AMD Radeon RX 8000 “RDNA 4” GPUs To Feature Up To 20 Gbps GDDR6 Memory, 256-bit & 192-bit Flavors

AMD's next-generation Radeon RX 8000 "RDNA 4" GPUs are now expected to feature up to 20 Gbps GDDR6 memory modules.

AMD Radeon RX 8000 GPUs Based on RDNA 4 Architecture Now Expected To Get Faster 20 Gbps GDDR6 Memory

The latest information comes from Kepler_L2 who is now stating faster memory clocks for the AMD Radeon RX 8000 GPU family based on the RDNA 4 graphics architecture. A few months back, Kepler stated that the lineup would utilize 18 Gbps GDDR6 memory across the entire stack but it looks like we will be getting faster memory solutions.

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There are three speeds mentioned so we can expect some different configurations. There's no info on which configuration is designed for which GPU since the lineup is expected to include two chips, the Navi 48 "GFX1201" and Navi 44 "GFX1200". The Navi 48 GPU is the highest-end of the two RDNA 4 SKUs and is likely going to retain 256-bit and 192-bit bus interfaces while the Navi 44 chip is going to feature a 128-bit bus interface.

As for the memory specs, the 256-bit models are said to utilize 18 and 20 Gbps modules. 20 Gbps GDDR6 memory isn't new since the current Radeon RX 7000 series also features it and will provide the RDNA 4 GPU with 640 GB/s bandwidth while the 18 Gbps memory will provide 576 GB/s of total bandwidth to the higher-end Radeon RX 8000 parts. There's also one 192-bit model mentioned and this utilizes 19 Gbps GDDR6 memory which should offer 456 GB/s of bandwidth.

In terms of memory capacity, the AMD Radeon RX 8000 "RDNA 4" GPUs should top out at 16 GB as recently seen. The 16 GB models will be configured with a 256-bit bus while the 192-bit bus will be offering 12 GB memory capacities. So we can expect the lineup to be something like the following:

• Radeon RX 8000 (Navi 48): 256-bit / 20 Gbps / 640 GB/s
• Radeon RX 8000 (Navi 48): 256-bit / 18 Gbps / 576 GB/s
• Radeon RX 8000