Nvidia RTX 3090 vs RTX A6000 VEAI benchmark (UPDATED)

Hi guys. Finally, I was be able to get on hand an RTX A6000 to show you guys a quick benchmark on VEAI 2.2.0 here. This benchmark might be changed if the developers change something.

Setup:
5950X + RTX 3090/RTX A6000
64GB DDR4 3600Mhz CL18

*1080p => 2160p (200%) (TIF)

  • Single RTX 3090:
    Artemis models => 0.32
    Dione models => 0.31 - 0.36 up and down
    Gaia models => 0.55
    Theia models => 0.48

  • Dual RTX 3090:
    Artemis models => 0.32
    Dione models => 0.29 - 0.34 up and down
    Gaia models => 0.36 (reduce machine load)
    Theia models => 0.43 (reduce machine load)

  • Single RTX A6000: (after reinstall VEAI 2.2.0 and drivers)
    Artemis models => 0.34
    Dione models => 0.31 - 0.36 up and down
    Gaia models=> 0.55
    Theia models => 0.48

As you can see, a single RTX 3090 is a winner, and RTX 3090 SLI is only good for Gaia. With 75% performance gain in Gaia models, is it worth your spending x2? Your judge. But based on the price tag, a single RTX 3090 > RTX A6000. I researched that Topaz products are using OpenGL instead of OpenCL that will give consumer Geforce GPUs more raw performance than Quadro GPUs. So, if you want to spend all days with Topaz products, get a Geforce GPU for a cheaper price.
But RTX A6000 is smaller and able to run 24/7 (you know what I mean if you’re working on DVD or 4K Blu-Ray projects). RTX A6000 seems to runs smoothier and faster without thermal throttling like RTX 3090 after 2 hours (10% performance drop). Power consumption reduced by 50-75W with higher performance. Huge deal for NVLink.
However, if your budget doesn’t allow you to get RTX A6000, then stop at RTX 3090 is enough. Unless you really need ECC and other stuff come with it (drivers, design, compatibility…). Then you should not get RTX A6000 at all.

p/s: RTX A6000 has unoptimized and optimized drivers for VEAI, VEAI crashed a lot due to VRAM issue if you use unoptimized one. Just like with Studio Driver on GeForce cards. I had to downgrade to its older stable drivers. It doesn’t crash anymore. This is Nvidia’s driver issue because they only optimize the drivers for Studio Driver only.

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RTX A6000
Advantages over RTX 3090:

  • Lower power consumption: 400W total system (A6000) vs 500W total system (3090) and 700W (3090 SLI). I have to mention that most PSU under 1200W won’t work with RTX 3090 SLI, you need 1200W PSU and above (2021 versions). Same PSUs, but 2021 versions usually fixed to be able to handle RTX 3090 spikes that push the power consumtion to 450-500W. Contact manufacturer for a RMA if needed to replace 2021 models. If you run RTX 3090 SLI, prepare to buy a 1600W Platinum PSU (good luck with that), or your system will shut off any minute.
  • Lower temperature: 75-80°C (3090) vs 70-75°C (A6000)(consistency). I tested with 4 instances amd the temp goes up to 85°C, but the clock speed is very consistent which is pretty good. RTX 3090 with 2 instances will go up 80°C+ instantly with clock speed reduces drastically.
  • I can now run 2-3 instances at the same time with less speed reduced (Artemis). If time is important to you, then don’t run 2 instances. You will end up with the same amount of time for each video.
  • A6000 uses 100% GPU usage without shuttering. Performance is always stay the same for hours. No thermal throttling after 30 min like RTX 3090 (you need to ramp up the fan to avoid this which is loud and annoying). On RTX 3090, the more VRAM you use, the more speed reduced. Therefore, more instances don’t save your time due to thermal throttling. You need watercooling system to cool RTX 3090, RTX 3090 SLI/NVLink.
  • Tensor cores on RTX A6000 performs a bit better than RTX 3090.
  • A6000 runs SLI/NVLink better than RTX 3090 SLI/NVlink. Easier to run multi GPU because of dual slot configuration. RTX 3090 NVlink will need 4 slot spacing between PCIe slots. But good luck with thermal.
  • IMPORTANT: GPU usage is very high (lowest 65% to 100%) on A6000 because most of its components are designed for professional workloads. Some people say why their GPUs are not being used 100% is because Geforce GPUs are not workstation cards, therefore, a Studio Driver is a must to use as much as possible from the card’s resources. Some don’t want to admit that Geforce cards are for gaming only.

Disadvantages over RTX 3090:

  • Expensive, but A6000 runs multiple insances better than RTX 3090.
  • Artemis/Dione/Theia models have more crashes than Gaia models due to VRAM issue in VEAI. Newest Quadro driver sucks, only older stable driver for Production branches works. Just don’t install New Feature driver (just like don’t install Game Ready driver for VEAI, use Studio Driver instead)
  • Turn on “Reduce Machine Load” will instantly crash VEAI.
  • With a bit better hardware, it’s still slower in some applications (maybe, but new drivers help). But unless you run VEAI 24/7 like me, you won’t need A6000. Go with RTX 3090 Studio Driver and you will be fine.
  • Cost twice RTX 3090, or even tripple if you can get as MSRP. RTX 3090 SLI still gives you more raw performance, but VEAI doesn’t scale properly in Artemis/Dione/Theia models. If you use Artemis the most, don’t waste money on SLI or NVLink or multi GPU setup. Only Gaia models scale GPUs properly due to 100% GPU usage.
  • Useless ECC for VEAI, I hope VEAI will have ECC where artifacts can be fixed. (idk if it’s possible, just my own thoughts lol).
  • Slower VRAM, but no performance impact compared to RTX 3090 at stock. But GDDR6 was reported to be a hotter than GDDR6X. Still, no performance impact at all.
  • No overclocking ability. But some people won’t overclock their GPU. With multi GPU setup, you will not want to overclock because of thermal and PSU limit. Stock A6000 should be on pair with OC RTX 3090 sometimes.

UPDATED: v2.2.0 Clean Install did NOT clean install at all.

After reinstall the older drivers (to prevent Artemis VRAM crash) and VEAI v2.2.0, it just runs faster (v2.1.1 speed). Maybe I installed too many versions of VEAI that caused instability issue. But I always choose Clean install which should clean everything right? This time, I uninstalled/removed VEAI completely using Control Panel. Then reinstalled VEAI again. Maybe the speed I lost in VEAI v2.2.0 is because of Clean Install option in VEAI that didn’t really clean install itself? But I switched back and forth between v2.2.0 and v2.1.1, and the speed was significantly different (30% perf lost in v2.2.0). I saw some people had the same issue. But if that’s the case, then RTX 3090 and RTX A6000 should have the same performance.

Why “Reduce machine load” in SLI/NVlink mode? Here’s the bug in VEAI:
In SLI mode, if you don’t use Reduce machine load, you lose 15-20% performance. Weird right? No idea tho.
But VEAI (Gaia and Theia models specifically) runs faster that way. Lower power consumption, lower temp, faster. Works for me!!!
But it scales okay for me. But not the performance that I’m looking for. Saving time is what I need due to a large volume of DVDs and Blu-Rays. But still cheaper than RTX A6000 in many ways.

If money is not your concern, dual RTX A6000 is better than dual RTX 3090.

Very comprehensive and informative experiments, thanks @viktorz3008 !

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You’re so much welcome.

Have you tried testing RTX 3090 x 2 without SLI, but rather using the VEAI All GPUs setting?

Yes. I tested SLI without NVLink bridge.

Thanks for compiling this list @viktorz3008. Regarding the RTX 3090, can a single card run two instances of GAIA upscale to 4K (from say 720p) without significant slowdown? I know this is something that my RTX3080 cannot do with Gaia but can with Artemis. Nice setup btw.

Yes, Gaia models consume around 5.5 to 6GB of VRAM. So you need at least 12GB of VRAM and above (it might crash if you use Youtube or something that needs more VRAM, in this case 3080 Ti). So a single RTX 3090 is able to handle 2 instances just well. But you will end up with double amount of time. That’s why it’s not worth it to run multiple instances with Gaia models. Artemis models are okay to do so as long as you don’t hit 100% CPU usage (480p => 4K is okay, but 1080p => 4K uses 50% CPU usage already). So I can say, multiple instances are not worth it and not worth upgrading if you use Gaia only. For Artemis, each instance needs around 4-8 cores of CPU.

In conclusion, Gaia is very heavy, and depends on GPU the most (20% CPU as well). If you plan to upgrade to RTX 3090 for multiple instances in Gaia, then it’s not worth it.

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Thanks for the reply doesn’t sound like Gaia would benefit from switching to the 3090. As you say it’s not just a limitation in GPU memory, you need GPU processing cores. You saved me a lot of trouble so thank you. Enjoy the RTX A6000!

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