EVS XT4K - Page 32

XNet Transfers
The maximum number of real-time channels between EVS servers through the SDTI ports
of the XT4K server are summarized in the following table.
The following tables take into account a field rate of 50.00 Hz, the resolution HD 1080i and
UHD-4K, without SLSM REC, and the maximum reference bandwidth of 240 MB/s on an
SDTI network of 3Gbps.
NOTE
The transfer speed in real-time for a single A/V stream is 10% lower compared
to the number of real-time transfers.
For example, a single transfer will be processed 18.3x faster than real-time for
Apple ProRes 422 LT.
Codec
Field
Rate
Video
Bitrate
(Mbps)
Block-
Based
Bandwidth
(MB/s)
RT
Transfers
(3G SDTI)
Apple ProRes 422 LT 50.00 Hz 85 11.7 20.4
AVC-Intra 100 50.00 Hz 111 14.8 14.4
XAVC-Intra HD 50.00 Hz 111 14.8 14.4
Avid DNxHD® 120 50.00 Hz 120 16.6 12.0
Apple ProRes 422 SQ 50.00 Hz 120 16.6 12.0
Avid DNxHD® 185 50.00 Hz 185 25.0 9.6
Apple ProRes 422 HQ 50.00 Hz 185 25.0 9.6
XAVC-Intra 4K 50.00 Hz 500 66.6 3.6
24 4. Software Specifications
EVS Broadcast Equipment SA Issue 15.2.A- June 2017