diff --git a/bench/buffered_crc32_bench.rb b/bench/buffered_crc32_bench.rb
deleted file mode 100644
index 4af2cd7..0000000
--- a/bench/buffered_crc32_bench.rb
+++ /dev/null
@@ -1,55 +0,0 @@
-require "bundler"
-Bundler.setup
-
-require "benchmark"
-require "benchmark/ips"
-require_relative "../lib/zip_kit"
-
-n_bytes = 5 * 1024 * 1024
-r = Random.new
-bytes = (0...n_bytes).map { r.bytes(1) }
-buffer_sizes = [
-  1,
-  256,
-  512,
-  1024,
-  8 * 1024,
-  16 * 1024,
-  32 * 1024,
-  64 * 1024,
-  128 * 1024,
-  256 * 1024,
-  512 * 1024,
-  1024 * 1024,
-  2 * 1024 * 1024
-]
-
-Benchmark.ips do |x|
-  x.config(time: 5, warmup: 2)
-  buffer_sizes.each do |buf_size|
-    x.report "Single-byte <<-writes of #{n_bytes} using a #{buf_size} byte buffer" do
-      crc = ZipKit::StreamCRC32.new
-      buf = ZipKit::WriteBuffer.new(crc, buf_size)
-      bytes.each { |b| buf << b }
-      crc.to_i
-    end
-  end
-  x.compare!
-end
-
-__END__
-
-Comparison:
-Single-byte <<-writes of 5242880 using a 262144 byte buffer:        1.0 i/s
-Single-byte <<-writes of 5242880 using a 65536 byte buffer:        0.9 i/s - 1.00x  slower
-Single-byte <<-writes of 5242880 using a 32768 byte buffer:        0.9 i/s - 1.00x  slower
-Single-byte <<-writes of 5242880 using a 16384 byte buffer:        0.9 i/s - 1.01x  slower
-Single-byte <<-writes of 5242880 using a 524288 byte buffer:        0.9 i/s - 1.01x  slower
-Single-byte <<-writes of 5242880 using a 8192 byte buffer:        0.9 i/s - 1.01x  slower
-Single-byte <<-writes of 5242880 using a 256 byte buffer:        0.9 i/s - 1.01x  slower
-Single-byte <<-writes of 5242880 using a 131072 byte buffer:        0.9 i/s - 1.01x  slower
-Single-byte <<-writes of 5242880 using a 1024 byte buffer:        0.9 i/s - 1.02x  slower
-Single-byte <<-writes of 5242880 using a 512 byte buffer:        0.9 i/s - 1.02x  slower
-Single-byte <<-writes of 5242880 using a 2097152 byte buffer:        0.9 i/s - 1.05x  slower
-Single-byte <<-writes of 5242880 using a 1048576 byte buffer:        0.9 i/s - 1.06x  slower
-Single-byte <<-writes of 5242880 using a 1 byte buffer:        0.8 i/s - 1.25x  slower