I am running two GTX 1070s in SLI, and I am noticed that I am having trouble with rendering with Blender (rendering a single simple object was running incredibly slow), so I ran benchmarking. I had previously used the Unigine Heaven Benchmark 4.0 when I first built my computer, and even though I was running two monitors, I was getting some pretty high scores (FPS: 171.5; Score 4321; Min FPS: 36.2; Max FPS: 300.7). When I was running the test then, I noticed that both the graphics and memory were running more or less top speed (Graphics: 1999 MHz; Memory: 4004 MHz). Now, when I run the same test under the same conditions, the first card still runs at that speed, but the second card has now dropped (Graphics 607 Mhz; Memory: 405 Mhz). The benchmark results are abysmal by comparison (FPS: 24.1; Score 607; Min FPS: 17.6; Max FPS: 35.7). The temperature on the first card goes up to the mid 70s, but the second card stay more or less in the upper 40s (not even enough to kick in the fan). I've seen it a couple times during the benchmark run that the second graphics card gets up to the speed of the other one, but that lasts only for a few seconds before dropping back down. I am not sure what is going on here.
There have been a couple changes since I built the computer. For one, it's approaching two years since I built it. I've also added a USB 3.0 card, a third monitor, and an Oculus Rift, in addition to drivers and BIOS updates (including the latest GeForce driver), software installs, etc. I also had to turn down my RAM speed to 2100 MHz (from 2933 MHz) in order to get the Oculus Rift to work (it was really laggy in tracking and kept jumping around in virtual space until I did that).
Here are the specks on my computer:
MB: Asus Z170-A
RAM: 32 GB (rated at 3200 MHz, running at 2100 MHz)
CPU: Intel i7 6700K running at 4.6 GHz (liquid cooled)
GPU: GTX 1070 x2 in SLI (24.21.13.9836; 4095 MB)
OS: Windows 10 64 bit
Any ideas about what is going on here?
There have been a couple changes since I built the computer. For one, it's approaching two years since I built it. I've also added a USB 3.0 card, a third monitor, and an Oculus Rift, in addition to drivers and BIOS updates (including the latest GeForce driver), software installs, etc. I also had to turn down my RAM speed to 2100 MHz (from 2933 MHz) in order to get the Oculus Rift to work (it was really laggy in tracking and kept jumping around in virtual space until I did that).
Here are the specks on my computer:
MB: Asus Z170-A
RAM: 32 GB (rated at 3200 MHz, running at 2100 MHz)
CPU: Intel i7 6700K running at 4.6 GHz (liquid cooled)
GPU: GTX 1070 x2 in SLI (24.21.13.9836; 4095 MB)
OS: Windows 10 64 bit
Any ideas about what is going on here?