The Nvidia GTX950 memory bandwidth is 105.6GB/s I wish it offered separate settings for each resolution and frames although I rarely play anything other than 1080p-23.976Hz these days. As I said before in general the lower resolution of the source the more madVR will tax your GPU when it comes to up-scaling, especially when using the advanced algorithms it has on offer. If I make the window quarter size (FHD), it runs perfectly smoothly with all renderers, even with the extra CPU overhead of scaling back from UHD to FHD resolution after using either of the 2 upscaling settings documented here. With anything other than the overlay at this frequency, I'm pretty sure it's an issue of moving so much memory around inside the video card which lets it down in full screen. The thing works, as long as I use the overlay for output. My graphics card is a Nvidia GTX950 - the 900 series supports HDMI 2.0 UHD at 60Hz, this is a base model, but I've got no reason to spend another $100 for the next model up (GTX960). It runs at 12% if I change to NV12 (with compressed colour). My machine is locked at 4GHz and has 12 threads (6 cores) which means even with the best quality output (RGB32) at UHD resolution upscaling, I can get ffdshow to be perfectly smooth with an overlay - even though the CPU runs at 80%. It's just recorded TV, so 720x576 SD, 1280x720 (News24) & 1440x1080 (7Mate, One) doesn't matter which because CPU isn't really the problem. Hi jasoroony, what resolution are the 50i files? The lower the resolution, the more work that has to be done in upscaling but you probably already know this.
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