Micron has disclosed an intent to launch GDDR7 memory chips in the initial six months of 2024, asserting the superiority of these chips over the preceding GDDR6 and GDDR6X in terms of performance. 

Nonetheless, the application of GDDR7 implies the necessity for devising new memory controllers and GPUs. Micron's CEO, Sanjay Mehrotra, has indicated the company's objective to launch their advanced G7 product on the 1ß node, which is considered an industry front-runner, in the first half of 2024. GDDR7 SGRAM, the prospective memory generation for GPUs, is expected to meet the high-bandwidth demands in devices such as graphics cards. This upcoming memory variant is projected to present enhanced performance, while circumventing the excessive expenses linked with HBM3 memory. Samsung estimates that GDDR7 could potentially reach data transfer speeds around 36 GT/s, though the exact timeline for this performance metric is unclear.

Cadence revealed earlier this year that GDDR7 memory is set to employ PAM3 signaling, thereby facilitating a higher bandwidth compared to its GDDR6 counterpart, which relies on PAM2 or NRZ encoding. Unlike GDDR6X, which utilizes PAM4 signaling and subsequently leads to escalated power usage, GDDR7 is anticipated to deliver augmented bandwidth sans these disadvantages.

It is critical to recognize that the unveiling of a new memory type does not automatically translate to immediate widespread use. As GDDR7 uses an encoding methodology that is different from GDDR6 and GDDR6X, it necessitates the creation of new memory controllers and GPUs. Tech giants like AMD, Intel, and Nvidia are expected to release their next-gen GPUs around 2024 or early 2025, though the exact timeline is exclusively known to these firms.

Micron to Launch GDDR7 Memory Chips in 2024, Promising Enhanced Performance