其实低档ac97（alc202，两声道）也不差（RMAA测试，原创）

a7v266e

Realtek AC97 Audio
RightMark Audio Analyzer test


Testing chain: External loopback (line-out - line-in)
Sampling mode: 16-bit, 44 kHz






Summary
Frequency response (from 40 Hz to 15 kHz), dB: +0.14, -0.20 Very good
Noise level, dB (A): -84.1 Good
Dynamic range, dB (A): 83.9 Good
THD, %: 0.0079 Very good
IMD, %: 0.051 Good
Stereo crosstalk, dB: -82.2 Very good
IMD at 10 kHz, %: 0.040 Good


General performance: Good