For starters, we are also introducing a new 1080p video clip with a tougher benchmark script to really stress the newer multi-core processors. To top it off, the x264 HD Benchmark is now capable of running in 64-bit mode, as well as 32-bit mode.
We also updated the benchmark with revision 2200 of the x264 encoder, and CPU-Z 1.60.1. The new x264 encoder supports the following features :
- Threaded lookahead
- 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
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