add int4_gptaq benchmark (#51)

Author: StromNoNo

docs/source/performance/quantization/benchmarks.md

@@ -330,3 +330,36 @@ DeepSeek-R1-0528模型的`FP8-Block-Wise`、`W4A8-FP8`在`GPQA Diamond`、`AIME
    +-------------------------------+--------------+---------+---------+---------+
 
 ```
+
+
+## INT4-GPTAQ
+
+INT4-GPTAQ在`GSM8K`、`HUMANEVAL`、`GPQA Diamond`上的评测结果如下：
+
+```{eval-rst}
+.. table::
+   :align: center
+   :name: table-INT4-GPTAQ-performance
+
+   +-----------+--------------+-------+-----------+--------------+
+   | Model     | Quantization | GSM8K | HUMANEVAL | GPQA Diamond |
+   +===========+==============+=======+===========+==============+
+   | Qwen3-4B  | BF16         | 85.37 | 72.56     | 37.88        |
+   +           +--------------+-------+-----------+--------------+
+   |           | INT4-GPTQ    | 81.65 | 61.59     | 35.35        |
+   +           +--------------+-------+-----------+--------------+
+   |           | INT4-GPTAQ   | 82.56 | 64.02     | 39.39        |
+   +-----------+--------------+-------+-----------+--------------+
+   | Qwen3-8B  | BF16         | 87.79 | 63.41     | 32.32        |
+   +           +--------------+-------+-----------+--------------+
+   |           | INT4-GPTQ    | 86.43 | 62.20     | 34.85        |
+   +           +--------------+-------+-----------+--------------+
+   |           | INT4-GPTAQ   | 86.66 | 64.02     | 33.33        |
+   +-----------+--------------+-------+-----------+--------------+
+   | Qwen3-32B | BF16         | 74.53 | 37.80     | 40.40        |
+   +           +--------------+-------+-----------+--------------+
+   |           | INT4-GPTQ    | 65.58 | 43.29     | 40.40        |
+   +           +--------------+-------+-----------+--------------+
+   |           | INT4-GPTAQ   | 69.52 | 37.20     | -            |
+   +-----------+--------------+-------+-----------+--------------+
+```