diff --git a/proto-newpow/class-v5/run.sh b/proto-newpow/class-v5/run.sh
new file mode 100755
index 000000000..6500c3d7b
--- /dev/null
+++ b/proto-newpow/class-v5/run.sh
@@ -0,0 +1,18 @@
+#!/usr/bin/env bash
+# Class v5 against class v4 on one card (docs/design/class-v5-stored-state.md section 7). Run in proto-newpow/class-v5
+# on the pod with the two exported packs beside it: packs/v4-genesis (control) and packs/v5-genesis (leaves.bin inside).
+#   bash run.sh [sm_89] > run.log 2>&1
+set -u
+ARCH=${1:-sm_89}
+export PATH=/usr/local/cuda/bin:$PATH
+nvidia-smi --query-gpu=name,driver_version,power.limit --format=csv,noheader
+for pack in v4-genesis v5-genesis; do
+  ( cd packs/$pack && nvcc -O3 -std=c++17 -arch=$ARCH -Xcompiler -pthread -I. -o bench ../../bench.cu kernel.cu 2>&1 | grep -v "^$" ; echo "nvcc $pack rc ${PIPESTATUS[0]}" )
+done
+for pass in 1 2; do
+  for pack in v4-genesis v5-genesis; do
+    echo "=== pass $pass $pack $(date -u +%H:%M:%SZ)"
+    ( cd packs/$pack && ./bench --batches 10 --power-seconds 20 )
+  done
+done
+echo "=== done $(date -u +%H:%M:%SZ)"