Update app.py

app.py

@@ -76,8 +76,9 @@ GPUS = {
     # AMD MI / CDNA datacenter
     "MI50":            {"FP32": 13.70,  "FP16":  27.40,  "INT4":   0.0},
     "MI100":           {"FP32": 23.10,  "FP16":  46.20,  "INT4":   0.0},
-    "MI200":           {"FP32":300.0,   "FP16": 600.0,   "INT4":3000.0},
-    "MI300":           {"FP32":400.0,   "FP16": 800.0,   "INT4":4000.0},
+    "MI200":           {"FP32": 300.0,  "FP16": 600.0,   "INT4":3000.0},
+    "MI300":           {"FP32": 400.0,  "FP16": 800.0,   "INT4":4000.0},
+    "MI355X":          {"FP32": 157,    "FP16": 2500,    "INT4": 10000},
         # Hopper / Grace superchips
     "H200":            {"FP32": 350.0,  "FP16": 700.0,  "INT4": 3500.0},
     "GH200":           {"FP32": 300.0,  "FP16": 600.0,  "INT4": 3000.0},  # H100-class GPU + Grace CPU