Polycom PVX Release Note page 10

Release Notes
Polycom PVX Version 8.0.2
H.263 People Video
10
H.264 People Video Transmit with Sharper Image
Processor
<128
Intel Pentium 4 VGA/4@15
1.5 GHz
Intel Pentium 4 VGA/4@30
1.8 GHz
Intel Pentium 4 VGA/4@30
2.0 GHz
Intel Pentium M
1.4 GHz
AMD Athlon XP
1800+
Intel Pentium 4 VGA/4@30
2.4 GHz
Intel Pentium 4 VGA/4@30
3.2 GHz
Intel Pentium 4
2.8 GHz (HTT)
Intel Pentium 4 VGA/4@30
3.6 GHz
Intel Pentium 4
3.4 GHz (HTT)
In the tables above:
• VGA/4 is 320x240 (or CIF/SIF for interop)
• VGA/2 is 320x480 (or 2CIF/2SIF for interop)
• VGA is 640x480 (or 4CIF/4SIF for interop)
• Processors are Pentium 4 or Pentium 4 with HTT
H.263+ video is scaled in a similar way to H.264. However, it is not as efficient
and it is not used at any call rate unless H.264 is disabled on PVX or the far site
does not support H.264.
For example:
• On a 2.4 GHz Pentium 4, PVX will support 1920 kbps VGA/4@30fps
• On a 3.6 GHz Pentium 4, PVX will support 1920 kbps VGA@30fps
Call Rates (kbps)
128 - <256 256 - <512
VGA/4@15 VGA/4@15
VGA/4@30 VGA/4@30
VGA/2@15 VGA/2@15
VGA/2@15 VGA/2@15
VGA/2@15 VGA@15
VGA/2@15 VGA@15
Maximum
People
512 - 1920
Video Rate
N/A 384 kbps
N/A 384 kbps
VGA/2@15 1920 kbps
VGA/2@15 1920 kbps
VGA@15 1920 kbps
VGA@30 1920 kbps
3725-22754-006/A