IAmDarkPhoenix Posted October 19, 2017 Share Posted October 19, 2017 Just like the subject says. I have Radeon Pro software and I have enabled Crossfire but I don't it's active when playing skyrim. I just wanted to know how to enable it.. Also I used the VRAM test and found the amount I can use is 71616. Is this amount only the 1 card or both? Questions, questions, questions... sorry in advanced if this is posted on the wrong forum Link to comment Share on other sites More sharing options...
Deleted3082751User Posted October 20, 2017 Share Posted October 20, 2017 (edited) that number is: 8 GIgabyte More Specifically 8952 Mega Byte (very close to 9 gigabyte which is an odd number for vram) so it depends how much memory you have on a single card. you will need to get framerate monitoring to see if it is working, i recommend Msi Afterburner, for this. as it can tell you hardware usage, temperatures and framerate, in game. also multi gpu setups can cause microstuttering Edited October 20, 2017 by Guest Link to comment Share on other sites More sharing options...
wfandrews Posted October 20, 2017 Share Posted October 20, 2017 The vram test is a sum of not only the video ram on your GPU but also the ram that your system will allocate from your hard drive for video. Frankly although many guides recommend using it to allocate videomemorysizemb in enblocal.ini I have always found it unreliable. Link to comment Share on other sites More sharing options...
IAmDarkPhoenix Posted October 22, 2017 Author Share Posted October 22, 2017 My cards have 6GB of GDDR5 VRAM which should be 12GB of VRAM total. MSI Afterburner framerate: Avg. between 31-60fps; occasional sudden dropsMSI Afterburner framerate (with SDO): Avg. between 15-45fps. Huge spread with sudden drops I'd really like to use SDO and I figured with DX9 being fixed and my amount of VRAM, that's why I'm thinking Crossfire isn't active, even though it says it's on in the Radeon settings. Link to comment Share on other sites More sharing options...
Deleted3082751User Posted October 22, 2017 Share Posted October 22, 2017 muilti gpu vram does not stack, basically having multi gpu just means the workload gets shared equally, between both cards. so the process would be split in half, basically you wont have 12gb available vram, but because the process is now shared, the memory usage will also be split in half. giving the illusion that you now have 12 gb vram, but in reality you just have 2 cards with 6gb ram. now the thing is, you will also need a strong processor. if the processor is weak, it will bottleneck both cards, and cause bad performance. so what processor do you have ? and what is the CPU usage in game. Link to comment Share on other sites More sharing options...
IAmDarkPhoenix Posted October 28, 2017 Author Share Posted October 28, 2017 Oops! I never answered... I have Dual 12-core Intel Xeon CPU E5-2697 v2 @ 2.70GHz CPU usage in game is 11% at most Link to comment Share on other sites More sharing options...
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