75W Single-Slot RTX 3060 Shows Severely Crippled Performance and High Thermals

New 75W RTX 3060 Variant Emerges

A Chinese manufacturer has introduced a 75W version of the Nvidia GeForce RTX 3060 (12GB). This variant is designed as a single-slot, low-profile card that draws all its power directly from the PCIe slot, eliminating the need for external 6-pin or 8-pin power connectors. The standard RTX 3060 has a 170W TDP.

Design and Cooling Deficiencies

The card features a blower-style cooler, similar in size to a modern smartphone, with 1x HDMI and 1x DisplayPort connectivity. A teardown revealed significant design compromises, including the absence of a fin stack, a PCB without a backplate, and a thin metal shroud for heat dissipation. Memory chips lack thermal pads or paste, with the shroud directly contacting the GPU core. The cooling system relies on a single fan with no dedicated intake or positive airflow.

Performance and Thermal Testing Results

Testing showed the 75W RTX 3060 barely reached 900 MHz boost clocks, significantly below its rated 1,770 MHz. In the 3DMark Time Spy benchmark, it scored 4,821 points, which is less than half the score of a standard RTX 3060 (over 9,000 points). This performance is also lower than older budget GPUs like the AMD RX 580 and Nvidia GTX 1060.

During the Time Spy run, the GPU hotspot temperature exceeded 90 degrees Celsius, indicating severe thermal throttling. The inadequate cooling system struggled to manage even the reduced 75W power consumption, further impacting performance.

Implications of the Design

The severely limited power budget, combined with the insufficient cooling solution, results in a GPU that underperforms significantly compared to its standard counterpart. While the compact, single-slot design might appeal to specific niche builds, the compromises in performance and thermal management make it an impractical option for most users seeking RTX 3060 capabilities.