AMD's next-gen UDNA GPUs could have 50% more GPU cores than RDNA 4, Radeon 10090 XT incoming

AMD's next-generation GPU architecture is either going to be called UDNA or RDNA 5, with leaks suggesting the highest-end next-gen GPU from AMD will feature up to 96 CUs on the flagship GPU, a huge 50% increase in GPU cores over the biggest RDNA 4 chip on the market.

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We've been hearing rumbles about AMD's next-generation GPU architecture after RDNA 4, which will either be RDNA 5 in some form, or the introduction of UDNA. The latest rumors on the next-gen Radeon GPU is that AMD is rumored to debut a high-end "multi-chiplet" GPU that could debut with UDNA, but the very latest rumor is from leaker "Kepler_L2" who suggests the next-gen Radeon GPU lineup.

Kepler_L2 explained: "yeah, my guess is the lineup will go from 64CU / 256-bit + 32 CU / 128-bit to 96 CU / 384-bit + 64 CU + 256-bit + 32 CU + 128-bit".

• Navi 5X (flagship) - 96 CUs on a 384-bit memory bus
• Navi 5X (mid-range) - 64 CUs on a 256-bit memory bus
• Navi 5X (low-end) - 32 CUs on a 128-bit memory bus

AMD's next-gen flagship Radeon GPU with 96 Compute Units (CUs) is a monster upgrade over the 64 CUs inside of the flagship RDNA 4 GPU inside of the Radeon RX 9070 XT, and a far wider 384-bit memory bus is another big upgrade over the 256-bit memory bus on the RX 9070 XT. AMD pushed out its new RDNA 4-powered Radeon RX 9000 series GPUs with GDDR6, so we should expect GDDR7 inside the next-gen RDNA 5-powered Radeon RX 10K series.

AMD's next-gen GPU architecture will have a lot of technology learned and shared with next-gen semi-custom SoCs for next-gen consoles, especially Sony's next-gen PlayStation 6 console. We can expect huge upgrades in ray tracing (RT) and artificial intelligence (AI) especially for things like AI-powered upscaling like a next-gen FSR 5 that I'm sure will debut with RDNA 5 or UDNA.

As for whether AMD's next-gen RDNA 5 or UDNA-based Radeon GPU will compete with NVIDIA's next-gen GeForce RTX 6090 or not, that's another story in itself. AMD's current RDNA 4-powered flagship Radeon RX 9070 XT competes with the GeForce RTX 5080, but with 50% more GPU cores and a wider 384-bit memory bus, it should come closer to the flagship GeForce RTX series GPU than ever before, hopefully.

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NVIDIA will have its GeForce RTX 50 SUPER series out in 2026, so AMD will be competing with those cards if the next-gen Radeon GPUs come out in 2026. However, if they come out in late 2026 or 2027, then AMD will be competing with NVIDIA's next-gen GPUs, and we all know they're going to be more powerful than ever before.

We should expect AMD's next-gen RDNA 5 / UDNA GPUs to enter mass production in Q2 2026, so we should expect more news on them in the next year ahead.