diff --git a/libavutil/x86/pixelutils.asm b/libavutil/x86/pixelutils.asm
index 8b45ead78b..fbe9b45971 100644
--- a/libavutil/x86/pixelutils.asm
+++ b/libavutil/x86/pixelutils.asm
@@ -25,44 +25,6 @@
 
 SECTION .text
 
-;-------------------------------------------------------------------------------
-; int ff_pixelutils_sad_8x8_mmx(const uint8_t *src1, ptrdiff_t stride1,
-;                               const uint8_t *src2, ptrdiff_t stride2);
-;-------------------------------------------------------------------------------
-INIT_MMX mmx
-cglobal pixelutils_sad_8x8, 4,4,0, src1, stride1, src2, stride2
-    pxor        m7, m7
-    pxor        m6, m6
-%rep 4
-    mova        m0, [src1q]
-    mova        m2, [src1q + stride1q]
-    mova        m1, [src2q]
-    mova        m3, [src2q + stride2q]
-    psubusb     m4, m0, m1
-    psubusb     m5, m2, m3
-    psubusb     m1, m0
-    psubusb     m3, m2
-    por         m1, m4
-    por         m3, m5
-    punpcklbw   m0, m1, m7
-    punpcklbw   m2, m3, m7
-    punpckhbw   m1, m7
-    punpckhbw   m3, m7
-    paddw       m0, m1
-    paddw       m2, m3
-    paddw       m0, m2
-    paddw       m6, m0
-    lea         src1q, [src1q + 2*stride1q]
-    lea         src2q, [src2q + 2*stride2q]
-%endrep
-    psrlq       m0, m6, 32
-    paddw       m6, m0
-    psrlq       m0, m6, 16
-    paddw       m6, m0
-    movd        eax, m6
-    movzx       eax, ax
-    RET
-
 ;-------------------------------------------------------------------------------
 ; int ff_pixelutils_sad_8x8_mmxext(const uint8_t *src1, ptrdiff_t stride1,
 ;                                  const uint8_t *src2, ptrdiff_t stride2);
@@ -83,26 +45,6 @@ cglobal pixelutils_sad_8x8, 4,4,0, src1, stride1, src2, stride2
     movd        eax, m2
     RET
 
-;-------------------------------------------------------------------------------
-; int ff_pixelutils_sad_16x16_mmxext(const uint8_t *src1, ptrdiff_t stride1,
-;                                    const uint8_t *src2, ptrdiff_t stride2);
-;-------------------------------------------------------------------------------
-INIT_MMX mmxext
-cglobal pixelutils_sad_16x16, 4,4,0, src1, stride1, src2, stride2
-    pxor        m2, m2
-%rep 16
-    mova        m0, [src1q]
-    mova        m1, [src1q + 8]
-    psadbw      m0, [src2q]
-    psadbw      m1, [src2q + 8]
-    paddw       m2, m0
-    paddw       m2, m1
-    add         src1q, stride1q
-    add         src2q, stride2q
-%endrep
-    movd        eax, m2
-    RET
-
 ;-------------------------------------------------------------------------------
 ; int ff_pixelutils_sad_16x16_sse2(const uint8_t *src1, ptrdiff_t stride1,
 ;                                  const uint8_t *src2, ptrdiff_t stride2);
diff --git a/libavutil/x86/pixelutils_init.c b/libavutil/x86/pixelutils_init.c
index 184a3a4a9f..c3c0662414 100644
--- a/libavutil/x86/pixelutils_init.c
+++ b/libavutil/x86/pixelutils_init.c
@@ -21,13 +21,9 @@
 #include "pixelutils.h"
 #include "cpu.h"
 
-int ff_pixelutils_sad_8x8_mmx(const uint8_t *src1, ptrdiff_t stride1,
-                              const uint8_t *src2, ptrdiff_t stride2);
 int ff_pixelutils_sad_8x8_mmxext(const uint8_t *src1, ptrdiff_t stride1,
                                  const uint8_t *src2, ptrdiff_t stride2);
 
-int ff_pixelutils_sad_16x16_mmxext(const uint8_t *src1, ptrdiff_t stride1,
-                                   const uint8_t *src2, ptrdiff_t stride2);
 int ff_pixelutils_sad_16x16_sse2(const uint8_t *src1, ptrdiff_t stride1,
                                  const uint8_t *src2, ptrdiff_t stride2);
 int ff_pixelutils_sad_a_16x16_sse2(const uint8_t *src1, ptrdiff_t stride1,
@@ -53,10 +49,6 @@ void ff_pixelutils_sad_init_x86(av_pixelutils_sad_fn *sad, int aligned)
 {
     int cpu_flags = av_get_cpu_flags();
 
-    if (EXTERNAL_MMX(cpu_flags)) {
-        sad[2] = ff_pixelutils_sad_8x8_mmx;
-    }
-
     // The best way to use SSE2 would be to do 2 SADs in parallel,
     // but we'd have to modify the pixelutils API to return SIMD functions.
 
@@ -65,7 +57,6 @@ void ff_pixelutils_sad_init_x86(av_pixelutils_sad_fn *sad, int aligned)
     // so just use the MMX 8x8 version even when SSE2 is available.
     if (EXTERNAL_MMXEXT(cpu_flags)) {
         sad[2] = ff_pixelutils_sad_8x8_mmxext;
-        sad[3] = ff_pixelutils_sad_16x16_mmxext;
     }
 
     if (EXTERNAL_SSE2(cpu_flags)) {