ARCTIC P12 Pro PST - Powerful Premium Fan, 120 mm PWM Fan with Y-Cable Splitter, 600-3000 RPM, 0 RPM <5% PWM, Fluid Dynamic Bearing, 4-Pin - Black vs Thermaltake Gravity i2 95W Intel LGA 1200/1156/1155/1150/1151 92mm CPU Cooler CLP0556-D, Compatible with Desktop

Performance and Cooling Efficiency

The ARCTIC P12 Pro PST delivers superior cooling performance due to its high static pressure design, which efficiently penetrates dense radiators and narrow mesh structures. Its 120 mm size and optimized fan blade design enhance airflow even under resistance. In contrast, the Thermaltake Gravity i2 relies on a smaller 92 mm fan with a reported air flow of 31.343 CFM, suitable only for low-power CPUs. The ARCTIC model’s ability to operate at speeds up to 3000 RPM via PWM control allows it to adapt dynamically to thermal loads, while the Thermaltake unit lacks such fine-tuned speed regulation. For users seeking robust cooling across varied system configurations, especially those with higher heat output, the ARCTIC P12 Pro PST offers a significantly more capable solution.

Noise Levels and Operational Quietness

The ARCTIC P12 Pro PST is engineered for quiet operation through its Fluid Dynamic Bearing (FDB) and precise manufacturing that minimizes vibrations. It can stop completely when PWM drops below 5%, ensuring silent operation during low-load scenarios. The Thermaltake Gravity i2 operates at a noise level of 21.3 decibels, which is relatively quiet but not as refined in dynamic control. While both units aim for low noise, the ARCTIC’s full PWM shutdown capability provides a quieter experience at idle, whereas the Thermaltake unit maintains a constant baseline noise regardless of load. This makes the ARCTIC P12 Pro PST better suited for environments where silence is prioritized, such as home offices or media rooms.

Speed Control and Fan Management

The ARCTIC P12 Pro PST features advanced PWM control with a wide speed range from 600 to 3000 RPM, enabling precise, real-time adjustments based on temperature demands. Its 4-pin connector supports full integration with motherboard fan controls, allowing for smooth transitions between speeds. The Thermaltake Gravity i2 lacks any mention of PWM or variable speed control, suggesting fixed-speed operation. Without dynamic adjustment, the Thermaltake fan runs at a consistent rate, potentially leading to unnecessary noise during low-load periods. The ARCTIC model’s ability to ramp down to near-zero RPM gives it a clear advantage in energy efficiency and acoustic performance.

Build Quality and Longevity

The ARCTIC P12 Pro PST uses a Fluid Dynamic Bearing (FDB), known for self-lubrication and reduced wear, contributing to longer service life and lower operational noise. Its precision manufacturing includes minimal gaps and automatic balancing, reducing vibration and enhancing durability. The Thermaltake Gravity i2 features a 7-bladed fan designed for low noise, but no bearing type is specified. While it includes a 2-year warranty, the absence of detailed build information raises questions about long-term reliability. The ARCTIC model’s focus on engineering precision and proven bearing technology suggests greater longevity and consistent performance over time.

Compatibility and Installation

The Thermaltake Gravity i2 is explicitly compatible with Intel LGA 1200, 1156, 1155, 1150, and 1151 sockets, making it a versatile option for older and newer Intel platforms. It also emphasizes quick and easy installation, ideal for users seeking a plug-and-play solution. The ARCTIC P12 Pro PST does not list specific socket compatibility, indicating it is likely intended as a case fan rather than a CPU cooler. This means it may not be directly installable on a CPU without additional mounting hardware. For users needing a CPU-specific cooler, the Thermaltake model offers better out-of-the-box compatibility, though it's limited to low-power processors.

Price and Value Comparison

The ARCTIC P12 Pro PST is priced at $9.49, making it about 25% cheaper than the Thermaltake Gravity i2, which costs $12.78. Over the past 90 days, the ARCTIC model has averaged $9.48, showing stable pricing, while the Thermaltake unit has averaged $13.08—nearly $3.60 more. Despite the price difference, the ARCTIC fan offers a broader feature set including PWM control, FDB bearing, and higher static pressure. The Thermaltake unit, while slightly more expensive, is targeted at low-power systems and lacks advanced control features. For users seeking maximum value per dollar spent, the ARCTIC P12 Pro PST delivers significantly more functionality at a lower cost.

Which should you buy?

Choose the ARCTIC P12 Pro PST if you need a high-performance, quiet, and precisely controllable 120 mm fan with excellent static pressure and PWM support—especially for use in cases, radiators, or systems requiring efficient airflow management. At $9.49, it’s about 25% cheaper than the Thermaltake Gravity i2 and offers far superior speed control and build quality. Opt for the Thermaltake Gravity i2 only if you specifically require a compact 92 mm CPU cooler for low-power Intel processors and prioritize ease of installation over performance. However, given the ARCTIC model’s broader capabilities, lower price, and better technical specifications, it is the stronger choice for most users.