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My new GTX 1070 renders faster than my old GTX 970, but just by a small margin (what's wrong?)

l_riefkohl_ferrer_1923365ed0l_riefkohl_ferrer_1923365ed0 Posts: 166
edited November 2016 in Technical Help (nuts n bolts)

My old card is a EVGA GTX 970 and I intend to replace it with two Gigabyte GTX 1070's. I just bought my first GTX 1070, but when I compare the rendering time, it beats the GTX 970 by just a small margin. My test scene took 4:42 to render with my GTX 970 vs 3:48 with the GTX 1070. This improvement is too small to justify the $430 that I paid for the GTX 1070. What am I doing wrong? Is there any settings that I need to set when I'm using my two cards? Thanks in advance!

Post edited by l_riefkohl_ferrer_1923365ed0 on

Comments

  • fastbike1fastbike1 Posts: 4,077

    What exactly did you expect? The 1070 renders 22% faster but only has about 15% more cores than the 970. I'd say you were getting a reasonable performance increase. A straight render speed comparison is probably not the complete picture since the 1070 will continue rendering some scenes where the 970 has defaulted to CPU.

  • mjc1016mjc1016 Posts: 15,001

    Plus you also need to remember this is still a non-optimized beta...

  • l_riefkohl_ferrer_1923365ed0l_riefkohl_ferrer_1923365ed0 Posts: 166
    edited November 2016

    To be honest I was expecting about a 40% performance increase. I've seen Youtube game benchmarks in which the GTX 1070 is about 40% to 55% faster than the GTX 970 and I was expecting that performance increse to translate into faster rendering times. Anyway, I had a performance decrease while I was still using my GTX 970, but never found the cause. I was hoping to solve that by installing a fresh copy of Windows 10. This installation is old and I have lost performance in the past due to old OS installation. I hope the fresh install fixes the performance issue. It can also be what mjc1016 said, both Daz Studio and nVidia drivers are not optimized yet. We will have to wait to see. I'll do the fresh install and post the results later. Thanks both for your answers!

    Post edited by l_riefkohl_ferrer_1923365ed0 on
  • mjc1016mjc1016 Posts: 15,001

    It's likely the drop was due to drivers.  Several of the last few updates have been all over the place, performance-wise. 

    As to the larger boost in games...the current driver set IS pretty much 'game optimized'. 

    The Studio beta, itself, is far from optimized, so it will not have the best performance possible.

  • l_riefkohl_ferrer_1923365ed0l_riefkohl_ferrer_1923365ed0 Posts: 166

    I just finished installing a clean copy of Windows and performance had a nice improvement. My Fire Strike score went up from 8411 to 14873. Also both cards rendered my previous test faster. 3:17 for the 970 and 2:24 for the 1070. That's about 30% improvement gain for clean install vs old install and about 26.82% improvement for the 1070 over the 970 in a clean install Windows 10 environment. Now I'm happier with my insvestment, but will be more happier when I add my second GTX 1070 in January or February and also when both Daz Studio and nVidia drivers are both optimized. Let's hope that our friends from both companies don't encounter major problems while working in such optimizations. Thanks for reading me!

  • nicsttnicstt Posts: 11,715

    Actually; some of the performance gain you're seeing is not due to 10 series cards; I'm seeing about a 5% improvement on my 980ti, just by using the new beta.
    .

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