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Guru3D.com » News » Review: Gigabyte GeForce RTX 2080 GAMING OC 8G

Review: Gigabyte GeForce RTX 2080 GAMING OC 8G

by Hilbert Hagedoorn on: 09/20/2018 02:56 PM | source: | 14 comment(s)
Review: Gigabyte GeForce RTX 2080 GAMING OC 8G

Onwards to the next one, join us Gigabyte as released their GeForce RTX series graphics cards as well, in this review we look at their brand new GeForce RTX 2080, and in specific the GAMING OC 8G edition. 

Read the full review here.







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Hilbert Hagedoorn
Don Vito Corleone



Posts: 45505
Joined: 2000-02-22

#5587497 Posted on: 09/21/2018 02:09 PM
Can you please explain us your choice of V-Ray benchmark over let's say Blender GPU benchmark?
V-Ray benchmark is know that it doesn't work on AMD. When you go to their benchmark list, you will not find any Radeons or Vega dedicated graphic cards.Only Nvidia or AMD CPU/APUs or Intel CPUs.
Sounds very fishy to me.

Hi DSC2037,

It is based on user request here in the forums that we added it. One person wants this, the other that. I cannot do it all, so simply picked V-Ray based on an audience request. Also, GPGPU is of limited interest to this reader base in generic ergo I do not want to spend heaps of time on testing it.

I had a discussion yesterday on the software as I was uncertain what card uses what render path in v-ray. As it seems NV cards will use Cuda whenever available, otherwise drops back to OpenCL.

I learned that OpenCL is the standard code path for AMD Radeon cards (which are still lacking at this time for reasons of time). So including any measurements (even bad) actually would be a good thing to include, so that AMD can put more work into that as trust me, when we post it, they will notice it and look into it.

I've been made aware of Blender, but still need to look into it.

jura11
Senior Member



Posts: 2640
Joined: 2015-03-20

#5587987 Posted on: 09/22/2018 11:10 PM
Thanks for the review.

Can you please explain us your choice of V-Ray benchmark over let's say Blender GPU benchmark?
V-Ray benchmark is know that it doesn't work on AMD. When you go to their benchmark list, you will not find any Radeons or Vega dedicated graphic cards.Only Nvidia or AMD CPU/APUs or Intel CPUs.
Sounds very fishy to me.

Blender is open source, and both Nvidia and AMD team are working on it to optimize their products to the best that they can, so it fair ground for comparison.

If you go to http://download.blender.org/institute/benchmark/latest_snapshot.html you can see their latest benchmark results.

Hi there

Not sure if V-RAY benchmark does use OpenCL, I know their render engine RT does use OpenCL and therefore you can use AMD or any GPU which supports OpenCL, don't have at home any AMD GPU which I could test it in V-RAY etc

V-RAY benchmark is great for testing multi core/threaded CPU like is ThreadRipper or Intel counterparts as this CPU can use all available cores/threads etc plus with CPU rendering you are not limited by VRAM and CUDA cores but yours RAM and CPU

V-RAY is still most popular renderer for archviz when it comes to CPU rendering, Corona or AMD ProRender catching up quite quickly in therm of render speeds and quality plus they're cheaper or free

Regarding the Blender, OpenCL is usually slower than Nvidia CUDA plus there are few limitations of use of OpenCL, if its fair ground to compare both AMD vs Nvidia in Blender hard to say there, I use Blender but mostly with Cycles and CUDA and used in past with AMD OpenCL and used Nvidia with OpenCL renderers as well

LuxMark has been mostly used for testing or benchmarking the GPU performance in rendering but now are more and more used CUDA based renderers like is Octane, Maxwell, IRAY, SuperFly etc

Plus Nvidia OpenCL is not the best if you compare GTX1080 vs Vega64 in LuxMark or other OpenCL renderers

Few years back I used only AMD GPUs for OpenCL rendering or works as their performance has been and still is best when it comes to OpenCL, newer Turing generation of GPUs have bit better OpenCL performance but still AMD didn't released any new GPU this year and Vega64 is bit old GPU for comparison with Nvidia RTX range

Hope this helps

Thanks, Jura

jura11
Senior Member



Posts: 2640
Joined: 2015-03-20

#5587991 Posted on: 09/22/2018 11:35 PM
Hi DSC2037,

It is based on user request here in the forums that we added it. One person wants this, the other that. I cannot do it all, so simply picked V-Ray based on an audience request. Also, GPGPU is of limited interest to this reader base in generic ergo I do not want to spend heaps of time on testing it.

I had a discussion yesterday on the software as I was uncertain what card uses what render path in v-ray. As it seems NV cards will use Cuda whenever available, otherwise drops back to OpenCL.

I learned that OpenCL is the standard code path for AMD Radeon cards (which are still lacking at this time for reasons of time). So including any measurements (even bad) actually would be a good thing to include, so that AMD can put more work into that as trust me, when we post it, they will notice it and look into it.

I've been made aware of Blender, but still need to look into it.

Hi @Hilbert Hagedoorn

Corona and V-RAY are standards in archviz rendering and they're more and more used in movies and other stuff, agree with you Guru3D readers have limited "desire" or interest in GPGPU benchmarks, but still good to have included in yours benchmarks as both can be used with CPU and both can utilise all cores/threads of ThreadRipper or Intel counterparts

In theory you can try disable CUDA in Nvidia Control panel and test there if V-RAY benchmark can or would start with OpenCL fallback

Yup, AMD does use OpenCL as there is no CUDA cross compiler which would allow run AMD with CUDA apps, this AMD CUDA cross compiler Otoy promised to bring but looks like they will be not bringing this anytime soon

Regarding the OpenCL performance, you can try for fun LuxMark and GTX1080 vs Vega64 and you will find, Vega64 is bit faster in LuxMark, not sure how fast RTX is fast there, but I would suspect they would lot faster than older Pascal or Maxwell generation

Blender I would include as V-RAY or Corona will and would use all available cores/threads in rendering or benchmark plus you test there like CUDA or OpenCL performance or you can use AMD ProRender which is OpenCL renderer and you don't need to switch anything etc

Blender is more and more used in game development or archviz and general rendering just due its free and offers great features which you can find in 3DS Max or Cinema4D which cost crazy money

Hope this helps

Thanks, Jura

devastator
Senior Member



Posts: 227
Joined: 2018-07-08

#5588089 Posted on: 09/23/2018 11:43 AM
that funny rtx= rushed to xpensive :)

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