RTX 3070 VRAM Upgrade Delivers Tiny Real-World Gains
An enthusiast attempts to double the RTX 3070’s VRAM by salvaging GDDR6 modules from an RX6900XT, reballing, and tuning power and memory mappings. While synthetic tests show little improvement because most workloads are compute-bound, a few titles benefit from reduced system memory pressure. Overall, the significant hardware risk and effort yield only modest gains, making the upgrade impractical for most users.