Render time is exactly the same between GTX 1070 & RTX 2080?

CJacobsSA wrote on 3/22/2019, 4:58 AM

Hi, I am a little confused. I recently totally overhauled my PC to future proof it for the next few generations of computer technology, and I expected that in the process of doing this my render times in Vegas would improve, even if just by a bit. Diminishing returns are real and they're hitting the GPU/CPU market hard these days, with incremental upgrades becoming more and more common, so I didn't anticipate anything mindblowing.

The last part I replaced ended up being the graphics card; However, I seem to be getting absolutely no change in performance at all after installing it, and that just doesn't seem right to me. I went from an Nvidia GTX 1070 to an RTX 2080... and my performance in NVENC rendering is exactly the same, almost to the minute. A half-hour 4k video at 40Mbps took 1.5h to render with both GPUs. I used the exact same settings for both. Am I doing something wrong? Vegas is only using 20-40% of the GPU at any given time. I can't tell if this is the expected result.

Comments

eikira wrote on 3/22/2019, 5:17 AM

Hard to say. First of all, are you maybe still using Windows7? As an example, i have dual boot and on Windows7 its just that overall either Magix, Nvidia or Microsoft is blocking my System to be used properly. When i use Windows10 its a whole different story and its running very smoothly.

I am using now since 3 weeks an RTX 2070 and i would say the NVENC in the RTX is way faster AND the picture quality is better. And just 2 Days ago Nvidia Released new specialized Creative Drivers. And before i had for an 14 minute FHD Video about Realtime performance, yesterday i tried again and it was finished in 12 Minutes with the new Drivers, i was amazed.

Since you have a 4K video (4x informations/data in the picture than FHD) 90 Minutes for an 30 Minutes Video does not sound that bad to me. But if it is the exact same time for rendering like before with an GTX1070, yes it does not sound quiet right. I wonder if the NVENC just cant handle more, no matter how fast the RAM and the GPU itself is. Hard to say.

fr0sty wrote on 3/22/2019, 7:57 PM

Keep in mind, many of the upgrades added to the RTX cards focus mainly on games, namely real time ray tracing in games.

Systems:

Desktop

AMD Ryzen 7 1800x 8 core 16 thread at stock speed

64GB 3000mhz DDR4

Geforce RTX 3090

Windows 10

Laptop:

ASUS Zenbook Pro Duo 32GB (9980HK CPU, RTX 2060 GPU, dual 4K touch screens, main one OLED HDR)

CJacobsSA wrote on 3/22/2019, 8:26 PM

I'm on Windows 10 64-bit. Thank you for the heads up on the Creator Ready Drivers, eikira, I had no idea they released those (Thanks for the heads up Nvidia... 😔). I installed those in place of the normal Game Ready Drivers due to what fr0sty suggests, and the render time did improve somewhat- from 1h 30m to about 1h 10-15m. Not the biggest improvement but it's more along the line of what I expected. If that still sounds off, anyone else is free to chime in on more things I can try.

Richvideo wrote on 3/22/2019, 9:19 PM

Hi, I am a little confused. I recently totally overhauled my PC to future proof it for the next few generations of computer technology, and I expected that in the process of doing this my render times in Vegas would improve, even if just by a bit. Diminishing returns are real and they're hitting the GPU/CPU market hard these days, with incremental upgrades becoming more and more common, so I didn't anticipate anything mindblowing.

The last part I replaced ended up being the graphics card; However, I seem to be getting absolutely no change in performance at all after installing it, and that just doesn't seem right to me. I went from an Nvidia GTX 1070 to an RTX 2080... and my performance in NVENC rendering is exactly the same, almost to the minute. A half-hour 4k video at 40Mbps took 1.5h to render with both GPUs. I used the exact same settings for both. Am I doing something wrong? Vegas is only using 20-40% of the GPU at any given time. I can't tell if this is the expected result.

Did you upgrade your drives as well, maybe that is the bottleneck? The NVme drives have crazy read write speeds when comparing them to 7200rpm SATA drives or even SSD (SATA)

eikira wrote on 3/22/2019, 11:55 PM

Did you upgrade your drives as well, maybe that is the bottleneck? The NVme drives have crazy read write speeds when comparing them to 7200rpm SATA drives or even SSD (SATA)

There is no way, that this is a bottleneck. Only if the storage is broken in some ways. But even if you encode with 200mbit/s that is only 25MegaByte/s which even any 5400rpm 2,5 inch drive can handle easy. Any decent 2,5 inch drive can handle at least 90MegaByte/s per second.

Since he updatet the drivers, and it did improve about 10% speed, there lies maybe a problem. But i am not so sure if it is really a problem because i dont consider a 30 minute 4K project rendered in 75 minutes that bad.

CJacobsSA wrote on 3/23/2019, 7:50 AM

I'm rendering to an M.2 SSD, it's as fast as a standard consumer can probably achieve. With that said I agree with eikira, I don't think it's going to get better than this considering the size of my test footage.

Kinvermark wrote on 3/23/2019, 9:24 AM

To see a difference between these two video cards you may need to "widen" your search. By which I mean, don't just focus on render speed, but also look at timeline scrubbing (backwards too) with a variety & quantity of effects and footage types. A lot of GPU capability is used at the fx level. Try some renders to media types other than NVENC ones. It might not be totally relevant to your current workflow, but it will help to answer your question "does this new GPU make any difference?"

fr0sty wrote on 3/25/2019, 11:10 AM

My GTX 970 renders 4k in real time or faster in Vegas using NVENC... so I wouldn't consider a 30 min vid rendering in 75 mins to be good unless there were effects applied that slowed things down.

Last changed by fr0sty on 3/25/2019, 5:02 PM, changed a total of 2 times.

Systems:

Desktop

AMD Ryzen 7 1800x 8 core 16 thread at stock speed

64GB 3000mhz DDR4

Geforce RTX 3090

Windows 10

Laptop:

ASUS Zenbook Pro Duo 32GB (9980HK CPU, RTX 2060 GPU, dual 4K touch screens, main one OLED HDR)

fr0sty wrote on 3/25/2019, 5:00 PM

This is my 970 rendering 4k footage from a GH5.

Systems:

Desktop

AMD Ryzen 7 1800x 8 core 16 thread at stock speed

64GB 3000mhz DDR4

Geforce RTX 3090

Windows 10

Laptop:

ASUS Zenbook Pro Duo 32GB (9980HK CPU, RTX 2060 GPU, dual 4K touch screens, main one OLED HDR)

CJacobsSA wrote on 3/26/2019, 4:30 AM

Kinvermark has a good point, the overall performance has increased a fair amount, definitely what I would expect from an upgrade like this. Vegas itself is definitely working faster.

So with that and fr0sty's video in mind, I'm wondering if I'm doing something wrong in general. The video, at least my test video, does not have any major effects or similar on it that would slow it down. However, maybe the reason the performance isn't any better is something I'm doing wrong in the editing/rendering process. Thoughts? Anything you'd like to see/proof to make sure I'm not messing it up on my own?