Gemma 4 QAT benchmark results (AMD 7900 XTX): faster, less VRAM, no quality loss

In three linesGemma 4 QAT benchmark on AMD 7900 XTX: 12B QAT is 45% faster than Q8_0 (176s vs 323s), saves 5.7GB VRAM, identical quality. 26B and 31B QAT models show 1.3x-1.5x speedups with no quality loss across all prompt types.

Summary generated by Claude — human-verified