diff --git a/comfy/model_management.py b/comfy/model_management.py
index 052dfb775..c19311eab 100644
--- a/comfy/model_management.py
+++ b/comfy/model_management.py
@@ -203,6 +203,8 @@ def get_autocast_device(dev):
 def xformers_enabled():
     if vram_state == CPU:
         return False
+    if torch.cuda.get_device_properties("cuda").name == "AMD":
+        return False
     return XFORMERS_IS_AVAILBLE
 
 
@@ -268,6 +270,9 @@ def should_use_fp16():
     props = torch.cuda.get_device_properties("cuda")
     if props.major < 7:
         return False
+    
+    if "AMD" in props.name:
+        return False
 
     #FP32 is faster on those cards?
     nvidia_16_series = ["1660", "1650", "1630", "T500", "T550", "T600"]