I've undervolted the cpu by 0,105V, that helps with the UHD620, but it makes no difference with the 920mx. I'm assuming it's because the overall system temperature is lower with the UHD620, which allows the cpu to operate at a higher temperature. When exporting simple clips, like static background with text and raw 1080p/60fps clips, the UHD620 performs better than the 920mx. High cpu freq, low load.Ĥ.2 gpu uhd620, time 32m. Transition and fade between all audio/video.Ĥ.1 gpu 902mx, time 33m. Adding auto color/lightFlares/contrast, sharpen, color balance to the composite clip. 1min raw 1080p/30fps clip, 1min 1080/30 composite clip with text.ģ.1 gpu 920mx, time 10m, a few reapeated 3ghz boosts, mostly 1.6ghzģ.2 gpu uhd620, time 7m, mostly cpu at 3ghz Quite a bit of static images and text, a 15sec sequence of 3 video clips in parallell and 3 clips of text tracking a point.Ģ.1 gpu 920mx, time ~30m, cpu at 1.6 almost all the timeĢ.2 gpu uhd620, time ~1h30m, cpu at about 3.0ghz and 25% load.Ī 2m30s simple edit. The rest of the screen is static text and white background.ġ.1 gpu 920mx, time 11m30secs, cpu 1,6ghz almost the entire time.ġ.2 gpu uhd620, time 7m30s, cpu at 2.8-3.2ghz most of the timeĪ 5m50sec film. Two 1080p/30fps composite clips reduced to 50%, covering 50% of the screen running in parallell. All drivers are latest version.Ī 52sec video. But I'm getting poor performance, and I'm not able to utilize cpu/gpu simultaneously.Ī few examples. The 8250u base speed is 1,6ghz, boost is 3,4ghz. I've undervolted the cpu and increased the max Watt in an attempt to make it run higher clock speeds. I'm running Hitfilm Express 2017 on a Lenovo 320s laptop with 8gb ram, i5-8250u and geforce 920mx.
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