diff --git a/intern/cycles/integrator/tile.cpp b/intern/cycles/integrator/tile.cpp
index 3387b7b..60d9da7 100644
--- a/intern/cycles/integrator/tile.cpp
+++ b/intern/cycles/integrator/tile.cpp
@@ -72,16 +72,23 @@ TileSize tile_calculate_best_size(const int2 &image_size,
 
   TileSize tile_size;
 
-  /* Calculate tile size as if it is the most possible one to fit an entire range of samples.
-   * The idea here is to keep tiles as small as possible, and keep device occupied by scheduling
-   * multiple tiles with the same coordinates rendering different samples. */
-  const int num_path_states_per_sample = max_num_path_states / num_samples;
-  if (num_path_states_per_sample != 0) {
-    tile_size.width = round_down_to_power_of_two(lround(sqrt(num_path_states_per_sample)));
-    tile_size.height = tile_size.width;
+  if (scrambling_distance < 0.9f) {
+    /* Prefer large tiles for scrambling distance, bounded by max num path states. */
+    tile_size.width = min(image_size.x, max_num_path_states);
+    tile_size.height = min(image_size.y, max(max_num_path_states / tile_size.width, 1));
   }
   else {
-    tile_size.width = tile_size.height = 1;
+    /* Calculate tile size as if it is the most possible one to fit an entire range of samples.
+     * The idea here is to keep tiles as small as possible, and keep device occupied by scheduling
+     * multiple tiles with the same coordinates rendering different samples. */
+    const int num_path_states_per_sample = max_num_path_states / num_samples;
+    if (num_path_states_per_sample != 0) {
+      tile_size.width = round_down_to_power_of_two(lround(sqrt(num_path_states_per_sample)));
+      tile_size.height = tile_size.width;
+    }
+    else {
+      tile_size.width = tile_size.height = 1;
+    }
   }
 
   if (num_samples == 1) {