Head to head

RTX 5080 vs Radeon RX 7900 XTX

The Radeon RX 7900 XTX holds more — 24 GB against 16 GB — which decides what you can load at all. The Radeon RX 7900 XTX has more bandwidth at 960 GB/s, which decides how fast tokens come out once a model fits.

Model (Q4_K_M, 8K)RTX 5080tok/sRadeon RX 7900 XTXtok/s
Llama 3.1 8B Runs comfortably 121 Runs comfortably 105
Llama 3.1 70B Won't fit 1.35 Won't fit 1.52
Llama 3.2 3B Runs comfortably 266 Runs comfortably 230
Llama 3.2 1B Runs comfortably 700 Runs comfortably 609
Llama 4 Scout 109B-A17B Won't fit 4.91 Won't fit 4.91
Qwen3 8B Runs comfortably 117 Runs comfortably 101
Qwen3 14B Runs comfortably 68.7 Runs comfortably 59.3
Qwen3 32B Won't fit 4.98 Fits, but tight 27.6
Qwen3 4B Runs comfortably 212 Runs comfortably 183
Qwen3 30B-A3B Won't fit 46.2 Runs comfortably 112
Qwen3 235B-A22B Won't fit 3.36 Won't fit 3.07
Qwen2.5-Coder 32B Won't fit 4.98 Fits, but tight 27.6
Qwen2.5 7B Runs comfortably 135 Runs comfortably 116
Qwen2.5 72B Won't fit 1.31 Won't fit 1.44
Gemma 3 4B Runs comfortably 226 Runs comfortably 196
Gemma 3 12B Runs comfortably 82.3 Runs comfortably 71.1

Specifications

RTX 5080Radeon RX 7900 XTX
Memory16 GB24 GB
Bandwidth960 GB/s960 GB/s
FP16 compute112 TFLOPS123 TFLOPS
Launch price$999$999
ArchitectureBlackwellRDNA3