AMD Radeon RX 7900 XT to Feature 20GB GDDR6 Memory, Target the NVIDIA RTX 4090 [Rumor]

AMD will be announcing its next-gen RDNA 3 GPU early next month. Team Red is expected to unveil the Radeon RX 7900 XT during a live stream at 4 PM ET on the 3rd of November. Based on the Navi 31 core, it’ll feature seven chiplets, including a 5nm GCD and six 6nm MCDs. The former will feature 12,288 shaders, while each of the latter will consist of a 64-bit memory controller alongside 32MB of L3 cache (16MB stacked atop 16). This adds up to 192MB of L3 cache and a 384-bit bus.

GPU NameRX 7700 XT (Navi 33)RX 7800 XT (Navi 32)RX 7900 XT (Navi 31)RX 7950 XT (Navi 30?)
Process Node6nm5nm + 6nm5nm + 6nm5nm + 6nm
Die Config6nm x15nm x1, 6nm x45nm x1, 6nm x55nm x1, 6nm x6
Shader Engines2466
Memory Bus128-bit256-bit320-bit?384-bit?
Memory Capacity8GB16GB20GB?24GB?
Infinity Cache64MB128MB192MB192MB?
LaunchQ4 2022Q1 2023Q4 20222023

According to a report from WCCFTech, the Radeon RX 7900 XT will come with 20GB of GDDR6 memory, which means a 320-bit memory bus. Furthermore, it won’t be the fastest RDNA 3 GPU, leveraging a cut-down memory bus and GCD. It will compete with the NVIDIA RTX 4090 and make way for the Radeon RX 7950 XT down the cycle. You can expect 24GB of GDDR6 memory and a 384-bit bus paired with the fully enabled Navi 31 core targeting the RTX 4090 Ti.

From what the outlet understands, the Radeon RX 7000 GPUs will offer strong raster performance, perhaps even beating the RTX 4090 in traditional rendering workloads. However, its ray tracing performance will likely fall short of the high-end Ada Lovelace offerings. What’s essential is that AMD come up with a Radeon alternate to DLSS 3 and fast, or there’s no way it’ll be able to stay relevant in the face of increasing RT adoption.

Areej Syed

Processors, PC gaming, and the past. I have written about computer hardware for over seven years with over 5000 published articles. I started during engineering college and haven't stopped since. On the side, I play RPGs like Baldur's Gate, Dragon Age, Mass Effect, Divinity, and Fallout. Contact:
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