Chinese card maker Zephyr is finalizing its Sakura Snow X custom GeForce RTX 4070 Ti SUPER. A new Bilibili post shows the Mini-ITX card is nearly done, having passed a 35℃ chamber test. It uses a single fan and compact heatsink, aiming to deliver full 285 W performance in a small form factor.

Engineers tested two fan speeds (3000 and 3800 RPM) with copper, graphene-coated aluminum, and bare aluminum heatsinks. The pure copper module offered the best cooling, though it raises costs. Zephyr noted the graphene variant's black finish gives a more premium appearance, a key consideration for the SFF market.

A rival publication criticized Zephyr's testing methodology for using different FurMark versions and inconsistent stress test durations. Zephyr is now polling readers on fan speed preference. This card continues the trend of high-performance, custom-cooled GPUs for compact builds, a growing segment for PC enthusiasts.