Micron 24 Gbps GDDR6X memory for GeForce RTX 40 series is now in production

Micron 24Gbps GDDR6X in production

The memory manufacturer Micron, who had developed GDDR6X technology in collaboration with NVIDIA for RTX 30, is now preparing for the next-gen GPU series by offering even faster speeds.

Company website has now been updated with new information on the new GDDR6X modules. It appears that 16Gb (2GB) modules featuring 24 Gbps speed are now in production, just 2 months ahead of the rumored launch of NVIDIA RTX 40 series.

NVIDIA is said to use both 21 and 24 Gbps speeds for its high-end series. Should rumors be correct, NVIDIA will be using 21 Gbps GDDR6X modules for three of the high-end SKUs: RTX 4090, 4080 and 4070. At the same time, rumors on supposed flagship model, either a professional workstation GPU or a true TITAN successor, might be getting 24 Gbps modules.

Micron GDDR6X memory catalog, Source: Micron

Micron probably wouldn’t be producing such chips for no reason, but just because such memory exists, it does not guarantee that full speed will be used by next-gen GPUs. For RTX 30 series, NVIDIA only used 21 Gbps speed for its RTX 3090 Ti model released in March this year, while the original 2020 launch only went as high as 19.5 Gbps.

RUMORED NVIDIA GeForce RTX 40 Series Specs
VideoCardz.comTITAN ADA (?)GeForce RTX 4090 GeForce RTX 4080 GeForce RTX 4070
ArchitectureAda (TSMC N4)Ada (TSMC N4)Ada (TSMC N4)Ada (TSMC N4)
GPUAD102-450AD102-300AD103-300AD104-400 (?)
Board NumberPG137-SKU0PG139-SKU330PG136/139-SKU360PG141-SKU331
SMs
142
128
76
60
CUDA Cores
18176
16384
9728
7680
Base Clock TBC
2235 MHz
TBC TBC
Boost Clock TBC
2520 MHz
TBC TBC
Memory
48 GB G6X
24 GB G6X
16 GB G6X
12GB G6X
Memory Bus
384-bit
384-bit
256-bit
192-bit
Memory Speed
24 Gbps
21 Gbps
21 Gbps
21 Gbps
Bandwidth
1152 GB/s
1008 GB/s
676 GB/s
504 GB/s
TGP
~800W
~450W
~420W
~300W
3DMark TimeSpy Extreme
~24,000
~19,000
~15,000
~11,000
Launch Date TBC October 2022 TBC TBC

Source: Micron via @harukaze5719