Broadcast Developer

Matrox M264

Name: Matrox M264
Brand: Matrox

H.264 codec cards with XAVC and AVC-Ultra certification for broadcast developers

M264 cards encode, decode and transcode H.264 in hardware in real time or faster. They are certified for Sony XAVC and Panasonic AVC-Ultra, making them suitable for production and archive systems. Models S1 to S4 differ in the number of independent codec units.

H.264XAVCAVC-Ultra

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Key features

1 to 4 independent codec units per card
H.264 up to High 4:2:2 Intra, level 5.2, 4:2:0 8-bit and 4:2:2 10-bit
Certified: Sony XAVC and Panasonic AVC-Ultra
Low-latency encoding with a <20 ms target (Matrox)
S4: up to 4× 2160p60 4:2:2 10-bit or 32× 1080p60 4:2:0

Applications

Capture and recording in XAVC

Transcoding in production and archives

Video servers and replay

Technical specifications

Codec	H.264 Baseline to High 4:2:2 Intra, level 5.2; interlaced and progressive
Bitrate	Up to 500 Mbps (CABAC) / 800 Mbps (CAVLC) per unit
Latency (Matrox)	Encoding with a <20 ms target (I or IP GOP)
Certifications	Sony XAVC (Intra Class 300/480, 4K Long GOP 4:2:2), Panasonic AVC-Ultra
Density (S1 → S4)	2160p60 4:2:2 10-bit: 1→4; 1080p60 Long GOP 4:2:2: 5→20; 1080p60 4:2:0: 8→32
Processing	Deinterlacing, scaling up to UHD, up to 1.5 Gpixel/s per M264

Models

M264 S1	1 codec unit, PCIe x8 Gen2, half length
M264 S2	2 codec units, PCIe x8 Gen3
M264 S3	3 codec units, PCIe x16 Gen3
M264 S4	4 codec units, PCIe x16 Gen3, full length

Source: official Matrox documentation, verified 2026-10-12. The manufacturer's current datasheet always applies to a project.