From 9aec99ed8af0c502841755be0323beeef8b34d54 Mon Sep 17 00:00:00 2001
From: ReinerBforartists <reiner.prokein@posteo.de>
Date: Fri, 27 Feb 2026 20:32:33 +0100
Subject: [PATCH] AMD/ROCm - Fix VAE_KL_MEM_RATIO overestimation for modern
 ROCm - Added comment

---
 comfy/sd.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/comfy/sd.py b/comfy/sd.py
index 2e4fe46f0..8cfa82be3 100644
--- a/comfy/sd.py
+++ b/comfy/sd.py
@@ -440,7 +440,7 @@ class VAE:
             sd = diffusers_convert.convert_vae_state_dict(sd)
 
         if model_management.is_amd():
-            VAE_KL_MEM_RATIO = 1.3
+            VAE_KL_MEM_RATIO = 1.3 # Conservative margin for modern ROCm 7.x, reduced from 2.73 (see PR #12685)
         else:
             VAE_KL_MEM_RATIO = 1.0