diff --git a/src/panfrost/lib/pan_desc.c b/src/panfrost/lib/pan_desc.c
index cd8eaf0bd85..0c5c0893ac5 100644
--- a/src/panfrost/lib/pan_desc.c
+++ b/src/panfrost/lib/pan_desc.c
@@ -1048,9 +1048,19 @@ pan_select_crc_rt(const struct pan_fb_info *fb)
 {
    int best_rt = -1;
 
-#if PAN_ARCH <= 6
+#if PAN_ARCH <= 5
+   /* CRC was introduced in v4 and MRT in v5 but unlike v6 there's no details
+    * how both work together. */
    if (fb->rt_count > 1)
       return best_rt;
+
+#elif PAN_ARCH == 6
+   /* On v6, all enabled RTs are used to compute a CRC (no crc_render_target
+    * field on the DBD). The write buffer size of the enabled color
+    * attachments for a tile must fit within 1600 bytes. */
+   if (fb->rt_count > 1 &&
+       pan_cbuf_bytes_per_pixel(fb) * fb->tile_size > 1600)
+      return best_rt;
 #endif
 
    for (unsigned i = 0; i < fb->rt_count; i++) {