docs(performance): add improved NVFP4 benchmarks

Signed-off-by: Malay Nagda <malayn@nvidia.com>

Author: malay-nagda

docs/performance-summary.md

@@ -43,6 +43,7 @@ The performance data includes:
 | System | #-GPUs | Precision | GBS | MBS | Sequence Length | TP | PP | CP | VP | EP | Tokens / sec / GPU | Model TFLOP / sec / GPU |
 |--------|--------|-----------|-----|-----|-----------------|----|----|----|----|----|-----------------------|-------------------------|
 | DGX-GB300 | 256 | MXFP8 | 4096 | 1 | 4096 | 1 | 2 | 1 | 8 | 32 | 6288 | 1636 |
+| DGX-GB300 | 256 | NVFP4 | 4096 | 1 | 4096 | 1 | 2 | 1 | 8 | 32 | 6640 | 1728 |
 | DGX-GB200 | 256 | MXFP8 | 4096 | 1 | 4096 | 1 | 4 | 1 | 4 | 64 | 4912 | 1277 |
 
 #### Model: DeepSeekV4 Flash
@@ -73,7 +74,9 @@ The performance data includes:
 | System | #-GPUs | Precision | GBS | MBS | Sequence Length | TP | PP | CP | VP | EP | Tokens / sec / GPU | Model TFLOP / sec / GPU |
 |--------|--------|-----------|-----|-----|-----------------|----|----|----|----|----|-----------------------|-------------------------|
 | DGX-GB300 | 256 | MXFP8 | 8192 | 2 | 4096 | 1 | 4 | 1 | 12 | 32 | 8832 | 1306 |
+| DGX-GB300 | 256 | NVFP4 | 8192 | 2 | 4096 | 1 | 4 | 1 | 12 | 32 | 9216 | 1365 |
 | DGX-GB200 | 256 | MXFP8 | 8192 | 1 | 4096 | 1 | 8 | 1 | 3 | 32 | 7264 | 1076 |
+| DGX-GB200 | 256 | NVFP4 | 8192 | 1 | 4096 | 1 | 8 | 1 | 3 | 32 | 8000 | 1185 |
 
 #### Model: Nemotron_3_5_Lightning