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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Thumbnail image of an infographic comparing GDDR6X to previous versions of GDDR memory

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)