diff --git a/ggml/src/ggml-vulkan/ggml-vulkan.cpp b/ggml/src/ggml-vulkan/ggml-vulkan.cpp
index 09e90127b7..ee504f8862 100644
--- a/ggml/src/ggml-vulkan/ggml-vulkan.cpp
+++ b/ggml/src/ggml-vulkan/ggml-vulkan.cpp
@@ -2972,6 +2972,7 @@ static void ggml_vk_load_shaders(vk_device& device) {
             CREATE_MMQ(GGML_TYPE_Q8_0, pipeline_dequant_mul_mat_mat_q8_1[GGML_TYPE_Q8_0], matmul_q8_0_q8_1, mmq_wg_denoms, warptile_mmq_int, vk_mat_mat_push_constants, 3, );
 
             CREATE_MMQ(GGML_TYPE_Q2_K, pipeline_dequant_mul_mat_mat_q8_1[GGML_TYPE_Q2_K], matmul_q2_k_q8_1, mmq_wg_denoms, warptile_mmq_int_k, vk_mat_mat_push_constants, 3, );
+            CREATE_MMQ(GGML_TYPE_Q4_K, pipeline_dequant_mul_mat_mat_q8_1[GGML_TYPE_Q4_K], matmul_q4_k_q8_1, mmq_wg_denoms, warptile_mmq_int_k, vk_mat_mat_push_constants, 3, );
         }
 #endif
 
@@ -3093,6 +3094,7 @@ static void ggml_vk_load_shaders(vk_device& device) {
             CREATE_MMQ(GGML_TYPE_Q8_0, pipeline_dequant_mul_mat_mat_q8_1[GGML_TYPE_Q8_0].f32acc, matmul_q8_0_q8_1, mmq_wg_denoms, warptile_mmq_int, vk_mat_mat_push_constants, 3, );
 
             CREATE_MMQ(GGML_TYPE_Q2_K, pipeline_dequant_mul_mat_mat_q8_1[GGML_TYPE_Q2_K].f32acc, matmul_q2_k_q8_1, mmq_wg_denoms, warptile_mmq_int_k, vk_mat_mat_push_constants, 3, );
+            CREATE_MMQ(GGML_TYPE_Q4_K, pipeline_dequant_mul_mat_mat_q8_1[GGML_TYPE_Q4_K].f32acc, matmul_q4_k_q8_1, mmq_wg_denoms, warptile_mmq_int_k, vk_mat_mat_push_constants, 3, );
         }
 #endif
 
diff --git a/ggml/src/ggml-vulkan/vulkan-shaders/dequant_funcs.glsl b/ggml/src/ggml-vulkan/vulkan-shaders/dequant_funcs.glsl
index f8de1e2971..a98dd626aa 100644
--- a/ggml/src/ggml-vulkan/vulkan-shaders/dequant_funcs.glsl
+++ b/ggml/src/ggml-vulkan/vulkan-shaders/dequant_funcs.glsl
@@ -529,7 +529,7 @@ vec2 dequantize(uint ib, uint iqs, uint a_offset) {
     const uint is = 2 * n + b;                 // 0..7
     const uint qsi = n * 32 + (iqs % 16) * 2;  // 0,2,4..126
 
-    const vec2 loadd = vec2(data_a[a_offset + ib].d);
+    const vec2 loadd = vec2(data_a[a_offset + ib].dm);
 
     const uint scidx0 = (is < 4) ? is : (is + 4);
     const uint scidx1 = (is < 4) ? is : (is - 4);
diff --git a/ggml/src/ggml-vulkan/vulkan-shaders/dequant_q4_k.comp b/ggml/src/ggml-vulkan/vulkan-shaders/dequant_q4_k.comp
index 8b7be557e9..0f23dc0a34 100644
--- a/ggml/src/ggml-vulkan/vulkan-shaders/dequant_q4_k.comp
+++ b/ggml/src/ggml-vulkan/vulkan-shaders/dequant_q4_k.comp
@@ -20,8 +20,8 @@ void main() {
         const uint is = 2 * il;
         const uint n = 4;
 
-        const FLOAT_TYPE dall = FLOAT_TYPE(data_a[ib].d.x);
-        const FLOAT_TYPE dmin = FLOAT_TYPE(data_a[ib].d.y);
+        const FLOAT_TYPE dall = FLOAT_TYPE(data_a[ib].dm.x);
+        const FLOAT_TYPE dmin = FLOAT_TYPE(data_a[ib].dm.y);
 
         const uint y_idx = ib * QUANT_K + 64 * il + n * ir;
         const uint qs_idx = 32*il + n * ir;
diff --git a/ggml/src/ggml-vulkan/vulkan-shaders/mul_mat_vec_q4_k.comp b/ggml/src/ggml-vulkan/vulkan-shaders/mul_mat_vec_q4_k.comp
index 21d07d2e50..417d96af26 100644
--- a/ggml/src/ggml-vulkan/vulkan-shaders/mul_mat_vec_q4_k.comp
+++ b/ggml/src/ggml-vulkan/vulkan-shaders/mul_mat_vec_q4_k.comp
@@ -14,9 +14,8 @@ void calc_superblock(const uint a_offset, const uint b_offset, const uint v_im,
 
     [[unroll]] for (uint n = 0; n < num_rows; ++n) {
         const uint ib0 = a_offset / QUANT_K + (first_row+n)*num_blocks_per_row;
-        vec2 d = vec2(data_a[ib0 + i].d);
-        const FLOAT_TYPE dall = FLOAT_TYPE(d.x);
-        const FLOAT_TYPE dmin = FLOAT_TYPE(d.y);
+        const FLOAT_TYPE dall = FLOAT_TYPE(data_a[ib0 + i].dm.x);
+        const FLOAT_TYPE dmin = FLOAT_TYPE(data_a[ib0 + i].dm.y);
 
         const uint32_t scale0_u32 = data_a_packed16[ib0 + i].scales[v_im    ];
         const uint32_t scale4_u32 = data_a_packed16[ib0 + i].scales[v_im + 2];
diff --git a/ggml/src/ggml-vulkan/vulkan-shaders/mul_mm_funcs.glsl b/ggml/src/ggml-vulkan/vulkan-shaders/mul_mm_funcs.glsl
index 1a0199f474..b643bed7e6 100644
--- a/ggml/src/ggml-vulkan/vulkan-shaders/mul_mm_funcs.glsl
+++ b/ggml/src/ggml-vulkan/vulkan-shaders/mul_mm_funcs.glsl
@@ -179,7 +179,7 @@ void load_a_to_shmem(const uint pos_a, const uint row, const uint col, const uin
             const uint is = 2 * n + b;                 // 0..7
             const uint qsi = n * 32 + (iqs % 16) * 2;  // 0,2,4..126
 
-            const vec2 loadd = vec2(data_a[ib].d);
+            const vec2 loadd = vec2(data_a[ib].dm);
 
             const uint scidx0 = (is < 4) ? is : (is + 4);
             const uint scidx1 = (is < 4) ? is : (is - 4);
diff --git a/ggml/src/ggml-vulkan/vulkan-shaders/mul_mmq_funcs.glsl b/ggml/src/ggml-vulkan/vulkan-shaders/mul_mmq_funcs.glsl
index c7227916f6..2ff0b766e3 100644
--- a/ggml/src/ggml-vulkan/vulkan-shaders/mul_mmq_funcs.glsl
+++ b/ggml/src/ggml-vulkan/vulkan-shaders/mul_mmq_funcs.glsl
@@ -233,7 +233,7 @@ ACC_TYPE mul_q8_1(const int32_t sum_d, const int32_t sum_m, const vec2 dma, cons
 #ifdef MMQ_SHMEM
 void block_a_to_shmem(const uint buf_ib, const uint ib, const uint iqs) {
     const uint ib_k = ib / 8;
-    const uint iqs_k = (ib % 8) * 8 + iqs * 4;
+    const uint iqs_k = (ib % 8) * 8 + iqs * QUANT_R_MMQ;
 
     const uint qs_idx = (iqs_k / 32) * 8 + (iqs_k % 8);
     const uint qs_shift = ((iqs_k % 32) / 8) * 2;
@@ -279,6 +279,63 @@ ACC_TYPE mmq_dot_product(const uint ib_a) {
 #endif // MMQ_SHMEM
 #endif
 
+#if defined(DATA_A_Q4_K)
+// 4-byte loads for Q4_K blocks (144 bytes)
+ACC_TYPE mul_q8_1(const int32_t q_sum, const vec2 dma, const vec2 dsb, const int32_t sum_divisor) {
+    return ACC_TYPE(dsb.x * dma.x * float(q_sum) - dma.y * dsb.y);
+}
+
+#ifdef MMQ_SHMEM
+void block_a_to_shmem(const uint buf_ib, const uint ib, const uint iqs) {
+    const uint ib_k = ib / 8;
+    const uint iqs_k = (ib % 8) * 8 + iqs * QUANT_R_MMQ;
+
+    const uint qs_idx = (iqs_k / 16) * 8 + (iqs_k % 8);
+    const uint qs_shift = ((iqs_k % 16) / 8) * 4;
+
+    // Repack 2x4 quants into one int
+    const uint32_t vals0 = (data_a_packed32[ib_k].qs[qs_idx    ] >> qs_shift) & 0x0F0F0F0F;
+    const uint32_t vals1 = (data_a_packed32[ib_k].qs[qs_idx + 1] >> qs_shift) & 0x0F0F0F0F;
+
+    buf_a[buf_ib].qs[iqs] = vals0 | (vals1 << 4);
+
+    if (iqs == 0) {
+        // Scale index
+        const uint is = iqs_k / 8;
+        u8vec2 scale_dm;
+        if (is < 4) {
+            scale_dm = u8vec2(data_a[ib_k].scales[is] & 0x3F, data_a[ib_k].scales[is + 4] & 0x3F);
+        } else {
+            scale_dm = u8vec2((data_a[ib_k].scales[is+4] & 0xF) | ((data_a[ib_k].scales[is-4] & 0xC0) >> 2),
+                              (data_a[ib_k].scales[is+4] >>  4) | ((data_a[ib_k].scales[is  ] & 0xC0) >> 2));
+        }
+
+        buf_a[buf_ib].dm = FLOAT_TYPE_VEC2(data_a_packed32[ib_k].dm) * FLOAT_TYPE_VEC2(scale_dm);
+    }
+}
+
+void block_a_to_registers(const uint reg_ib, const uint buf_ib) {
+    cache_a[reg_ib].dm = buf_a[buf_ib].dm;
+
+    [[unroll]] for (uint iqs = 0; iqs < 4; iqs++) {
+        cache_a[reg_ib].qs[iqs] = buf_a[buf_ib].qs[iqs];
+    }
+}
+
+ACC_TYPE mmq_dot_product(const uint ib_a) {
+    int32_t q_sum = 0;
+
+    [[unroll]] for (uint iqs = 0; iqs < 8; iqs++) {
+        const int32_t qs_a = int32_t((cache_a[ib_a].qs[iqs / 2] >> ((iqs % 2) * 4)) & 0x0F0F0F0F);
+
+        q_sum += dotPacked4x8EXT(qs_a, cache_b.qs[iqs]);
+    }
+
+    return mul_q8_1(q_sum, cache_a[ib_a].dm, cache_b.ds, 1);
+}
+#endif // MMQ_SHMEM
+#endif
+
 #ifdef MMQ_SHMEM
 void block_b_to_shmem(const uint buf_ib, const uint ib, const uint iqs) {
     const uint ib_outer = ib / 4;
diff --git a/ggml/src/ggml-vulkan/vulkan-shaders/mul_mmq_shmem_types.glsl b/ggml/src/ggml-vulkan/vulkan-shaders/mul_mmq_shmem_types.glsl
index e445c5646b..774d0c745e 100644
--- a/ggml/src/ggml-vulkan/vulkan-shaders/mul_mmq_shmem_types.glsl
+++ b/ggml/src/ggml-vulkan/vulkan-shaders/mul_mmq_shmem_types.glsl
@@ -26,18 +26,25 @@ struct block_a_cache {
 };
 #elif defined(DATA_A_Q8_0)
 #define QUANT_R_MMQ 1
+// AMD likes 4, Intel likes 1 and Nvidia likes 2
+#define BK_STEP 4
 struct block_a_cache {
     int32_t qs[32/4];
     FLOAT_TYPE dm;
 };
 #elif defined(DATA_A_Q2_K)
 #define QUANT_R_MMQ 4
-struct block_a_cache
-{
+struct block_a_cache {
     uint32_t qs[2];
     u8vec2 scales;
     FLOAT_TYPE_VEC2 dm;
 };
+#elif defined(DATA_A_Q4_K)
+#define QUANT_R_MMQ 2
+struct block_a_cache {
+    uint32_t qs[4];
+    FLOAT_TYPE_VEC2 dm;
+};
 #endif
 
 struct block_b_cache
diff --git a/ggml/src/ggml-vulkan/vulkan-shaders/types.glsl b/ggml/src/ggml-vulkan/vulkan-shaders/types.glsl
index bf42e16f32..973483a81b 100644
--- a/ggml/src/ggml-vulkan/vulkan-shaders/types.glsl
+++ b/ggml/src/ggml-vulkan/vulkan-shaders/types.glsl
@@ -288,21 +288,21 @@ struct block_q3_K_packed16
 
 struct block_q4_K
 {
-    f16vec2 d;
+    f16vec2 dm;
     uint8_t scales[3*QUANT_K_Q4_K/64];
     uint8_t qs[QUANT_K_Q4_K/2];
 };
 
 struct block_q4_K_packed16
 {
-    f16vec2 d;
+    f16vec2 dm;
     uint16_t scales[3*QUANT_K_Q4_K/64/2];
     uint16_t qs[QUANT_K_Q4_K/2/2];
 };
 
 struct block_q4_K_packed32
 {
-    f16vec2 d;
+    f16vec2 dm;
     uint32_t scales[3*QUANT_K_Q4_K/64/4];
     uint32_t qs[QUANT_K_Q4_K/2/4];
 };
diff --git a/ggml/src/ggml-vulkan/vulkan-shaders/vulkan-shaders-gen.cpp b/ggml/src/ggml-vulkan/vulkan-shaders/vulkan-shaders-gen.cpp
index e84a99e458..0f93917c15 100644
--- a/ggml/src/ggml-vulkan/vulkan-shaders/vulkan-shaders-gen.cpp
+++ b/ggml/src/ggml-vulkan/vulkan-shaders/vulkan-shaders-gen.cpp
@@ -567,7 +567,7 @@ void matmul_shaders(bool fp16, MatMulIdType matmul_id_type, bool coopmat, bool c
 
 #if defined(GGML_VULKAN_INTEGER_DOT_GLSLC_SUPPORT)
         // Integer dot mmq performs better with f32 accumulators
-        if (!f16acc && !coopmat && !coopmat2 && matmul_id_type == MatMulIdType::NONE && (is_legacy_quant(tname) || tname == "q2_k")) {
+        if (!f16acc && !coopmat && !coopmat2 && matmul_id_type == MatMulIdType::NONE && (is_legacy_quant(tname) || tname == "q2_k" || tname == "q4_k")) {
             string_to_spv(shader_name + "_" + tname + "_q8_1", "mul_mmq.comp", merge_maps(merge_maps(base_dict, float_type_dict), {{data_a_key, "1"}, {"D_TYPE", "float"},}), fp16, coopmat, coopmat2, f16acc);
         }
 #endif