diff --git a/.github/workflows/build-image.yml b/.github/workflows/build-image.yml
index bf809cd43..e3a9526a4 100644
--- a/.github/workflows/build-image.yml
+++ b/.github/workflows/build-image.yml
@@ -86,6 +86,12 @@ jobs:
         #   platforms: linux/amd64
         #   runner: [self-hosted, linux/amd64, rocm]
         #   build_args: "NUM_MAKE_JOBS=16"
+        - name: rocm6.3
+          dockerfile: rocm6.3.x
+          tags: superbench/main:rocm6.3
+          platforms: linux/amd64
+          runner: [self-hosted, linux/amd64, rocm]
+          build_args: "NUM_MAKE_JOBS=16"
     steps:
       - name: Checkout
         uses: actions/checkout@v2
diff --git a/dockerfile/rocm6.3.x.dockerfile b/dockerfile/rocm6.3.x.dockerfile
new file mode 100644
index 000000000..202476a5c
--- /dev/null
+++ b/dockerfile/rocm6.3.x.dockerfile
@@ -0,0 +1,147 @@
+ARG BASE_IMAGE=rocm/pytorch-training:v25.6
+
+FROM ${BASE_IMAGE}
+
+# Base image: rocm/pytorch-training:v25.6
+# Pre-installed by base image:
+#   - Ubuntu: 22.04
+#   - Python: 3.10
+#   - ROCm: 6.3.4
+#   - openmpi: 4.0.7rc2
+#   - torch: 2.8.0a0+git7d205b2
+#   - rccl: 2.21.5.60304-76
+#   - hipblaslt: 0.15.0-8c69191d
+#   - transformer_engine: 1.14.0+2f85f5f2
+#   - flash_attention: 3.0.0.post1
+#   - cmake: 3.18.5
+#   - rocm-cmake: 0.14.0.60304-76
+#   - amd-smi: 25.1.0+8dc45db
+# Added by this Dockerfile:
+#   - Docker Client: 27.5.1
+#   - mlc: v3.12
+#   - OFED: 24.10-1.1.4.0 LTS
+
+# Fix base image botocore/urllib3 incompatibility:
+# Base image ships botocore 1.22.12 (expects urllib3 1.x) with urllib3 2.6.3,
+# causing "cannot import name 'DEFAULT_CIPHERS' from 'urllib3.util.ssl_'".
+# Upgrading botocore/boto3 to versions compatible with urllib3 2.x.
+RUN python3 -m pip install --upgrade botocore boto3
+
+LABEL maintainer="SuperBench"
+
+ENV DEBIAN_FRONTEND=noninteractive
+RUN apt-get update && \
+    apt-get -q install -y --no-install-recommends  \
+    autoconf \
+    automake \
+    bc \
+    build-essential \
+    curl \
+    dmidecode \
+    git \
+    hipify-clang \
+    iproute2 \
+    jq \
+    libaio-dev \
+    libboost-program-options-dev \
+    libcap2 \
+    libcurl4-openssl-dev \
+    libnuma-dev \
+    libpci-dev \
+    libssl-dev \
+    libtinfo5 \
+    libtool \
+    lshw \
+    net-tools \
+    numactl \
+    openssh-client \
+    openssh-server \
+    pciutils \
+    python3-mpi4py \
+    rsync \
+    sudo \
+    util-linux \
+    vim \
+    wget \
+    && \
+    rm -rf /tmp/*
+
+ARG NUM_MAKE_JOBS=64
+
+# Install Docker
+ENV DOCKER_VERSION=27.5.1
+RUN cd /tmp && \
+    wget -q https://download.docker.com/linux/static/stable/x86_64/docker-${DOCKER_VERSION}.tgz -O docker.tgz && \
+    tar --extract --file docker.tgz --strip-components 1 --directory /usr/local/bin/ && \
+    rm docker.tgz
+
+# Update system config
+RUN mkdir -p /root/.ssh && \
+    touch /root/.ssh/authorized_keys && \
+    mkdir -p /var/run/sshd && \
+    sed -i "s/[# ]*PermitRootLogin prohibit-password/PermitRootLogin yes/" /etc/ssh/sshd_config && \
+    sed -i "s/[# ]*PermitUserEnvironment no/PermitUserEnvironment yes/" /etc/ssh/sshd_config && \
+    sed -i "s/[# ]*Port.*/Port 22/" /etc/ssh/sshd_config && \
+    echo "* soft nofile 1048576\n* hard nofile 1048576" >> /etc/security/limits.conf && \
+    echo "root soft nofile 1048576\nroot hard nofile 1048576" >> /etc/security/limits.conf
+
+
+# Get Ubuntu version and set as an environment variable
+RUN echo "Ubuntu version: $(lsb_release -r -s)"
+ARG UBUNTU_VERSION=22.04
+
+# Install OFED
+ENV OFED_VERSION=24.10-1.1.4.0
+# Check if ofed_info is present and has a version
+RUN if ! command -v ofed_info >/dev/null 2>&1; then \
+    echo "OFED not found. Installing OFED..."; \
+    cd /tmp && \
+    wget -q http://content.mellanox.com/ofed/MLNX_OFED-${OFED_VERSION}/MLNX_OFED_LINUX-${OFED_VERSION}-ubuntu${UBUNTU_VERSION}-x86_64.tgz && \
+    tar xzf MLNX_OFED_LINUX-${OFED_VERSION}-ubuntu${UBUNTU_VERSION}-x86_64.tgz && \
+    PATH=/usr/bin:${PATH} MLNX_OFED_LINUX-${OFED_VERSION}-ubuntu${UBUNTU_VERSION}-x86_64/mlnxofedinstall --user-space-only --without-fw-update --force --all && \
+    rm -rf MLNX_OFED_LINUX-${OFED_VERSION}* ; \
+    fi
+
+ENV ROCM_PATH=/opt/rocm
+
+# Target GPU architectures for ROCm builds (space-separated)
+ENV AMDGPU_TARGETS="gfx908 gfx90a gfx942"
+
+# Use pre-installed OpenMPI from base image at /opt/ompi
+ENV MPI_HOME=/opt/ompi
+
+# Install Intel MLC
+RUN cd /tmp && \
+    wget -q https://downloadmirror.intel.com/866182/mlc_v3.12.tgz -O mlc.tgz && \
+    tar xzf mlc.tgz Linux/mlc && \
+    cp ./Linux/mlc /usr/local/bin/ && \
+    rm -rf ./Linux mlc.tgz
+
+ENV PATH="/opt/ompi/bin:/opt/superbench/bin:/usr/local/bin/:/opt/rocm/hip/bin/:/opt/rocm/bin/:${PATH}" \
+    LD_LIBRARY_PATH="/opt/ompi/lib:/usr/lib/x86_64-linux-gnu/:/usr/local/lib/:/opt/rocm/lib:${LD_LIBRARY_PATH}" \
+    SB_HOME=/opt/superbench \
+    SB_MICRO_PATH=/opt/superbench \
+    ANSIBLE_DEPRECATION_WARNINGS=FALSE \
+    ANSIBLE_COLLECTIONS_PATH=/usr/share/ansible/collections
+
+RUN echo PATH="$PATH" > /etc/environment && \
+    echo LD_LIBRARY_PATH="$LD_LIBRARY_PATH" >> /etc/environment && \
+    echo SB_MICRO_PATH="$SB_MICRO_PATH" >> /etc/environment
+
+RUN python3 -m pip install --upgrade pip wheel setuptools==65.7 && \
+    python3 -c "import pkg_resources" || python3 -m pip install setuptools
+
+WORKDIR ${SB_HOME}
+
+ADD third_party third_party
+# perftest_rocm6.patch skipped — upstream perftest already includes the equivalent changes
+RUN make RCCL_HOME=/opt/rocm ROCBLAS_BRANCH=release-staging/rocm-rel-6.3 HIPBLASLT_BRANCH=release-staging/rocm-rel-6.3 ROCM_VER=rocm-5.5.0 -C third_party rocm -o cpu_hpl -o cpu_stream -o megatron_lm -o rocm_megatron_lm
+RUN cd third_party/Megatron/Megatron-DeepSpeed && \
+    git apply ../megatron_deepspeed_rocm6.patch
+
+ADD . .
+ENV USE_HIP_DATATYPE=1
+ENV USE_HIPBLAS_COMPUTETYPE=1
+RUN python3 -m pip install --no-build-isolation .[amdworker]  && \
+    CXX=/opt/rocm/bin/hipcc make cppbuild  && \
+    make postinstall
diff --git a/third_party/Makefile b/third_party/Makefile
index 2a09f5990..6f0a4508b 100755
--- a/third_party/Makefile
+++ b/third_party/Makefile
@@ -134,9 +134,17 @@ ifneq (,$(wildcard fio/Makefile))
 endif
 
 # Build rccl-tests from commit 46375b1 of default branch.
+# If AMDGPU_TARGETS env var is set (space-separated, e.g. "gfx908 gfx90a gfx942"),
+# explicit --offload-arch flags and include paths are used.
+# Otherwise, the original build command is used (relies on hipcc auto-detection).
+ROCM_OFFLOAD_ARCH_FLAGS := $(foreach arch,$(AMDGPU_TARGETS),--offload-arch=$(arch))
 rocm_rccl_tests: sb_micro_path
 ifneq (, $(wildcard rccl-tests/Makefile))
+ifdef AMDGPU_TARGETS
+	cd ./rccl-tests && make MPI=1 MPI_HOME=$(MPI_HOME) HIPCUFLAGS="-std=c++14 -O3 $(ROCM_OFFLOAD_ARCH_FLAGS) -I$(ROCM_PATH)/include -I$(ROCM_PATH)/include/rccl -I$(ROCM_PATH)/include/hip -DMPI_SUPPORT -I$(MPI_HOME)/include -I$(MPI_HOME)/include/mpi" -j
+else
 	cd ./rccl-tests && make MPI=1 MPI_HOME=$(MPI_HOME) -j
+endif
 	cp -v -r ./rccl-tests/build/* $(SB_MICRO_PATH)/bin/
 endif
 
@@ -168,6 +176,7 @@ rocm_hipblaslt: sb_micro_path
 # Build hipBusBandwidth.
 # HIP is released with rocm, like rocm-4.2.0 and so on.
 # The version we use is the released tag which is consistent with the rocm version in the environment or docker.
+
 rocm_bandwidthTest: sb_micro_path
 	git clone -b ${ROCM_VER} https://github.com/ROCm-Developer-Tools/HIP.git
 	cd ./HIP/samples/1_Utils/hipBusBandwidth/ && mkdir -p build && cd build && cmake .. && make