Micron GDDR7 Memory Official: 32 Gbps Speeds, Over 1.5 TB/s Bandwidth & 30% Improvement In Game Performance Across All Resolutions

Micron has announced its GDDR7 memory solution, offering 32 Gbps die speeds & PAM3 signaling for next-gen GPUs from NVIDIA & AMD.

Micron’s Next-Gen GDDR7 Memory Solution For GPUs Brings A 30% Improvement In Gaming Performance Across All Resolutions

Micron Technology, today announced the sampling of its next-generation GDDR7 graphics memory with the industry’s highest bit density.

Leveraging 1β (1-beta) DRAM technology and innovative architecture, Micron GDDR7 delivers 32 Gb/s high-performance memory in a power-optimized design. With over 1.5 TB/s of system bandwidth, which is up to 60% higher bandwidth than GDDR6, and four independent channels to optimize workloads, GDDR7 memory enables faster response times, smoother gameplay, and reduced processing times.

Micron GDDR7 Memory Official: 32 Gbps Speeds, Over 1.5 TB/s Bandwidth & 30% Improvement In Game Performance Across All Resolutions 2

GDDR7 also provides a greater than 50% power-efficiency improvement compared to GDDR6 to better thermals and lengthen battery life, while the new sleep mode reduces standby power by up to 70%. Advanced reliability, availability, and serviceability (RAS) features on Micron GDDR7 enhance device dependability and data integrity without compromising performance, broadening the spectrum of applications to AI, gaming, and high-performance computing workloads.

Micron GDDR7 Memory Official: 32 Gbps Speeds, Over 1.5 TB/s Bandwidth & 30% Improvement In Game Performance Across All Resolutions 3

Micron GDDR7 memory offers high performance that increases throughput by up to 33% and reduces response time by up to 20% for generative AI workloads such as text-to-image creation.

Moreover, Micron expects that graphics cards built with GDDR7 will provide a greater than 30% improvement in frames per second (FPS) for ray tracing and rasterization over current GDDR6 and GDDR6X trends across 1080p, 1440, and 4K resolutions. The addition of GDDR7 completes Micron’s industry-leading product portfolio for edge AI inference applications on CPU, NPU, and GPU components with DDR, LPDDR, and GDDR memory options. For gaming applications, the next-gen memory enables AI-enhanced gameplay with adaptable landscapes, players, and storylines through performance and frame buffer scaling.

With over five years of successful high-volume manufacturing of GDDR6X, Micron has consistently delivered world-class performance and quality. These same attributes — along with mature technology, design, and test experience — will help accelerate the adoption of GDDR7 and provide full-spectrum support for the product’s manufacturing ramp.

Micron introduced PAM4 signaling on GDDR6X, delivering leadership performance of more than a 20% improvement over GDDR6. Success with PAM4 forms the basis for Micron’s continued GDDR7 portfolio leadership with PAM3. Engineering advancements, such as measuring the industry’s first 40 Gb/s PAM3 performance, pave the path to higher performance on future GDDR7 products.

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GDDR Graphics Memory Evolution:

GRAPHICS MEMORY GDDR7 GDDR6X GDDR6 GDDR5X
Workload Gaming / AI Gaming / AI Gaming / AI Gaming
Platform (Example) GeForce RTX 5090? GeForce RTX 4090 GeForce RTX 2080 Ti GeForce GTX 1080 Ti
Die Capacity (Gb) 16-64 8-32 8-32 8-16
Number of Placements 12? 12 12 12
Gb/s/pin 32-37 19-24 14-16 11.4
GB/s/placement 128-144 76-96 56-64 45
GB/s/system 1536-1728 912-1152 672-768 547
Configuration (Example) 384 IO (12pcs x 32 IO package)? 384 IO (12pcs x 32 IO package) 384 IO (12pcs x 32 IO package) 384 IO (12pcs x 32 IO package)
Frame Buffer of Typical System 24 GB? 24 GB 12GB 12GB
Module Package 266 (BGA) 180 (BGA) 180 (BGA) 190 (BGA)
Average Device Power (pJ/bit) TBD 7.25 7.5 8.0
Typical IO Channel PCB (P2P SM) PCB (P2P SM) PCB (P2P SM) PCB (P2P SM)

Ecosystem partners on the GDDR7 memory solution

“At AMD we are committed to creating the most immersive gaming experiences. Our work with Micron on GDDR7 advances our shared goal,” said Joe Macri, senior vice president and corporate fellow at AMD. “We are excited about Micron’s launch of GDDR7, and we look forward to leveraging this technology to make gaming even more responsive and lifelike.”

“Cadence has a strong history of collaboration with Micron to develop industry-leading memory IP subsystem solutions for GDDR, HBM, DDR, and LPDDR,” said Boyd Phelps, senior vice president and general manager of the Silicon Solutions Group at Cadence. “We are using samples of leading 1β DRAM technology-based memory to test and validate GDDR7 PHY IP operating at speeds up to 36 Gb/s.”

GDDR7 memory will be available directly from Micron and through select global channel distributors and resellers in the second half of the calendar year 2024.

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