High-bandwidth memory

GDDR6X Memory

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GDDR6X: Bringing gaming and AI to life

Micron has created the world’s fastest discrete graphics memory solution: GDDR6X. Launched with NVIDIA on the GeForce® RTX™ 3090 and GeForce® RTX™ 3080 GPUs, GDDR6X takes graphics to new levels of gaming realism and unleashes high-performance AI inference. Learn how Micron is using PAM4 signal techniques in GDDR6X to achieve unprecedented speeds and system bandwidth.

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Feeding the beast: The making of GDDR6X

Micron has been chasing maximum-bandwidth memory to support gaming and professional visualization for a long time. Three Micron experts introduce the innovation and inspiration behind our highest-performance family of memory products, and discuss how Micron achieved staggering speeds with GDDR6X, the future of AI training with HBM2E, and other high-bandwidth products.

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GDDR6X: Memory reimagined

How did Micron create the world’s fastest discrete graphics memory solution? Learn how our GDDR6X applies innovative signal transmission technology to double the I/O data rate.

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GDDR6X infographic

Learn how Micron’s GDDR6X ultra-bandwidth memory uses innovative signaling technology to double the I/O rate for data-hungry workloads.

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Graphics memory comparison


Graphics memory	GDDR5X	GDDR6	GDDR6X
Workload	Graphics	Graphics AI Inference Accelerator	Graphics AI Inference Accelerator
Platform (Example)	TitanX	Titan RTX RX5700 XT	GeForce® RTX™ 3090Ti GeForce® RTX™ 3080Ti
Number of Placements	12	12	12
Gb/s/pin	11.4	14-16	19-24
GB/s/placement	45	56-64	76-96
GB/s/system	547	672-768	912-1152
Configuration (Example)	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	12GB	12GB	24GB
Average Device Power (pJ/bit)	8.0	7.5	7.25
Typical IO Channel	PCB (P2P SM)	PCB (P2P SM)	PCB (P2P SM)

Featured resources

Doubling I/O performance with PAM4: Micron innovates GDDR6X to accelerate graphics memory

Learn more about Micron's fastest discrete memory, and how PAM4 technology helps SGRAM deliver higher bandwidth by enabling multi-level signaling.

Download GDDR6X tech brief

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Micron GDDR6X increases bandwidth and capacity

16Gb memory supports industry-leading speeds up to 24Gb/s, ideal for gamers and content creators.

Read GDDR6X press release

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The demand for ultra-bandwidth solutions

GDDR6X addresses the demand of data-hungry applications like AI, gaming, machine learning, autonomous driving, high-performance computing and VR.

Ultra-bandwidth solutions brief

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Tim Hollis on solving signal integrity challenges in Micron GDDR6X memory

Micron Fellow Tim Hollis talks with us about keeping bits intact at terabyte system speeds.

Read signal integrity blog

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