The RTX 50 series has reportedly switched its GDDR7 memory chips from Samsung to SK Hynix.
GeForce RTX 5070 Reportedly Gets SK Hynix GDDR7 Memory but Other RTX 50 Series Have Adopted Memory Modules From SK Hynix as…
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https://wccftech.com/nvidia-reportedly-starts-using-sk-hynix-gddr7-memory-chips-for-the-rtx-50-series-gpus/