| Test | Realtech ALC201A | Ladtek WinFast 4X (CMI8738) | Hoontech Digital XG 754 | M-Audio Audiophile USB |
| Frequency response (from 40 Hz to 15 kHz), dB: | +0.32, -1.02 | +0.41, -1.47 | +0.13, -1.09 | +0.02, -0.05 |
| Noise level, dB (A): | -76.9 | -78.0 | -88.8 | -95.7 |
| Dynamic range, dB (A): | 75.6 | 76.4 | 85.5 | 95.7 |
| THD, %: | 0.0065 | 1.734 | 0.0079 | 0.0011 |
| IMD, %: | 0.075 | 6.844 | 0.024 | 0.0053 |
| Stereo crosstalk, dB: | -72.5 | -76.1 | -90.4 | -97.5 |
