106 PCWorld DECEMBER 2019FEATURE HDMI VS. DISPLAYPORT
shielding required), there isn’t
a spec for the materials used
in the cable’s construction.
Hence, HDMI signals can also
be run over CAT5 or CAT6
cable (with a maximum
resolution of 1080p), or over
fiber-optic cable, according
to HDMI Licensing LLC. Active
cables (go.pcworld.com/
acbl) with signal-booster
circuitry, meanwhile, can be
longer and thinner (up to
130 feet, compared to 65
feet for passive cables).
Thinner cables are less likely
to fail when forced to make
hard bends.
That’s all great, but it
does muddy the waters a bit
for users as to which cables
will work with which devices.
There is a testing and
certification program (go.
pcworld.com/ctpg) if you
want a logo, but an overbuilt
cable from the early days will
quite likely work with the
more recent standards;
i.e., higher resolutions and
color depths.
There are currently three
bandwidth standards and logos
you might see, with a variant ofRESOLUTION (FPS) CHROMACOLOR BIT
DEPTHEFF. DATA
RATE SPEED
5K/48-60p 4:2:0/4:2:2 8, 10 or 12 20.05Gbps Ultra
4:4:4/RGB 8 20.05Gbps Ultra
44:4:4/RGB 10 5.06Gbps Ultra
4:4:4/RGB 12 30.07Gbps Ultra
5K/100-120p 4:2:0/4:2:2 8, 10 or 12 40.1Gbps Ultra
4:4:4/RGB 8 40.1Gbps Ultra
4:4:4/RGB 10 50.12Gbps Ultra#
4:4:4/RGB 128 60.14Gbps Ultra#
8K/24-30p 4:2:0/4:2:2 10 or 12 32.08Gbps Ultra
4:4:4/RGB 10 40.1Gbps Ultra
4:4:4/RGB 12 48.11Gbps Ultra
8K/48-60p 4:2:0* 1o 40.1Gbps Ultra
4:2:0* 12 48.11Gbps Ultra
4:2:0/4:2:2 8, 10 or 12 64.15Gbps Ultra#
4:4:4/RGB 10 80.19Gbps Ultra#
4:4:4/RGB 12 96.23Gbps Ultra#
8K/100-120p 4:2:0/4:2:2 10 or 12 128.3Gbps Ultra#
10K/24-30p 4:2:0/4:2:2 10 or 12 40.1Gbps Ultra
4:4:4/RGB 10 350.12Gbps Ultra#
4:4:4/RGB 12 60.14Gbps Ultra#
10K/48-60p 4:2:0/4:2:2 10 or 12 80.19Gbps Ultra#
4:4:4/RGB 10 100.24Gbps Ultra#
4:4:4/RGB 12 120.29Gbps Ultra#
10K/100-120p 4:2:0* 10 100.24Gbps Ultra#
4:2:0* 12 120.29Gbps Ultra#HDMI BANDWIDTHS
Continued from previous page* YCBCR 4:2:0 SAMOPER ATE WITHIN 48GBPS LINK. NOTE: HDMPLING MODE (Y420VDB) # DISPLAY STREAMI 2.1 SUPPORTS 8-, 10-, 12- & 16-BIT CO COMPRESSION (DSC) AUTOLOR OPTIOMNS, WATICALLY APPLIED TO ITH SUPPORT FOR
STATIC AND DYNAMIC HDR