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Is overclocking more successful with a lower resolution?

Talk about overclocking displays at a higher refresh rate. This includes homebrew, 165Hz, QNIX, Catleap, Overlord Tempest, SEIKI displays, certain HDTVs, and other overclockable displays.

Is overclocking more successful with a lower resolution?

Postby suri » 04 Sep 2019, 12:12

I don't care if I have to lower my resolution to 800x600, I just want to experience that 200hz on my 144hz monitor ;)
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Re: Is overclocking more successful with a lower resolution?

Postby Chief Blur Buster » 04 Sep 2019, 18:03

It depends.

Sometimes it can succeed. But the success rate is not necessarily higher than native resolution.

You can try all methods, to figure out how a monitor overclocks:
- Simply raising Hz
- Reduced horizontal totals too (transfer bandwidth from HBI to increasing Hz)
- Reduced vertical totals too (transfer bandwidth from VBI to increasing Hz)
- Reduced bit depth (e.g. 6bpc) too (transfer bandwidth from color depth to increasing Hz)
- Reduced resolution too (transfer bandwidth from high resolution to increasing Hz)
- Enabling/disable of instant modes or low-lag modes
- Enabling/disable of HDR modes
- Enabling/disable of VRR modes
- ToastyX CRU versus NVIDIA Control Panel versus AMD Catalyst Control Center
- GPU scaling versus monitor scaling
- Disabling of features that interfere with overclocking
- Out-of-Range defeat hacks (dismiss that firmware popup message & force monitor to try to sync)

Sometimes you need to focus on a different pre-requisite, to figure out how to trick a display into overclocking successfully.

Most of the time, lowering resolution to overclock is not usually successful on modern high-bandwidth connections such as DisplayPort 2.0 and the overhead of a scaler can produce a weak link to overclocking. You do need to use ToastyX CRU instead of NVIDIA Custom Resolution sometimes, to force native resolution from the GPU, rather than GPU scaling.
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