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  1. Home
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  3. Hardware Articles
  4. /
  5. V-Ray CPU Rendering: Intel Core i7 9700K & i9 9900K Performance

V-Ray CPU Rendering: Intel Core i7 9700K & i9 9900K Performance

Posted on October 19, 2018 by William George
Always look at the date when you read an article. Some of the content in this article is most likely out of date, as it was written on October 19, 2018. For newer information, see V-Ray CPU Rendering: Intel Core i7 9700K & i9 9900K Performance

Table of Contents

  • Introduction
  • Test Setup
  • Benchmark Results
  • Analysis & Conclusion
  • What is the Best CPU for V-Ray Rendering?

Introduction

V-Ray, from Chaos Group, is a widely used rendering engine for creating realistic 3D graphics. It includes two versions: one for rendering entirely on the CPU and the other for rendering on NVIDIA GPUs. The GPU version mostly depends on how many of which video cards are in a given workstation, with little regard for other system specs, but the CPU version is heavily impacted by both the processor's clock speed and core count.

Chaos Group also publishes a benchmark utility for V-Ray, which can test both CPU and GPU performance. This is a fantastic utility for comparing different processors and video cards, though a bit dated, and we run it here at Puget Systems on every workstation we build. We also run it on new and upcoming hardware in Labs, to see how well various components should perform with V-Ray rendering.

For this article, we used it to measure CPU-based rendering performance on the new 9th Gen Intel Core Series mainstream processors: the Core i9 9900K and Core i7 9700K. These chips are not built for rendering, but they do feature more cores than previous models in this segment – along with very high clock speeds. Their high clocks make them ideal for applications like 3D modeling, animation, and motion graphics… so seeing how well they can handle rendering tasks may be helpful for many users in those fields.

9th Gen Intel Core i9, i7, and i5 Processors

Test Setup

Since these mainstream Intel processors are not going to be in the running for the best V-Ray performance, we limited the comparison to other single-socket CPUs. We have included both Intel's higher-end Core X series as well as AMD's Threadripper models, which currently hold the title for the best single-CPU scores in V-Ray (and indeed, in CPU based rendering as a whole). We've also got the previous-generation Core i7 8700K, which these new chips are replacing, and AMD's direct competitor to them: the second-gen Ryzen.

All of those CPUs were run through the free V-Ray Benchmark utility, in CPU mode. If you would like more details about the full hardware configurations involved in these tests, click here to expand the following section.

Testing Hardware
Motherboard: Gigabyte Z370
AORUS Gaming 5
Gigabyte X470
AORUS Gaming 7 WiFi
Gigabyte X299
Designare EX
MSI MEG
X399 Creation
CPU: Intel Core i7 8700K 6 Core
3.7GHz (4.7GHz Turbo)

Intel Core i7 9700K 8 Core
3.6GHz (4.9GHz Turbo)

Intel Core i9 9900K 8 Core
3.8GHz (5.0GHz Turbo)

AMD Ryzen 2700X 8 Core
3.7GHz (4.3GHz Turbo)

Intel Core i7 7820X 8 Core
3.6GHz (4.5GHz Turbo)

Intel Core i9 7900X 10 Core
3.3GHz (4.5GHz Turbo)

Intel Core i9 7960X 16 Core
2.8GHz (4.5GHz Turbo)

Intel Core i9 7980XE 18 Core
2.6GHz (4.4GHz Turbo)
AMD TR 1950X 16 Core
3.4GHz (4.0GHz Turbo)

AMD TR 2950X 16 Core
3.5GHz (4.4GHz Turbo)

AMD TR 2990X 32 Core
3.0GHz (4.2GHz Turbo)
RAM: 4x Crucial DDR4-2666 16GB (64GB total) 8x Crucial DDR4-2666 16GB (128GB total)
GPU: NVIDIA GeForce GTX 1080 Ti 11GB
Drive: Samsung 960 Pro M.2 PCI-E x4 NVMe SSD
OS: Windows 10 Pro 64-bit
Software: V-Ray Benchmark 1.0.8

Benchmark Results

Here are the render times, in seconds, for the various processors we tested in V-Ray Benchmark 1.0.8 – with AMD models in red and Intel in blue. The new Core i9 9900K and i7 9700K chips are shown in a darker blue, to make it easier to spot them in the lineup:

V-Ray CPU Benchmark 1.0.8 Intel Core i9 9900K and Core i7 9700K Versus Various Intel Core X and AMD Ryzen / Threadripper Processors

Analysis & Conclusion

As expected, these new 9th Gen Intel Core Processors are not going to win any awards for V-Ray rendering performance. However, they are a solid improvement over the previous-generation Core i7 8700K – and the i9 9900K nearly catches the 10-core i9 7900X despite not having as many cores. The clock speed these chips have really helps, and while it may not be the most important factor for rendering it does let them excel in areas like 3D modeling, animation, and motion graphics. If you split your time between that sort of workload and rendering, you'll have to decide which is more important to you.

What is the Best CPU for V-Ray Rendering?

AMD's Threadripper 2990WX currently offers the best single-socket performance in V-Ray's CPU benchmark. Not only is the 2990WX the fastest single-processor solution, but it is less expensive than many slower options from Intel. It also supports lots of PCI-Express lanes, if you want to stack multiple video cards to use V-Ray's GPU rendering engine as well.

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Tags: 9700K, 9900K, AMD, Chaos, Core, CPU, Group, i7, i9, Intel, Performance, Processor, Rendering, Ryzen, Threadripper, V-Ray

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