Noctua NH-L9i-17xx vs upHere H45K6 Low Profile CPU Cooler 45mm Height - 6 Heat Pipes
Updated August 2026 — The Noctua NH-L9i-17xx offers superior noise performance and warranty, while the upHere H45K6 provides excellent compatibility and value. Overall, Noctua is the better choice.
The Noctua NH-L9i-17xx offers superior noise performance and warranty, while the upHere H45K6 provides excellent compatibility and value. Overall, Noctua is the better choice.
Why Noctua NH-L9i-17xx is better
Noise Performance
Noctua is known for whisper-quiet operation.
Warranty
Noctua offers a 6-year warranty.
Cooling Efficiency
Noctua's fan is renowned for its performance.
Why upHere H45K6 Low Profile CPU Cooler 45mm Height - 6 Heat Pipes is better
Price
upHere is more affordable.
Compatibility
upHere supports more socket types.
Installation Speed
upHere allows tool-free installation in under 5 minutes.
Overall score
Specifications
| Spec | Noctua NH-L9i-17xx | upHere H45K6 Low Profile CPU Cooler 45mm Height - 6 Heat Pipes |
|---|---|---|
| Price | C$59.95 | C$49.99 |
| TDP | N/A | 150W |
| Fan RPM | N/A | 800-2800 |
| Noise Level | ≤25 dB(A) | ≤27 dB(A) |
| Warranty | 6 years | N/A |
Dimension comparison
Introduction to Low Profile CPU Coolers
Low-profile CPU coolers are essential for compact builds, particularly in Mini ITX cases, where space is at a premium. In this comparison, we pit the Noctua NH-L9i-17xx against the upHere H45K6 Low Profile CPU Cooler. Both products promise efficient cooling solutions while maintaining a small footprint, but they do so at different price points and with varying features. The Noctua NH-L9i-17xx is priced at C$59.95, while the upHere H45K6 is slightly more affordable at C$49.99.
Design and Size
The Noctua NH-L9i-17xx boasts a compact height of just 37mm, making it ideal for tight spaces in HTPC and Small Form Factor (SFF) cases. Meanwhile, the upHere H45K6 has a slightly taller profile at 45mm but still fits well in Mini ITX cases. This difference in height can be crucial for users with extremely limited vertical clearance. Both coolers are designed to ensure full RAM and PCIe compatibility, but the Noctua's tailored footprint guarantees compatibility on all ITX, Micro-ATX, and ATX LGA1700 or LGA1851 motherboards.
Cooling Performance
Cooling performance is critical in CPU coolers, and both the Noctua NH-L9i-17xx and the upHere H45K6 deliver solid options. The Noctua features a renowned NF-A9x14 slim 92mm fan, which is known for its low noise levels and efficient cooling capabilities. The upHere H45K6, on the other hand, is equipped with six Φ6mm heat pipes and dense aluminum fins, ensuring a heat dissipation capacity of 150W TDP. This design optimizes thermal transfer, maintaining stable temperatures for mainstream CPUs under sustained workloads.
Noise Levels
Noise levels in cooling solutions can significantly affect user experience, especially in quiet setups. The Noctua NH-L9i-17xx is praised for its whisper-quiet operation at idle, aided by its Low-Noise Adaptor and PWM for automatic speed control. The upHere H45K6 also aims for silent operation, featuring a slim 15mm PWM fan that generates a maximum noise level of ≤27 dB(A). While both coolers promise quiet performance, the Noctua's proven reputation for low noise under load gives it an edge in environments where silence is paramount.
Installation Ease
When it comes to installation, both coolers offer user-friendly features. The Noctua NH-L9i-17xx includes the high-end NT-H1 thermal paste and a SecuFirm2 mounting system, designed for easy installation on Intel LGA1700 and LGA1851 CPUs. The upHere H45K6 emphasizes tool-free installation, boasting a setup time of under five minutes. This quick installation process can be particularly appealing for users looking to build or upgrade their systems swiftly.
Compatibility
Compatibility is a key factor for any CPU cooler, especially for users with specific motherboard setups. The Noctua NH-L9i-17xx is tailored for Intel’s LGA1851 and LGA1700 platforms, ensuring full compatibility across various motherboard sizes. On the flip side, the upHere H45K6 boasts a wider support range, compatible with Intel LGA 1851/1700/115x/1200/2011/2066 and AMD AM5/AM4/AM3 sockets. This universal compatibility makes the upHere a versatile option for users with diverse hardware configurations.
Warranty and Quality
Quality assurance is crucial when selecting a CPU cooler. The Noctua NH-L9i-17xx comes with a 6-year manufacturer’s warranty, reflecting the brand's confidence in its products and their longevity. The upHere H45K6, while it does not specify a warranty period, features a durable design with a 40,000-hour lifespan for its fan. The longer warranty from Noctua may offer peace of mind for buyers looking for long-term reliability.
Which should you buy?
Deciding between the Noctua NH-L9i-17xx and the upHere H45K6 ultimately depends on your specific needs and budget. If you prioritise low noise, proven performance, and a robust warranty, the Noctua NH-L9i-17xx at C$59.95 might be the better choice. However, if you are looking for a more affordable option with versatile compatibility and solid cooling performance, the upHere H45K6 at C$49.99 offers excellent value. Both coolers cater to compact builds effectively, making them worthy contenders in the low-profile CPU cooler market.
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