CPU Rendering Tests

Rendering tests are a long-time favorite of reviewers and benchmarkers, as the code used by rendering packages is usually highly optimized to squeeze every little bit of performance out. Sometimes rendering programs end up being heavily memory dependent as well - when you have that many threads flying about with a ton of data, having low latency memory can be key to everything. Here we take a few of the usual rendering packages under Windows 10, as well as a few new interesting benchmarks.

All of our benchmark results can also be found in our benchmark engine, Bench.

Corona 1.3: link

Corona is a standalone package designed to assist software like 3ds Max and Maya with photorealism via ray tracing. It's simple - shoot rays, get pixels. OK, it's more complicated than that, but the benchmark renders a fixed scene six times and offers results in terms of time and rays per second. The official benchmark tables list user submitted results in terms of time, however I feel rays per second is a better metric (in general, scores where higher is better seem to be easier to explain anyway). Corona likes to pile on the threads, so the results end up being very staggered based on thread count.

Rendering: Corona Photorealism

Corona loves threads.

Blender 2.78: link

For a render that has been around for what seems like ages, Blender is still a highly popular tool. We managed to wrap up a standard workload into the February 5 nightly build of Blender and measure the time it takes to render the first frame of the scene. Being one of the bigger open source tools out there, it means both AMD and Intel work actively to help improve the codebase, for better or for worse on their own/each other's microarchitecture.

Rendering: Blender 2.78

Blender loves threads and memory bandwidth.

LuxMark v3.1: Link

As a synthetic, LuxMark might come across as somewhat arbitrary as a renderer, given that it's mainly used to test GPUs, but it does offer both an OpenCL and a standard C++ mode. In this instance, aside from seeing the comparison in each coding mode for cores and IPC, we also get to see the difference in performance moving from a C++ based code-stack to an OpenCL one with a CPU as the main host.

Rendering: LuxMark CPU C++Rendering: LuxMark CPU OpenCL

Like Blender, LuxMark is all about the thread count. Ray tracing is very nearly a textbook case for easy multi-threaded scaling. Though it's interesting just how close the 10-core Core i9-7900X gets in the CPU (C++) test despite a significant core count disadvantage, likely due to a combination of higher IPC and clockspeeds.

POV-Ray 3.7.1b4: link

Another regular benchmark in most suites, POV-Ray is another ray-tracer but has been around for many years. It just so happens that during the run up to AMD's Ryzen launch, the code base started to get active again with developers making changes to the code and pushing out updates. Our version and benchmarking started just before that was happening, but given time we will see where the POV-Ray code ends up and adjust in due course.

Rendering: POV-Ray 3.7

Similar to LuxMark, POV-Ray also wins on account of threads.

Cinebench R15: link

The latest version of CineBench has also become one of those 'used everywhere' benchmarks, particularly as an indicator of single thread performance. High IPC and high frequency gives performance in ST, whereas having good scaling and many cores is where the MT test wins out.

Rendering: CineBench 15 MultiThreaded

Rendering: CineBench 15 SingleThreaded

Intel recently announced that its new 18-core chip scores 3200 on Cinebench R15. That would be an extra 6.7% performance over the Threadripper 1950X for 2x the cost.

Benchmarking Performance: CPU System Tests Benchmarking Performance: CPU Web Tests
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  • Zoeff - Thursday, August 10, 2017 - link

    Yeeeees! Thanks for the review! I was hoping there'd be an embargo lift at this hour. :D Reply
  • EloiseSheppard - Saturday, August 12, 2017 - link

    I resigned my office-job and now I am getting paid 94 DOLLLAR hourly. How? I work over internet! My old work was making me miserable, so I was forced to try something different, two years after...I can say my life is changed-completely for the better!

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    Reply
  • Zingam - Sunday, August 13, 2017 - link

    The best CPUs for MineSweeper in 2017 in a single article!!!! Reply
  • NikosD - Monday, August 14, 2017 - link

    Anandtech is simply wrong regarding Game mode or "Legacy Compatibility Mode" as you prefer to call it and make jokes about it.

    It seems that you don't know what ALL other reviewers say that Game mode doesn't set SMT off, but it disables one die.

    So, Threadripper doesn't become a 16C/16T CPU after enabling Game mode as you say, but a 8C/16T CPU like ALL other reviewers say.

    Go read Tom's Hardware which says that Game mode executes "bcdedit /set numproc XX" in order to cut 8 cores and shrink the CPU to one die (8C/16T) but because that's a software restriction the memory and PCIe controller of the second die is still alive, giving Quad Channel memory support and full 60+4 PCIe lanes even in Game mode.

    And you thought you are smart and funny regarding your Game mode comments...
    Reply
  • craptasticlemon - Wednesday, September 13, 2017 - link

    Here's the real Threadripper review:
    AMD thrashes Intel i9 in every possible way, smushes it's puny ass into the dirt, and dances on the grave for the coup de gras. It is very entertaining to watch the paid Intel lackeys here try to paper over what is clearly a superior product. Keep up with the gaming scores guys, like anyone is buying this for gaming. I for one am looking forward to those delicious 40% faster render times, for the same price as the Intel space heater.
    Reply
  • Dr. Swag - Thursday, August 10, 2017 - link

    In paragraph two you say Ryzen 3 has double the threads of i3, I think you mean to say double the cores :) Reply
  • IanHagen - Thursday, August 10, 2017 - link

    Not trying to nitpick or imply anything but... There is a logical reason for Threadripper getting five pages of gaming performance review and Skylake-X not even appearing on the charts more than a month after it was reviewed? Reply
  • Ian Cutress - Thursday, August 10, 2017 - link

    Bottom of page one. Reply
  • IanHagen - Thursday, August 10, 2017 - link

    With all due respect Mr. Cutress, "circumstances beyond our control" and "odd BIOS/firmware gaming results" didn't prevent anyone from bashing Ryzen for its gaming performance on its debut. Reply
  • Ian Cutress - Thursday, August 10, 2017 - link

    We didn't post gaming performance for Ryzen at launch either, for similar reasons. Reply

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