Samsung has started testing its next-generation graphics memory chipset. Samsung is known to have tested the speed of the memory chipset from the SGRAM GDDR6X.
This chipset is rumored to have a speed that is quite much higher than the GDRR6. The sample they used is the 16Gb model and operates at 20 Gbps and 24 Gbps data transfer rates.
They use memory chipsets K4ZAF325BC-SC20 and K4ZAF325BC-SC2. This code is already listed in the Samsung product catalog, so what they are testing is not a chipset engineering sample.
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Reporting from Tom's Hardware (15/12) that the Samsung GDDR6 SGRAM 16Gb 20 Gbps and 24 Gbps chips will be present in a 180-pin FBGA package. The chip is compatible with currently available graphics cards, which will run with the new software and controllers.
This surprised many because NVIDIA previously said that GDDR6 would not be able to have speeds above 19.5 Gbps. And Samsung can go through with that statement by partnering with Micron to create a new chipset.
The SGRAM chip can provide up to 768 GBps of bandwidth over a 256-bit bus. This is a stark contrast when compared to the AMD Radeon RX 6900 XT which has a bandwidth of 512 GBps.
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However, it is still unknown which GPU chipset can really maximize the potential of this GDDR6X SGRAM. NVIDIA is said to still be using the graphics memory chip they currently use.
Therefore, AMD is expected to use this high-speed GDDR6X SGRAM on GPUs that use the RDNA 3 architecture. Unfortunately, until now there has been no official statement from NVIDIA regarding the presence of this new VRAM chipset.