This is the improved version of the x264 HD Benchmark 3.0 benchmark which had become a standard CPU benchmark for Tech ARP as well as many other hardware enthusiasts.

The new x264 HD Benchmark 4.0 ups the ante by using the latest r1913 x264 encoder as well as other changes under the hood. This makes the x264 HD Benchmark 4.0 the new best tool for testing the full capabilities of modern multi-core, multi-threaded processors.

Do note that due to the changes, the results from x264 HD Benchmark 4.0 are NOT comparable with results from older versions of the benchmark.

In addition to the release of the benchmark, we will be compiling benchmark results for this new version. So please contribute your new benchmark results to this project!

Changelog:
8x8 and 4x4 adaptive spatial transform
Adaptive B-frame placement
B-frames as references / arbitrary frame order
CAVLC/CABAC entropy coding
Custom quantization matrices
Intra: all macroblock types (16x16, 8x8, 4x4, and PCM with all predictions)
Inter P: all partitions (from 16x16 down to 4x4)
Inter B: partitions from 16x16 down to 8x8 (including skip/direct)
Interlacing (MBAFF)
Multiple reference frames
Ratecontrol: constant quantizer, constant quality, single or multipass ABR, optional VBV
Scenecut detection
Spatial and temporal direct mode in B-frames, adaptive mode selection
Parallel encoding on multiple CPUs
Predictive lossless mode
Psy optimizations for detail retention (adaptive quantization, psy-RD, psy-trellis)
Zones for arbitrarily adjusting bitrate distribution

Program Information Category: Benchmarks Type: Free Version: 4.0 Size: 34MB Works on: Windows Product page: here