It appears that Micron has begun formal mass production of its next-generation, 24 Gbps capable GDDR6X memory chips. Micron previously declared that they were getting set to release their brand-new 24 Gbps GDDR6X memory modules for the next graphics cards. When the announcement was made, Micron had just released 16 Gb DRAM modules with speeds up to 21 Gbps for NVIDIA’s GeForce RTX 3090 Ti, which had recently hit the market.
We’ll be looking at 2 GB VRAM capacities and up to 24 GB capabilities on a 384-bit bus interface because Micron will offer even faster pin speeds of 24 Gbps in a 16 Gb density. The GeForce RTX 4090 would have 12 GDDR6X modules, similar to the GeForce RTX 3090 Ti, which had all of its memory modules on the front of the PCB. This would allow for more cooling than products with memory modules on the rear of the PCB, like the RTX 3090. (Non-Ti).
The NVIDIA GeForce RTX 4090, which is rumoured to offer up to 21 Gbps die speeds, isn’t expected to use the full 24 Gbps speeds, but the Micron 24 Gbps GDDR6X memory modules can offer up to 1.152 TB/s of bandwidth, which is an increase of 14% over the 1.008 TB/s offered by current 21 Gbps GDDR6 memory modules.
When it debuts later this year, the NVIDIA GeForce RTX 4090 will be among the first next-generation graphics cards to make use of the newest GDDR6X memory modules. Given that these chips will probably be downclocked to meet the power targets, enthusiasts will have a tonne of room for overclocking.
For its next-generation RDNA 3 series, AMD, on the other hand, is probably going to rely on its business partner, Samsung. A 24 Gbps GDDR6 memory module that Samsung is developing is also anticipated to enter mass production soon.
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