diff --git a/src/coreclr/jit/hwintrinsiclistxarch.h b/src/coreclr/jit/hwintrinsiclistxarch.h
index 3e81d3f3da3f36..74864c02815e4e 100644
--- a/src/coreclr/jit/hwintrinsiclistxarch.h
+++ b/src/coreclr/jit/hwintrinsiclistxarch.h
@@ -263,6 +263,8 @@ HARDWARE_INTRINSIC(Vector512,       BitwiseOr,
 HARDWARE_INTRINSIC(Vector512,       Create,                                     64,            -1,      {INS_invalid,           INS_invalid,            INS_invalid,            INS_invalid,            INS_invalid,            INS_invalid,            INS_invalid,            INS_invalid,            INS_invalid,            INS_invalid},           HW_Category_Helper,                 HW_Flag_SpecialImport|HW_Flag_NoCodeGen)
 HARDWARE_INTRINSIC(Vector512,       CreateScalar,                               64,            -1,      {INS_invalid,           INS_invalid,            INS_invalid,            INS_invalid,            INS_invalid,            INS_invalid,            INS_invalid,            INS_invalid,            INS_invalid,            INS_invalid},           HW_Category_Helper,                 HW_Flag_SpecialImport|HW_Flag_NoCodeGen)
 HARDWARE_INTRINSIC(Vector512,       CreateScalarUnsafe,                         64,             1,      {INS_movd,              INS_movd,               INS_movd,               INS_movd,               INS_movd,               INS_movd,               INS_movd,               INS_movd,               INS_movss,              INS_movsd_simd},        HW_Category_SIMDScalar,             HW_Flag_SpecialImport|HW_Flag_SpecialCodeGen|HW_Flag_NoRMWSemantics)
+HARDWARE_INTRINSIC(Vector512,       ConvertToSingle,                            64,             1,      {INS_invalid,           INS_invalid,            INS_invalid,            INS_invalid,            INS_invalid,            INS_invalid,            INS_invalid,            INS_invalid,            INS_invalid,            INS_invalid},           HW_Category_Helper,                 HW_Flag_SpecialImport|HW_Flag_NoCodeGen|HW_Flag_BaseTypeFromFirstArg)
+HARDWARE_INTRINSIC(Vector512,       ConvertToInt32,                             64,             1,      {INS_invalid,           INS_invalid,            INS_invalid,            INS_invalid,            INS_invalid,            INS_invalid,            INS_invalid,            INS_invalid,            INS_invalid,            INS_invalid},           HW_Category_Helper,                 HW_Flag_SpecialImport|HW_Flag_NoCodeGen|HW_Flag_BaseTypeFromFirstArg)
 HARDWARE_INTRINSIC(Vector512,       Equals,                                     64,             2,      {INS_invalid,           INS_invalid,            INS_invalid,            INS_invalid,            INS_invalid,            INS_invalid,            INS_invalid,            INS_invalid,            INS_invalid,            INS_invalid},           HW_Category_Helper,                 HW_Flag_SpecialImport|HW_Flag_BaseTypeFromFirstArg|HW_Flag_NoCodeGen)
 HARDWARE_INTRINSIC(Vector512,       EqualsAll,                                  64,             2,      {INS_invalid,           INS_invalid,            INS_invalid,            INS_invalid,            INS_invalid,            INS_invalid,            INS_invalid,            INS_invalid,            INS_invalid,            INS_invalid},           HW_Category_Helper,                 HW_Flag_SpecialImport|HW_Flag_BaseTypeFromFirstArg|HW_Flag_NoCodeGen)
 HARDWARE_INTRINSIC(Vector512,       EqualsAny,                                  64,             2,      {INS_invalid,           INS_invalid,            INS_invalid,            INS_invalid,            INS_invalid,            INS_invalid,            INS_invalid,            INS_invalid,            INS_invalid,            INS_invalid},           HW_Category_Helper,                 HW_Flag_SpecialImport|HW_Flag_BaseTypeFromFirstArg|HW_Flag_NoCodeGen)
diff --git a/src/coreclr/jit/hwintrinsicxarch.cpp b/src/coreclr/jit/hwintrinsicxarch.cpp
index e32befa5c637c2..5422a8b702d6d4 100644
--- a/src/coreclr/jit/hwintrinsicxarch.cpp
+++ b/src/coreclr/jit/hwintrinsicxarch.cpp
@@ -1004,12 +1004,25 @@ GenTree* Compiler::impSpecialIntrinsic(NamedIntrinsic        intrinsic,
 
         case NI_Vector128_ConvertToInt32:
         case NI_Vector256_ConvertToInt32:
+        case NI_Vector512_ConvertToInt32:
         {
             assert(sig->numArgs == 1);
             assert(simdBaseType == TYP_FLOAT);
 
-            intrinsic = (simdSize == 32) ? NI_AVX_ConvertToVector256Int32WithTruncation
-                                         : NI_SSE2_ConvertToVector128Int32WithTruncation;
+            switch (simdSize)
+            {
+                case 16:
+                    intrinsic = NI_SSE2_ConvertToVector128Int32WithTruncation;
+                    break;
+                case 32:
+                    intrinsic = NI_AVX_ConvertToVector256Int32WithTruncation;
+                    break;
+                case 64:
+                    intrinsic = NI_AVX512F_ConvertToVector512Int32WithTruncation;
+                    break;
+                default:
+                    unreached();
+            }
 
             op1     = impSIMDPopStack(retType);
             retNode = gtNewSimdHWIntrinsicNode(retType, op1, intrinsic, simdBaseJitType, simdSize);
@@ -1018,12 +1031,26 @@ GenTree* Compiler::impSpecialIntrinsic(NamedIntrinsic        intrinsic,
 
         case NI_Vector128_ConvertToSingle:
         case NI_Vector256_ConvertToSingle:
+        case NI_Vector512_ConvertToSingle:
         {
             assert(sig->numArgs == 1);
 
             if (simdBaseType == TYP_INT)
             {
-                intrinsic = (simdSize == 32) ? NI_AVX_ConvertToVector256Single : NI_SSE2_ConvertToVector128Single;
+                switch (simdSize)
+                {
+                    case 16:
+                        intrinsic = NI_SSE2_ConvertToVector128Single;
+                        break;
+                    case 32:
+                        intrinsic = NI_AVX_ConvertToVector256Single;
+                        break;
+                    case 64:
+                        intrinsic = NI_AVX512F_ConvertToVector512Single;
+                        break;
+                    default:
+                        unreached();
+                }
 
                 op1     = impSIMDPopStack(retType);
                 retNode = gtNewSimdHWIntrinsicNode(retType, op1, intrinsic, simdBaseJitType, simdSize);