AMD Radeon RX 9050 4GB OEM variant falls significantly behind the 8GB model in early gaming tests

A 4GB OEM-only version of AMD’s Radeon RX 9050 has been tested and found to be substantially weaker than its 8GB retail counterpart, highlighting hardware bottlenecks and the importance of system configuration.

AMD’s Radeon RX 9050 has now been seen in a 4GB OEM-only version, and early testing suggests the cut-down model is markedly weaker than the 8GB card sold through retail channels. Hardware Unboxed and Toasty Bros, as reported by VideoCardz, had to work with complete CyberPowerPC systems to get hold of the configuration, underlining that this variant is not intended for standalone sale.

The two cards share the same core GPU specification, including 1,024 stream processors and a boost clock of up to 2.4GHz. The difference lies in memory. The 4GB model uses a 64-bit bus with GDDR6 running at 18Gbps, giving it 144GB/s of bandwidth. The 8GB version doubles that to a 128-bit bus and 288GB/s, a gap that explains much of the performance split.

Hardware Unboxed’s testing across 18 games found the 4GB card averaging 78fps at 1080p on low settings, with 1% lows of 55fps. The 8GB model reached 107fps on average and 78fps for 1% lows, making the higher-capacity version about 37% faster. In an even lighter graphics preset, the 4GB card managed 111fps against 147fps for the 8GB board, while Intel’s Arc B570 came in at 112fps, placing it well ahead of the RX 9050 4GB in that scenario.

Toasty Bros also showed that the wider PC build can distort the picture. Their CyberPowerPC test system used a Ryzen 5 5500 and just 8GB of DDR4 in single-channel mode, a setup that can create its own bottlenecks. Moving the card into a machine with a Ryzen 5 9600X and 32GB of DDR5 improved some results, and simply adding a second DDR4 module to the original system also reduced some of the constraints. The finding is a reminder that, for OEM graphics cards, the surrounding hardware can be almost as important as the GPU itself.