- Aug 25, 2001
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I recently put together my fourth Intel G4560 rig, this time with 2x4GB DDR4-2400 Geil RAM, and an Adata 128GB SU800 Ultimate 2.5" SATA SSD, and Windows 10 Home 64-bit 1607. Connected to a 4K UHD TV via HDMI.
When I was running on the iGPU, scrolling at 4K30 was decent. There was no tearing or flagging, though at 30Hz, was not entirely glass-smooth.
When I installed a GTX950 2GB GDDR5 OC card, I was able to bump up the refresh rate of the display output to 60Hz, which was smoother in a way, but now my scrolling in Waterfox 51.0.1 (same browser, same install as with the Intel iGPU), causes flagging / tearing part-way down the screen.
Can a GDDR5 video card not handle glass-smooth scrolling at 4K60, whereas an Intel iGPU connected to DDR4-2400 can? I thought that GDDR5, especially the way that it is configured in a modern dGPU, had higher memory bandwidth?
Or is this strictly a settings problem? Is there a way to set Vsync for the Windows Desktop compositing, in the NVidia control panel somewhere? I looked up "3D Settings", "VSync", and it was set to "3D Application-controlled". I don't know what that means for the Windows Desktop though.
This is really bugging me. How can the iGPU be better than a discrete video card with GDDR5, for basic Windows Desktop scrolling?
Edit: One other thing: Black text on a white background, once I install the GTX950 card, at 4K60, I'm getting red/blue "fringing" on my text. It's really annoying. I tried going through the ClearType settings Wizard, but that didn't help much, for some reason. I don't recall this being an issue with the iGPU.
When I was running on the iGPU, scrolling at 4K30 was decent. There was no tearing or flagging, though at 30Hz, was not entirely glass-smooth.
When I installed a GTX950 2GB GDDR5 OC card, I was able to bump up the refresh rate of the display output to 60Hz, which was smoother in a way, but now my scrolling in Waterfox 51.0.1 (same browser, same install as with the Intel iGPU), causes flagging / tearing part-way down the screen.
Can a GDDR5 video card not handle glass-smooth scrolling at 4K60, whereas an Intel iGPU connected to DDR4-2400 can? I thought that GDDR5, especially the way that it is configured in a modern dGPU, had higher memory bandwidth?
Or is this strictly a settings problem? Is there a way to set Vsync for the Windows Desktop compositing, in the NVidia control panel somewhere? I looked up "3D Settings", "VSync", and it was set to "3D Application-controlled". I don't know what that means for the Windows Desktop though.
This is really bugging me. How can the iGPU be better than a discrete video card with GDDR5, for basic Windows Desktop scrolling?
Edit: One other thing: Black text on a white background, once I install the GTX950 card, at 4K60, I'm getting red/blue "fringing" on my text. It's really annoying. I tried going through the ClearType settings Wizard, but that didn't help much, for some reason. I don't recall this being an issue with the iGPU.
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