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Even the 12 Gbps ordinary GDDR6 chip is 55-60% more expensive than the 1GB GDDR5.
This seems to explain to a certain extent the reason why the price of RTX 20 series graphics cards is higher this year. After all, NVIDIA uses 14Gbps high-frequency memory. I wonder if the upcoming RTX 2060 will make an article on the memory to reduce the selling price.
In addition, AMD has not yet launched GDDR6 graphics products, obviously slowing down the trend of price competition at the source of such display.