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be quiet! Pure Rock Pro 3 vs NZXT X63: Comparison
What is the difference between be quiet! Pure Rock Pro 3 and NZXT X63?
On height the spread is 417%, be quiet! Pure Rock Pro 3 155 mm against NZXT X63 30 mm, so NZXT X63 takes it. Add airflow to that, 59.6 CFM on the be quiet! Pure Rock Pro 3 versus 98.17 CFM on the NZXT X63, and the pattern holds. Max speed runs the same way, 2000 RPM on the be quiet! Pure Rock Pro 3 versus 1800 RPM on the NZXT X63, another win for be quiet! Pure Rock Pro 3.
be quiet! Pure Rock Pro 3 vs NZXT X63: which one fits your build
Take the be quiet! Pure Rock Pro 3 for buyers who prioritize a quiet PC above squeezing out maximum thermal headroom. be quiet!'s entire brand identity and engineering focus centers on this exact priority. It also earns its place with anyone gaming or working without headphones where fan noise is genuinely noticeable. The measured noise advantage here is real, not just marketing. Avoid it for buyers chasing the lowest possible temperatures on a demanding CPU. The Thermalright Peerless Assassin 120 SE, covered elsewhere on this site, delivers measurably cooler results at a similar price, at the cost of more noise under load. The NZXT X63 is the one to take for 280mm-radiator cases and NZXT CAM ecosystem builds, though it is not built for cases with 360mm radiator space available and buyers wanting an LCD pump display. Our rating of the NZXT X63 (7.5/10): solid 280mm cooling with NZXT's signature look, best for cases sized for 280mm rather than 360mm radiators.
Frequently asked questions
Do the be quiet! Pure Rock Pro 3 and NZXT X63 differ on noise level?
Yes. Noise Level reads 34.8 dBA on the be quiet! Pure Rock Pro 3 versus 21 dBA on the NZXT X63.
Is the Fan Count the same on the be quiet! Pure Rock Pro 3 and NZXT X63?
It is. Both are listed at 2, so it is not a reason to pick one over the other.
Specs and benchmarks
Brand
- be quiet! Pure Rock Pro 3
- be quiet!
- NZXT X63
- NZXT
Cooler Type
- be quiet! Pure Rock Pro 3
- Air Tower
- NZXT X63
- AIO Liquid
Series
- be quiet! Pure Rock Pro 3
- be quiet! Pure Rock Pro 3
- NZXT X63
- NZXT Kraken X63
Model Number
- be quiet! Pure Rock Pro 3
- BK041
- NZXT X63
- RL-KRX63-01
Height
- be quiet! Pure Rock Pro 3
- 155 mm-417%
- NZXT X63
- 30 mmBest
Socket Compatibility
- be quiet! Pure Rock Pro 3
- AMD AM4/AM5, Intel LGA1851/1700/1200/115X
- NZXT X63
- AMD AM4, Intel LGA1700/1200
Fan Count
- be quiet! Pure Rock Pro 3
- 2
- NZXT X63
- 2
Noise Level
- be quiet! Pure Rock Pro 3
- 34.8 dBA
- NZXT X63
- 21 dBABest
RGB Lighting
- be quiet! Pure Rock Pro 3
- No
- NZXT X63
- Yes
Fan Size
- be quiet! Pure Rock Pro 3
- 120 mm
- NZXT X63
- 140 mm
Max Speed
- be quiet! Pure Rock Pro 3
- 2000 RPMBest
- NZXT X63
- 1800 RPM-10%
Airflow
- be quiet! Pure Rock Pro 3
- 59.6 CFM-39%
- NZXT X63
- 98.17 CFMBest
Lighting
- be quiet! Pure Rock Pro 3
- None
- NZXT X63
- RGB
Which one should you pick?
Choose be quiet! Pure Rock Pro 3 if you want the higher fan count (2 vs 2) and the higher max speed (2000 RPM vs 1800 RPM).
Choose NZXT X63 if you want the lower height (30 mm vs 155 mm), the lower noise level (21 dBA vs 34.8 dBA) and the higher airflow (98.17 CFM vs 59.6 CFM).
Price comparison
| Retailer | be quiet! Pure Rock Pro 3 | NZXT X63 |
|---|---|---|
| Amazon | View on Amazon | View on Amazon |
| Newegg | View on Newegg |
Disclaimer: The price and specification of the given product may differ from the actual product. Please confirm on the retailer's website before buying.
Verdict
NZXT X63
7.5 / 10 Expert Rating
Solid 280mm cooling with NZXT's signature look, best for cases sized for 280mm rather than 360mm radiators.