diff --git a/src/gallium/drivers/radeonsi/si_pipe.h b/src/gallium/drivers/radeonsi/si_pipe.h
index 3d38cf05fc4..e385c57b394 100644
--- a/src/gallium/drivers/radeonsi/si_pipe.h
+++ b/src/gallium/drivers/radeonsi/si_pipe.h
@@ -55,7 +55,7 @@ extern "C" {
 #define SI_DRAW_ID_UNKNOWN        ((unsigned)INT_MIN)
 #define SI_RESTART_INDEX_UNKNOWN  ((unsigned)INT_MIN)
 #define SI_INSTANCE_COUNT_UNKNOWN ((unsigned)INT_MIN)
-#define SI_NUM_SMOOTH_AA_SAMPLES  8
+#define SI_NUM_SMOOTH_AA_SAMPLES  4
 #define SI_MAX_POINT_SIZE         2048
 #define SI_GS_PER_ES              128
 /* Alignment for optimal CP DMA performance. */