The NVIDIA RTX 3090 Ti is the objective winner of this comparison, securing a lead in eight out of fifteen measured specifications. Its most significant advantage over the NVIDIA RTX 4070 is its VRAM capacity, which is 100% better. This substantial memory buffer provides a clear technical edge for the former, while the latter holds its own advantage in media processing capabilities, specifically offering 100% better AV1 encoding support.

Users who prioritize raw memory capacity for demanding workloads should choose the NVIDIA RTX 3090 Ti. Its superior VRAM makes it the logical selection for tasks requiring extensive data storage on the card. Conversely, the NVIDIA RTX 4070 is the better option for creators or streamers who rely on efficient video processing, as its AV1 encoding capability provides a distinct functional benefit for modern media workflows.