8386259916d8337ae5f50d760fe11a5bfe2535a6ca9ba2a7e&=&format=webp&quality=lossless&width=1440&height=802.webp
Screenshot_40.png_ex=6630ec68&is=661e7768&hm=02e53631859fa8c8386259916d8337ae5f50d760fe11a5bfe2535a6ca9ba2a7e&=&format=webp&quality=lossless&width=1440&height=802.webp1164×649 7.71 KB

​
Fourth scene, Forest_001
Note, this scene includes thousands of leaves and grass objects, and has all shading baked to textures, hence showing a big boost for RTX mode. In most cases CUDA mode should be close to RTX mode in performance
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Screenshot_42.png_ex=6630ec67&is=661e7767&hm=4234e785619851ab8c8715548d325e16ff45fccebf0da5768518ceb3d07938bf&.png
Screenshot_42.png_ex=6630ec67&is=661e7767&hm=4234e785619851ab8c8715548d325e16ff45fccebf0da5768518ceb3d07938bf&.png1164×650 5.47 KB

​
Conclusion,

V-Ray GPU shows very good performance scaling on the latest NVidia GPU generations, nearly doubling the performance every generation.

Best,
Muhammed ​

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