diff --git a/src/intel/vulkan/anv_physical_device.c b/src/intel/vulkan/anv_physical_device.c
index 067de17b562..2918212cb1b 100644
--- a/src/intel/vulkan/anv_physical_device.c
+++ b/src/intel/vulkan/anv_physical_device.c
@@ -1993,7 +1993,10 @@ anv_restrict_sys_heap_size(struct anv_physical_device *device,
          return kmd_reported_sram;
    }
 
-   return kmd_reported_sram / 2;
+   if (kmd_reported_sram <= 4ull * 1024ull * 1024ull * 1024ull)
+      return kmd_reported_sram / 2;
+   else
+      return kmd_reported_sram * 3 / 4;
 }
 
 static VkResult MUST_CHECK