Question Nvidia uses 1.4 displayport, is that a dealbreaker?

[UKTone]

https://forums.tomshardware.com/thr...-info-on-both-and-all-their-versions.3800696/ So here hotaru.hino says that G-sync can only be used through displayport. I was already disappointed that Nvidia went with pci-e 4 and displayport 1.4, but if g-sync doesn't work with hdmi 2.1, then wouldn't amd and freesync be the better choice since they have cheaper monitors and use dp 2.1? The only thing i'm concerned about of the 7900xt and 7900 xtx are compatibility issues. Overall what do you guys think?

 

[Eximo]

Depends on the screen I suppose.

DP 1.4a:
2560x1440p 144hz/165hz (10 bit) or 240hz 8bit
3440x1440 144hz (10bit)
4K 120hz (8bit)

If you are after 5120x1440 or 3440x1440 or 4K 240hz, then no, not enough and you will want to go with HDMI 2.1.

Nvidia GPUs do support VRR via HDMI 2.1 with the 30 and 40 series cards.

HDMI 2.1 Technologies Supported By GeForce RTX 30 Series and 40 Series GPUs
Our GeForce RTX 30 Series and 40 Series graphics cards support key HDMI 2.1 technologies, including:

• Fixed Rate Link (FRL): A new signaling technology that’s necessary to achieve higher uncompressed resolutions, such as 8K, and to enable 48Gbps ultra high speed bandwidth speeds
• Display Stream Compression (DSC) 1.2a: A visually lossless compression algorithm that enables higher resolutions, faster refresh rates (e.g. 8K 60Hz), and greater color depths (e.g. 8K HDR 10-bit). DSC also eliminates the color artefacts introduced by older 4:2:2 or 4:2:0 Chroma Subsampling techniques
• Variable Refresh Rate (VRR): VRR eliminates tearing for more fluid and better gameplay. Together with other supported technologies, high-resolution and high-refresh G-SYNC Compatible gaming is now a reality
• SPD Auto Game Mode: This ensures that the display is set up automatically in the optimal mode for gaming, enabling all the relevant features like VRR, HDR and switching to the lowest latency modes. No need to dig into the Display options to enable the options one by one, just plug the TV in and let the GPU switch the display to the correct mode.

The old GPUs and older G-Sync monitors will not work via HDMI though.

 

[JohnBonhamsGhost]

both my RTX 3080 Ti & RX 6700XT use PCIe 4.0.
and both also use DP 1.4a & HDMI 2.1.

so if you are specifically referring to newer RTX 4000 vs RX 7000
you should make that more clear.

what exact issues are you concerned about anyway?
there is no problem running 2160p 10bit HDR @ 120Hz even with PCIe 4.0 & DP 1.4a.
G-Sync/Freesync isn't even that much of an issue unless you're having odd problems with your frames not running smoothly.

 

[hotaru.hino]

PCIe bandwidth is only a concern if the card starts to run out of usable VRAM and data is being swapped between the card and system memory. Otherwise, you have to go down to PCIe 1.0 x16 before even a 4090 starts to lose more than 10% of its performance.

With regards to DisplayPort and HDMI version, it depends on what display you want to get. However, most displays don't even make full use of HDMI 2.1 (the actual high-end features, since HDMI 2.0 got rolled into it for some reason) or DisplayPort 1.4. You only really need to worry about this is if you want a 4K 240Hz display or equivalent in terms of bandwidth.