Undervolted AMD Radeon RX 7800 XT with 200W power limit matches average performance of GeForce RTX 4070

Published: Sep 21st 2023, 07:34 GMT   Comments

Gigabyte RX 7800 XT Gaming OC uses 40% more power at stock while only being 9% faster than 200W undervolted card

Gigabyte RX 7800 XT Gaming OC, Source: Techtesters

The Radeon RX 7800 XT earned favorable reviews and gamer acclaim following its release two weeks ago. It poses a competitive challenge to the GeForce RTX 4070 graphics card while maintaining a lower price point. However, there was one aspect where the RTX 4070 held an advantage, and it wasn’t due to DLSS 3.5 support. RTX GPUs generally demonstrate lower power requirement compared to the RDNA3 desktop GPUs, and the RX 7800 XT was no exception.

Radeon RX 7800 XT Gaming OC undervolted, Source: Techtesters

In contrast to the RTX 4070, which boasts a TDP of 200W and registers a typical power consumption of 196W during gameplay, the RX 7800 XT demanded a more substantial 252W to 286W of power, depending on whether we’re considering the reference or custom GPU models. This 60 to 90W power gap may still sway gamers towards choosing the RTX 4070 over AMD’s latest offering at $499.

Techtesters, a media channel based in the Netherlands known for its high power costs, took on the challenge of assessing the extent to which the RX 7800 XT’s power efficiency could be enhanced through undervolting and power limiting. They settled on a 90% power limit for the Gigabyte RX 7800 XT Gaming GPU.

Radeon RX 7800 XT Gaming OC undervolted, Source: Techtesters

The comparison involved testing the card in a variety of titles that exhibited a wide range of performance characteristics. Overall, the Gigabyte RX 7800 XT Gaming OC, with stock settings, consumes 40% more power while delivering only a 9% increase in performance compared to 200W undervolted card, but it is worth adding that the AMD reference card needs 24% more power at stock. As mentioned, a 9% performance boost should not be underestimated, but the substantial reduction in power consumption also resulted in quieter GPU operation and lower temperatures.

More importantly, even with a 200W configuration, the card managed to hold its own against the RTX 4070, which consumed roughly the same amount of power at stock settings. This essentially means that there’s virtually no difference between these GPUs once the RX 7800 XT is undervolted. Naturally, the choice between the two cards will heavily depend on the specific games chosen to play, as not everyone is comfortable with undervolting or altering GPU settings.

Radeon RX 7800 XT Gaming OC undervolted, Source: Techtesters

AMD has no plans to release an RX 7800 card with lower power settings, but they do offer an RX 7700 XT card with nearly as high a TBP out of the box (245W). Gamers anticipating RDNA3 GPUs with a TBP of approximately 200W may need to wait for the Radeon RX 7600 XT card, which has already made its debut in the initial leaks.


[Techtesters] RX 7800 XT... But Power Efficient - Testing Games at 200 Watts (54,690 views)

Comment Policy
  1. Comments must be written in English and should not exceed 1000 characters.
  2. Comments deemed to be spam or solely promotional in nature will be deleted. Including a link to relevant content is permitted, but comments should be relevant to the post topic. Discussions about politics are not allowed on this website.
  3. Comments and usernames containing language or concepts that could be deemed offensive will be deleted.
  4. Comments complaining about the post subject or its source will be removed.
  5. A failure to comply with these rules will result in a warning and, in extreme cases, a ban. In addition, please note that comments that attack or harass an individual directly will result in a ban without warning.
  6. VideoCardz has never been sponsored by AMD, Intel, or NVIDIA. Users claiming otherwise will be banned.
  7. VideoCardz Moderating Team reserves the right to edit or delete any comments submitted to the site without notice.
  8. If you have any questions about the commenting policy, please let us know through the Contact Page.
Hide Comment Policy