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be quiet! Pure Rock 2 vs NZXT X63: Comparison
be quiet! Pure Rock 2 vs NZXT X63: the height difference
Start with height, because it is the widest measured gap between them: be quiet! Pure Rock 2 155 mm against NZXT X63 30 mm, 417% in favour of NZXT X63. Add fan count to that, 1 on the be quiet! Pure Rock 2 versus 2 on the NZXT X63, and the pattern holds. NZXT X63 also leads on airflow, 51.4 CFM on the be quiet! Pure Rock 2 versus 98.17 CFM on the NZXT X63. NZXT X63 also leads on max speed, 1500 RPM on the be quiet! Pure Rock 2 versus 1800 RPM on the NZXT X63. Fan size is not the same on both, 120 mm on the be quiet! Pure Rock 2 versus 140 mm on the NZXT X63.
Who each one is for
Buy the be quiet! Pure Rock 2 for budget locked Ryzen 5 / Core i5 builds and noise-sensitive entry-level PCs, though it is not the pick for unlocked or high-TDP CPUs and enthusiasts wanting RGB. The NZXT X63 suits 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 be quiet! Pure Rock 2 (7.4/10): A sensible quiet budget cooler for locked mainstream CPUs, not for chasing overclocks. 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 2 and NZXT X63 differ on noise level?
Yes. Noise Level reads 26.8 dBA on the be quiet! Pure Rock 2 versus 21 dBA on the NZXT X63.
Specs and benchmarks
Brand
- be quiet! Pure Rock 2
- be quiet!
- NZXT X63
- NZXT
Cooler Type
- be quiet! Pure Rock 2
- Air Tower
- NZXT X63
- AIO Liquid
Series
- be quiet! Pure Rock 2
- be quiet! Pure Rock 2
- NZXT X63
- NZXT Kraken X63
Height
- be quiet! Pure Rock 2
- 155 mm-417%
- NZXT X63
- 30 mmBest
Socket Compatibility
- be quiet! Pure Rock 2
- AMD AM4/AM5, Intel LGA1700/1200/115X/2066/2011-3
- NZXT X63
- AMD AM4, Intel LGA1700/1200
Fan Count
- be quiet! Pure Rock 2
- 1-50%
- NZXT X63
- 2Best
Noise Level
- be quiet! Pure Rock 2
- 26.8 dBA
- NZXT X63
- 21 dBABest
RGB Lighting
- be quiet! Pure Rock 2
- No
- NZXT X63
- Yes
Fan Size
- be quiet! Pure Rock 2
- 120 mm
- NZXT X63
- 140 mm
Max Speed
- be quiet! Pure Rock 2
- 1500 RPM-17%
- NZXT X63
- 1800 RPMBest
Airflow
- be quiet! Pure Rock 2
- 51.4 CFM-48%
- NZXT X63
- 98.17 CFMBest
Lighting
- be quiet! Pure Rock 2
- None
- NZXT X63
- RGB
Which one should you pick?
Choose be quiet! Pure Rock 2 if you already have it on hand or find it at a lower price.
Choose NZXT X63 if you want the lower height (30 mm vs 155 mm), the higher fan count (2 vs 1) and the lower noise level (21 dBA vs 26.8 dBA).
Price comparison
| Retailer | be quiet! Pure Rock 2 | NZXT X63 |
|---|---|---|
| Amazon | View on Amazon | View on Amazon |
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
be quiet! Pure Rock 2
7.4 / 10 Expert Rating
A sensible quiet budget cooler for locked mainstream CPUs, not for chasing overclocks.
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.