diff --git a/eng/pipelines/coreclr/perf-non-wasm-jobs.yml b/eng/pipelines/coreclr/perf-non-wasm-jobs.yml
index 7c409fb265e417..66d39ef015922e 100644
--- a/eng/pipelines/coreclr/perf-non-wasm-jobs.yml
+++ b/eng/pipelines/coreclr/perf-non-wasm-jobs.yml
@@ -45,7 +45,7 @@ jobs:
       platforms:
       - linux_x64
       jobParameters:
-        buildArgs: -s mono+libs+host+packs -c $(_BuildConfig) /p:BuildMonoAOTCrossCompiler=true /p:MonoLibClang="/usr/local/lib/libclang.so.16" /p:AotHostArchitecture=x64 /p:AotHostOS=linux
+        buildArgs: -s mono+libs+host+packs -c $(_BuildConfig) /p:MonoAOTEnableLLVM=true /p:MonoEnableLLVM=true /p:BuildMonoAOTCrossCompiler=true /p:MonoLibClang="/usr/local/lib/libclang.so.16" /p:AotHostArchitecture=x64 /p:AotHostOS=linux
         nameSuffix: AOT
         isOfficialBuild: false
         extraStepsTemplate: /eng/pipelines/common/upload-artifact-step.yml
diff --git a/eng/pipelines/coreclr/perf_slow.yml b/eng/pipelines/coreclr/perf_slow.yml
index 318bc25915d555..fdd4361e8d21e0 100644
--- a/eng/pipelines/coreclr/perf_slow.yml
+++ b/eng/pipelines/coreclr/perf_slow.yml
@@ -98,7 +98,7 @@ extends:
             platforms:
             - linux_arm64
             jobParameters:
-              buildArgs: -s mono+libs+host+packs -c $(_BuildConfig) /p:MonoAOTEnableLLVM=true /p:MonoBundleLLVMOptimizer=true /p:BuildMonoAOTCrossCompiler=true /p:MonoLibClang="/usr/local/lib/libclang.so.16" /p:AotHostArchitecture=arm64 /p:AotHostOS=linux
+              buildArgs: -s mono+libs+host+packs -c $(_BuildConfig) /p:MonoAOTEnableLLVM=true /p:MonoEnableLLVM=true /p:BuildMonoAOTCrossCompiler=true /p:MonoLibClang="/usr/local/lib/libclang.so.16" /p:AotHostArchitecture=arm64 /p:AotHostOS=linux
               nameSuffix: AOT
               isOfficialBuild: false
               extraStepsTemplate: /eng/pipelines/common/upload-artifact-step.yml
diff --git a/eng/pipelines/coreclr/templates/perf-job.yml b/eng/pipelines/coreclr/templates/perf-job.yml
index 8eef7bcffdcaaf..5dcd677e9c5fd6 100644
--- a/eng/pipelines/coreclr/templates/perf-job.yml
+++ b/eng/pipelines/coreclr/templates/perf-job.yml
@@ -102,7 +102,9 @@ jobs:
         extraSetupParameters: --architecture ${{ parameters.archType }} --wasmbundle $(librariesDownloadDir)/bin/wasm --javascriptengine ${{ parameters.javascriptEngine }} $(extraSetupParametersSuffix)
       ${{ if and(eq(parameters.runtimeType, 'wasm'), eq(parameters.codeGenType, 'AOT')) }}:
         extraSetupParameters: --architecture ${{ parameters.archType }} --wasmbundle $(librariesDownloadDir)/bin/wasm --wasmaot --javascriptengine ${{ parameters.javascriptEngine }} $(extraSetupParametersSuffix)
-      ${{ if and(eq(parameters.codeGenType, 'AOT'), ne(parameters.runtimeType, 'wasm')) }}:
+      ${{ if and(eq(parameters.codeGenType, 'AOT'), ne(parameters.runtimeType, 'wasm'), eq(parameters.archType, 'x64')) }}:
+        extraSetupParameters: --architecture ${{ parameters.archType }} --monoaot $(librariesDownloadDir)/bin/aot --llvm
+      ${{ if and(eq(parameters.codeGenType, 'AOT'), ne(parameters.runtimeType, 'wasm'), eq(parameters.archType, 'arm64')) }}: # Temporarily keep arm64 as non-llvm tagged until switch to 9.0
         extraSetupParameters: --architecture ${{ parameters.archType }} --monoaot $(librariesDownloadDir)/bin/aot
       ${{ if and(eq(parameters.runtimeType, 'coreclr'), ne(parameters.osSubGroup, '_musl')) }}:
         extraSetupParameters: --corerootdirectory $(Build.SourcesDirectory)/artifacts/tests/coreclr/${{ parameters.osGroup }}.${{ parameters.archType }}.Release/Tests/Core_Root --architecture ${{ parameters.archType }}
diff --git a/eng/testing/performance/microbenchmarks.proj b/eng/testing/performance/microbenchmarks.proj
index 394aa992d41d2d..309be61ffdb8b8 100644
--- a/eng/testing/performance/microbenchmarks.proj
+++ b/eng/testing/performance/microbenchmarks.proj
@@ -54,6 +54,13 @@
     <CoreRunArgument>--corerun $(BaseDirectory)/dotnet-mono/shared/Microsoft.NETCore.App/$(ProductVersion)/corerun</CoreRunArgument>
   </PropertyGroup>
 
+  <PropertyGroup Condition="'$(MonoAOT)' == 'true' and '$(AGENT_OS)' == 'Windows_NT'">
+    <HelixPreCommands>$(HelixPreCommands);%HELIX_CORRELATION_PAYLOAD%\monoaot\mono-aot-cross --llvm --version</HelixPreCommands>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(MonoAOT)' == 'true' and '$(AGENT_OS)' != 'Windows_NT'">
+    <HelixPreCommands>$(HelixPreCommands);$HELIX_CORRELATION_PAYLOAD/monoaot/mono-aot-cross --llvm --version</HelixPreCommands>
+  </PropertyGroup>
+
   <PropertyGroup Condition="'$(UseCoreRun)' == 'true'">
     <CoreRunArgument>--corerun $(CoreRun)</CoreRunArgument>
   </PropertyGroup>
@@ -124,7 +131,7 @@
     <FailOnTestFailure>false</FailOnTestFailure>
   </PropertyGroup>
 
-  <!-- 
+  <!--
     Partition the Microbenchmarks project, but nothing else
   -->
   <ItemGroup Condition="$(TargetCsproj.Contains('MicroBenchmarks.csproj'))">
diff --git a/eng/testing/performance/performance-setup.ps1 b/eng/testing/performance/performance-setup.ps1
index 8caea345a893dc..0865653e0eefe5 100644
--- a/eng/testing/performance/performance-setup.ps1
+++ b/eng/testing/performance/performance-setup.ps1
@@ -187,6 +187,7 @@ Write-PipelineSetVariable -Name 'UseBaselineCoreRun' -Value "$UseBaselineCoreRun
 Write-PipelineSetVariable -Name 'RunFromPerfRepo' -Value "$RunFromPerformanceRepo" -IsMultiJobVariable $false
 Write-PipelineSetVariable -Name 'Compare' -Value "$Compare" -IsMultiJobVariable $false
 Write-PipelineSetVariable -Name 'MonoDotnet' -Value "$UsingMono" -IsMultiJobVariable $false
+Write-PipelineSetVariable -Name 'MonoAOT' -Value "$MonoAOT" -IsMultiJobVariable $false
 Write-PipelineSetVariable -Name 'iOSLlvmBuild' -Value "$iOSLlvmBuild" -IsMultiJobVariable $false
 Write-PipelineSetVariable -Name 'iOSStripSymbols' -Value "$iOSStripSymbols" -IsMultiJobVariable $false
 
diff --git a/eng/testing/performance/performance-setup.sh b/eng/testing/performance/performance-setup.sh
index 1e25a46c39368e..c1607c5ab37cda 100755
--- a/eng/testing/performance/performance-setup.sh
+++ b/eng/testing/performance/performance-setup.sh
@@ -234,6 +234,7 @@ while (($# > 0)); do
       echo "  --latestdotnet                 --dotnet-versions will not be specified. --dotnet-versions defaults to LKG version in global.json "
       echo "  --dotnetversions               Passed as '--dotnet-versions <value>' to the setup script"
       echo "  --alpine                       Set for runs on Alpine"
+      echo "  --llvm                         Set LLVM for Mono runs"
       echo "  --iosmono                      Set for ios Mono/Maui runs"
       echo "  --iosnativeaot                 Set for ios Native AOT runs"
       echo "  --iosllvmbuild                 Set LLVM for iOS Mono/Maui runs"
@@ -509,6 +510,7 @@ Write-PipelineSetVariable -name "Kind" -value "$kind" -is_multi_job_variable fal
 Write-PipelineSetVariable -name "_BuildConfig" -value "$_BuildConfig" -is_multi_job_variable false
 Write-PipelineSetVariable -name "Compare" -value "$compare" -is_multi_job_variable false
 Write-PipelineSetVariable -name "MonoDotnet" -value "$using_mono" -is_multi_job_variable false
+Write-PipelineSetVariable -name "MonoAOT" -value "$monoaot" -is_multi_job_variable false
 Write-PipelineSetVariable -name "WasmDotnet" -value "$using_wasm" -is_multi_job_variable false
 Write-PipelineSetVariable -Name 'iOSLlvmBuild' -Value "$iosllvmbuild" -is_multi_job_variable false
 Write-PipelineSetVariable -Name 'iOSStripSymbols' -Value "$iosstripsymbols" -is_multi_job_variable false