AMD Radeon RX 10900 XT Leak: RDNA 5 Specs and Performance

AMD’s rumored Radeon RX 10900 XT could pair 154 Compute Units with 36GB of GDDR7 memory, positioning it as an RDNA 5 flagship aimed at NVIDIA’s next-generation GeForce RTX 6090. The leaked configuration also includes 40MB of L2 cache and a 380W TDP.

Those specifications remain provisional. The Radeon RX 10900 XT name is also uncertain, and the projected performance could change before the GPU arrives. tweaktown.com

Radeon RX 10900 XT Leaked Specifications

The leak centers on a GPU die identified as AT0, with RDNA 5 architecture and a reported TSMC 3nm manufacturing process. Its proposed configuration combines 154 Compute Units with GDDR7 memory running at 36Gbps.

The detailed memory configuration calls for 36GB of GDDR7 across a 384-bit bus, with bandwidth reaching a claimed 1.728TB/s. Together with the proposed Compute Unit count, these figures describe the flagship configuration in the rumored Radeon RX 10000 series.

RDNA 5 Performance Target: GeForce RTX 6090

The performance estimates place the Radeon RX 10900 XT against NVIDIA’s GeForce RTX 6090. That proposed positioning would also put AMD’s flagship above the GeForce RTX 5090.

The distinction is between a performance target and a settled result. The leak suggests AMD is aiming to compete at that level, but the comparison remains an estimate. Calling the card an RTX 6090 rival reflects the rumored ambition; claiming it will outperform that GPU would go beyond the available information.

The Rumored 380W TDP

The proposed power specification is 380W, compared with the RTX 5090’s stated 600W TDP. The leak raises a question about whether that power budget would be sufficient for the performance AMD is reportedly targeting against the RTX 6090.

Both the power figure and the performance projection could change. The rumored configuration should therefore be read as a possible design rather than a finalized specification.

Possible Radeon RX 10000 Series Lineup

The leak also outlines three additional RDNA 5 graphics cards, spanning different memory configurations and performance targets.

These are possible offerings, with the listed comparisons representing estimated targets. The model names and configurations remain subject to change.

RDNA 5 Release Window

The rumored arrival window for RDNA 5 is 2026–2027. That broad timeframe accompanies the provisional specifications and performance estimates, rather than establishing a firm launch date for the Radeon RX 10900 XT.

FAQ

How much memory could the Radeon RX 10900 XT have?

The detailed leaked configuration lists 36GB of GDDR7 memory running at 36Gbps on a 384-bit bus. Claimed memory bandwidth is 1.728TB/s.

Will the Radeon RX 10900 XT beat the RTX 6090?

The leak positions it as a potential RTX 6090 competitor. Its performance remains an estimate, so superiority over NVIDIA’s GPU is not established.

When is AMD RDNA 5 expected to arrive?

The rumored release window is 2026–2027. A specific Radeon RX 10900 XT launch date remains unsettled.