Samsung, which recently announced GDDR6W graphics memory, has shared some details about the next generation of GDDR7 memory. According to the assurances of the South Korean giant, its GDDR7 technology will be 25% more energy efficient than the GDDR6 standard.
Samsung specifies that the new GDDR7 memory uses PAM3 pulse amplitude modulation, providing 25% higher efficiency than the NRZ (Non-Return to Zero) encoding currently used in the GDDR6 standard. It is also noted that GDDR7 memory will support up to 36 Gb/s bandwidth, which is 2 times higher than the current 18 Gb/s chips used in most Radeon RX 6000 graphics cards. The upcoming Radeon 7000 series is equipped with GDDR6 memory with throughput of 20 Gbps. And NVIDIA GeForce RTX 30/40 devices use memory at speeds up to 23 Gb / s.
Video cards using GDDR7 memory will be able to provide a total memory bandwidth of 1152 GB / s with a 256-bit memory bus and 1728 GB / s with a 384-bit connection. However, Samsung has not yet shared information about plans to introduce this standard and the appearance of corresponding chips in video cards.
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Source: videocardz
