OpenCL Vs Cuda Vs. CPU Only - Sony VegasPro 13 and Premiere Pro CS6
# The Gaming GPU vs Professional Video Rendering: A Comprehensive Test
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## Introduction
Ever since I started creating videos for my audience, I have primarily used Adobe Premiere Pro—a professional rendering application that supports CUDA acceleration. However, I never took the time to test whether using a gaming GPU could improve rendering performance. I always assumed that having a gaming GPU would provide a significant advantage over relying solely on the CPU.
Recently, with the arrival of the AMD Radeon R9 290 from Gigabyte and my existing NVIDIA GTX 970, I decided to conduct some apples-to-apples tests to see how these gaming GPUs perform in real-world scenarios. My test setup includes an Intel i7-5820K processor clocked at 4.2 GHz, which is more than capable of handling demanding tasks on its own.
The purpose of this article is to share the results of my benchmarks and provide insights into whether gaming GPUs can make a noticeable difference in video rendering times.
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## Benchmarks: Vegas Pro 13
For the first test, I used Vegas Pro 13 (a trial edition), which supports OpenCL acceleration for AMD graphics cards. The task was to render a 4-minute and 38-second video at 1080p best quality.
- **CPU-only rendering:** This took 4 minutes and 38 seconds.
- **GTX 970 with CUDA support:** This took 5 minutes and 6 seconds.
- **Radeon R9 290 with OpenCL support (overclocked):** This took 4 minutes and 50 seconds.
Interestingly, the CPU-only rendering outperformed both gaming GPUs. The GPU acceleration in Vegas Pro 13 did not result in any significant time reduction compared to relying solely on the CPU.
This outcome was surprising, as I expected at least some improvement from using a high-end gaming GPU. It appears that in this specific application, the gaming GPU provided no tangible benefits.
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## Benchmarks: Adobe Premiere Pro CS6
Next, I tested Adobe Premiere Pro CS6, which uses the Mercury engine and supports CUDA acceleration. The test involved rendering the same 4-minute-and-38-second video at 1080p best quality.
- **CPU-only rendering:** This took 4 minutes and 57 seconds.
- **GTX 970 with CUDA support:** This improved rendering time by just 12 seconds, completing in 4 minutes and 45 seconds.
This result was consistent with the Vegas Pro test—using a gaming GPU provided minimal benefits for rendering times. Even though Premiere Pro supports CUDA acceleration, the impact of using a gaming GPU was negligible.
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## Dual-Core Experiment
Curiosity led me to explore further: what if I reduced the number of CPU cores available? I disabled four cores on my Intel i7-5820K, leaving only two active cores running at 4.2 GHz, and tested rendering with the GTX 970 again in Premiere Pro CS6.
The result was staggering: it took a full 10 minutes and 22 seconds to render the same video. This experiment reinforced the importance of having a powerful CPU for rendering tasks. Even with GPU acceleration, the CPU remains the bottleneck if it is underpowered or constrained.
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## Conclusion
From these tests, it is evident that gaming GPUs like the GTX 970 and R9 290 did not significantly improve rendering times in either Vegas Pro 13 or Adobe Premiere Pro CS6. In some cases, such as with Vegas Pro, using a GPU actually worsened performance compared to CPU-only rendering.
If you are serious about professional video editing or rendering, investing in a high-end CPU or a professional-grade GPU is far more beneficial than relying on gaming GPUs for acceleration. While gaming GPUs may offer advantages in other areas—such as display output or preview work—they fall short when it comes to reducing render times.
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## Final Thoughts
I hope you enjoyed this detailed benchmarking video and article. If you have any questions or want to share your experiences, feel free to leave a comment below. Don’t forget to give the video a thumbs-up if you found it helpful! Stay tuned for more tech videos in the future—peace out, and catch you guys soon!
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