ASRock lists Radeon RX 9050 Challenger 4GB, a step down from the already cut-down 8GB card

ASRock's specification page confirms a 4GB Radeon RX 9050 Challenger, halving the memory capacity of the 8GB variant ASRock announced for Asia-Pacific and Latin American markets. Both use the Navi 44 die and feature 16 compute units (1,024 stream processors), half the shader count of the RX 9060 XT, which uses the same die.

The 4GB card halves the memory bus to 64-bit in addition to halving the capacity, compared with the 8GB model's 128-bit interface. Memory speed stays at 18 Gbps on both, so bandwidth on the 4GB card drops in half, from 288 GB/s to 144 GB/s.

The existence of a lower-tier 4GB SKU beneath an already cut-down 8GB card reflects how tight GDDR6 allocation and pricing have become this year, with AI-driven DRAM demand pushing memory vendors toward HBM and server DDR5 at the expense of commodity GPU memory supplies. Trimming capacity further gives AMD and its board partners another price point to target in cost-sensitive markets. Still, with 8GB considered insufficient for many modern games, it is difficult to imagine the target buyer for the RX 9050 4GB.

ASRock has not listed pricing, availability regions, or TDP for either RX 9050 variant. The 8GB model was confirmed for Asia-Pacific and Latin America only, with no European or US launch planned, and the 4GB card appears to be following the same budget-focused regional positioning rather than receiving a global release.