this post was submitted on 12 Jul 2025
70 points (100.0% liked)

PC Gaming

11790 readers
523 users here now

For PC gaming news and discussion. PCGamingWiki

Rules:

  1. Be Respectful.
  2. No Spam or Porn.
  3. No Advertising.
  4. No Memes.
  5. No Tech Support.
  6. No questions about buying/building computers.
  7. No game suggestions, friend requests, surveys, or begging.
  8. No Let's Plays, streams, highlight reels/montages, random videos or shorts.
  9. No off-topic posts/comments, within reason.
  10. Use the original source, no clickbait titles, no duplicates. (Submissions should be from the original source if possible, unless from paywalled or non-english sources. If the title is clickbait or lacks context you may lightly edit the title.)

founded 2 years ago
MODERATORS
 
you are viewing a single comment's thread
view the rest of the comments
[–] [email protected] 4 points 1 week ago (2 children)

TDPs the same? Bah! I’m looking at a 7900 build and this would be two generations that cannot match its energy efficiency.

[–] [email protected] 8 points 1 week ago

Not sure why you think that. It really depends on the performance of the new parts. If they're (pulling numbers completely out of thin air) 25% faster at the same TDP, then that's definitely more efficient. At that point it you can just use PBO to tune performance down to whichever power envelope fits your use case

[–] [email protected] 1 points 1 week ago (1 children)

7900x is considerably less power efficient than the 9900x though, performing slower and drawing more power

[–] [email protected] 1 points 1 week ago (1 children)

Look at the idle power draw. The 9900 is higher and the performance is not that much better.

[–] [email protected] 3 points 1 week ago (1 children)

https://www.techpowerup.com/review/amd-ryzen-9-9900x/23.html

Lower power use by the 9900x across the board, idle included. If your focus is lower idle use though, either are clearly not good choices

[–] [email protected] 5 points 1 week ago

Hmm you’re right. It looks like it CAN draw more power but under the same load would draw less. How did I make that mistake? Thanks for correcting me.