(Image credit: Gigabyte) A tech enthusiast has combined an Nvidia GeForce RTX 3070 (8GB) with defective memory and an AMD Radeon RX 6900 XT (16GB) with a damaged GPU. The result was a working RTX 3070 with 16GB of VRAM. While the mod by ComputerBase reader AssassinWarlord seems like a great success, especially in VRAM-hungry modern AAA gaming, there are a couple of small wrinkles to be aware of. Go deeper with TH Premium: GPUs Back to the mod details, and AssassinWarlord started by taking the eight BGA memory chips off both donor cards, then reballed the ICs. Desoldering and reballing chips like these isn't for the casual hobbyist, so we'd characterize AssassinWarlord as a high-level tech tweaker. They also 3D printed a bracket for a GDDR6 reballing stencil... Commenting on the hardware aspect of the process, the intrepid modder summed up that it was "actually not that difficult, the whole thing." (machine translation from German).…