Thermal Grizzly has updated its cooling solutions with an all-new 44 x 37mm KryoSheet optimized for the RTX 5090’s GB202 die. The new size costs $24.96 and comes with the KryoSheet and Kapton tape to protect the PCB and capacitors from electrocution.

KryoSheet is a thermal paste alternative with a thermal pad to cool a CPU or GPU. The product is made out of graphene, a non-liquid material that is competitive with thermal paste in terms of thermal conductivity. Its thermal pad likeness gives KryoSheet immunity to the “pump-out effect” commonly seen in thermal paste. This allows KryoSheet to stay thermally conductive for the lifetime of its cooling product without performance degradation.

Thermal Grizzly states that the pump-out effect is even more pronounced on large dies such as GB202, requiring more thermal paste replacement intervals if the RTX 5090 model isn’t using liquid metal.

The only major downside of graphene is its electrical conductivity, which can pose a threat if not applied correctly. If the KryoSheet touches any part of a CPU or GPU, it is not supposed to; it is highly likely to kill the cooling components altogether. The 44 x 37mm Kryosheet reportedly overlaps GB202, ensuring maximum thermal conductivity, even on the very edges of the die. Kapton tape is required to use KryoSheet to ensure the thermal pad doesn’t contact any surrounding components or the PCB.