Intel 65W TDP CPU Coolers round-up: Noctua NH-L9i, Xigmatek Praeton LD963 and Apache III CD903 (and Intel stock cooler)

  1. Introduction
  2. Packaging and Specifications- Noctua NH-L9i
  3. Packaging and Specifications- Xigmatek Praeton LD963
  4. Packaging and Specifications- Xigmatek Apache III CD903
  5. Impressions: Motherboard Clearance
  6. Impressions: Mounting Mechanism
  7. Test Setup & Methodology
  8. Test Result
  9. Conclusion

Low profile coolers started off as an alternate to stock coolers, but due to recent developments in the CPU cooling market and with the rise the smaller and more energy efficient units. There are 4 low profile CPU coolers, including Intel’s stock cooler made by Foxconn that will be reviewed and compared with each other using 65W TDP Intel G645 processor clocked at 2.90 GHz.

The coolers that will be evaluated in this round are as follows:

· Noctua NH-L9i

· Xigmatek Praeton LD963

· Xigmatek Apache III CD903


  1. apache’s mounting is shit. most people will push the thermal towards the side of the level during the mount. apache makes a lot more sense…xigmatek makes a lot of coolers with direct heatpipes so that’s cool…..

    what kind of bearing do the xigmatek fans use?

      1. i wouldn’t be suprised if its sleeve bearing. But couldn’t be sure since apache’s mounting is fixed and as far as praeton goes, the rear is completely sealed.

  2. Thank you for writing this article! I’ve been looking for a low-pro heatsink to fit inside of an ultra-mini gaming PC and this is just what I needed to help make my decision. Noctua it is! Thanks again:)

    1. Thanks for reading! :) I am sure you will not be dissapointed. Just make sure the processor you’re pairing this cooler with is under the recommended TDP pocket.

  3. i needed a replacement cooler for my alienware x51. noctua l9 is brilliant! thanks for recommendation!

    who in their right mind will buy that xigmatek cooler with awkward installation method?

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