Almost exactly a year ago Samsung introduced GDDR6, which was capable of transmitting 24Gbps per pin. Now the company has completed the design of the next gen in graphics RAM dubbed GDD7. This one goes up to 32Gbps per pin for a total of 1.5 Terabytes per second, 40% faster than the 1.1 Terabytes per second that GDDR6 could achieve. The increase in speed is due to the adoption of 3-level Pulse Amplitude Modulation (PAM3). PAM3 is also used in USB4 and Thunderbolt 5, for example. GDDR6X used in cards like the Nvidia RTX 3090 and 4090 uses the related PAM4 standard. Anyway, besides...
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