This ASUS graphics card is one option for you if you're upgrading your computer. It has an 8 GB GDDR6 memory.
Overclockers
Asus GeForce RTX 3060Ti Dual Mini V2 OC LHR 8GB GDDR6 PCI-Express Graphics Card
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ASUS NVIDIA Dual GeForce RTX 3060 Ti MINI V2 OC Edition LHR 8GB Ampere