# 5070 and Native External 4k/120hz Support

**URL:** <https://community.frame.work/t/5070-and-native-external-4k-120hz-support/74741>\
**Category:** Framework Laptop 16\
**Tags:** framework-laptop-16-amd-7040, graphics-module-nvidia-5070\
**Created:** [August 31, 2025, 12:17pm UTC](https://community.frame.work/t/5070-and-native-external-4k-120hz-support/74741 "2025-08-31T12:17:24Z")\
**Posts on this page:** 1\
**Showing post:** 6

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**Author:** ![Boe](https://avatars.discourse-cdn.com/v4/letter/b/87869e/32.png) [@Boe](https://community.frame.work/u/Boe)\
**Post date:** [September 1, 2025, 12:32pm UTC](https://community.frame.work/t/5070-and-native-external-4k-120hz-support/74741/6 "2025-09-01T12:32:58Z")

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I appreciate the input, folks. I should have specified that my panels are OLED TVs, so HDMI is the only game in town. I think that’s the biggest bottleneck since the HDMI adapter is (currently) only 2.0b. I was able to find an HDMI to USB C adapter (which wasn’t cheap) that allows me to do 4k/120 HDR at 10-bit, but it still looked a little iffy. Other laptops I have with HDMI 2.1 are smooth sailing at 4k/120/12-bit HDR.

Here’s a previous thread where Kyle gave an incredibly detailed explanation of the shortcomings of the 7700s/port. I’m hoping the 5070 won’t have the same limitations.

> [@External Display 10-bit/HDR Questions](https://community.frame.work/t/external-display-10-bit-hdr-questions/46058/3):
>
> The HDMI Expansion Card, like the vast majority of USB-C to HDMI adapters, only supports up to HDMI 2.0b. HDMI 2.0b has insufficient bandwidth for what you want. In fact even at 4k 120 Hz 8 bit it is using aggressive compression to condense the data into the limited bandwidth (it is likely using 4:2:0 subsampling, which essentially means the computer is sending a full resolution black and white image and a half resolution color image that the display recombines to produce something between in …

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_[View the full topic](https://community.frame.work/t/5070-and-native-external-4k-120hz-support/74741)._
