diff --git a/param.h b/param.h
index 4084c781d..d03e60fcb 100644
--- a/param.h
+++ b/param.h
@@ -695,14 +695,14 @@ USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
 #define CGEMM3M_DEFAULT_UNROLL_N 4
 #define CGEMM3M_DEFAULT_UNROLL_M 8
-#define ZGEMM3M_DEFAULT_UNROLL_N 8
-#define ZGEMM3M_DEFAULT_UNROLL_M 2
+#define ZGEMM3M_DEFAULT_UNROLL_N 4
+#define ZGEMM3M_DEFAULT_UNROLL_M 4
 
 #define CGEMM3M_DEFAULT_P 320
-#define ZGEMM3M_DEFAULT_P 224
+#define ZGEMM3M_DEFAULT_P 256
 #define XGEMM3M_DEFAULT_P 112
 #define CGEMM3M_DEFAULT_Q 320
-#define ZGEMM3M_DEFAULT_Q 224
+#define ZGEMM3M_DEFAULT_Q 256
 #define XGEMM3M_DEFAULT_Q 224
 #define CGEMM3M_DEFAULT_R 12288
 #define ZGEMM3M_DEFAULT_R 12288
@@ -1598,14 +1598,14 @@ USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
 #define CGEMM3M_DEFAULT_UNROLL_N 4
 #define CGEMM3M_DEFAULT_UNROLL_M 8
-#define ZGEMM3M_DEFAULT_UNROLL_N 8
-#define ZGEMM3M_DEFAULT_UNROLL_M 2
+#define ZGEMM3M_DEFAULT_UNROLL_N 4
+#define ZGEMM3M_DEFAULT_UNROLL_M 4
 
 #define CGEMM3M_DEFAULT_P 320
-#define ZGEMM3M_DEFAULT_P 224
+#define ZGEMM3M_DEFAULT_P 256
 #define XGEMM3M_DEFAULT_P 112
 #define CGEMM3M_DEFAULT_Q 320
-#define ZGEMM3M_DEFAULT_Q 224
+#define ZGEMM3M_DEFAULT_Q 256
 #define XGEMM3M_DEFAULT_Q 224
 #define CGEMM3M_DEFAULT_R 12288
 #define ZGEMM3M_DEFAULT_R 12288