Benchmark tests reveal that AMD’s 4GB Radeon RX 9050 lags significantly behind its 8GB counterpart, highlighting the impact of reduced memory bandwidth and capacity on gaming performance at 1080p.
AMD’s Radeon RX 9050 has become an awkward case study in how much damage a cut-down memory configuration can do. A new benchmark from Hardware Unboxed shows that the 4GB version, which is aimed at OEM pre-built systems rather than retail buyers, trails the 8GB card by a wide margin even though both carry the same model name and the same GPU core. According to the testing, the smaller card averaged 78fps in 18 games at 1080p with low settings, versus 107fps for the 8GB model.
The gap is not just about capacity. AMD also halves the memory bus on the 4GB RX 9050, dropping it from 128-bit to 64-bit, which cuts bandwidth from 288GB/s to 144GB/s and reduces Infinity Cache from 32MB to 16MB. The graphics chip itself is unchanged, with both versions retaining 16 compute units, 1,024 stream processors, the same gaming and boost clocks, and a 92W board power rating. In other words, the performance loss comes mainly from the narrower memory subsystem, not a weaker shader array.
That design choice matters most in modern games, where 4GB of VRAM is increasingly tight. Hardware Unboxed found the 8GB card was 37% faster on average, and still 32% ahead even when both cards were tested at their lowest settings. In individual titles the spread was wider, with the 8GB model ahead by 53% in 007: First Light and 47% in Forza Horizon 6. TechSpot’s separate VRAM benchmarking also reinforces the broader point: 4GB cards increasingly run into limits in current 1080p games, where frame rates can drop and stutter becomes more common as texture and asset demands rise.
The comparison also highlights how differently AMD has handled this product class from Nvidia’s entry-level RTX 3050 variants. Nvidia’s 6GB model was cut back not only in memory and bus width but also in core count, clocks and power draw. AMD has not done that here, leaving the RX 9050’s compute side intact while sharply reducing the memory path. That makes the naming more deceptive for buyers of pre-built PCs: a system listing that says only “Radeon RX 9050” could mean a card with materially different gaming performance depending on whether it is the 4GB or 8GB version.
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