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Panasonic VIERA AX902 vs Panasonic VIERA VT20

Every spec side by side, from each maker's published figures.

Better figure, where one is clearly better

PanasonicVIERA AX902PanasonicVIERA VT20
Overview
Released20142010
Display
PanelLED LCDPlasma
Panel detailPanasonic specifies an LED LCD panel with Local Dimming Ultra. AVForums identifies the reviewed 55-inch panel as IPS with full-array direct backlighting and 128 zones; that zone count is not claimed for the 65-inch size. Panasonic's 3000 Hz Backlight Scanning claim is not a native refresh rate.Panasonic's UK TX-P50VT20B manual specifies a Full HD NeoPDP plasma panel. Its marketed 600 Hz sub-field drive is not a published native image refresh rate.
Resolution3840 × 2160 (4K)1920 × 1080 (Full HD)
HDR formatsNoneNone
Picture processingStudio Master Drive, Local Dimming Ultra, Studio Master Colour, 4K Pure Direct and Intelligent Frame Creation Pro. The 55-inch zone count is reported by AVForums, not the UK manual.NeoPDP with Infinite Black Pro, Intelligent Frame Creation and 24p Smooth Film. Active-shutter frame-sequential Full HD 3D is supported; the 600 Hz sub-field figure describes panel drive, not native refresh.
Picture modesDynamic, Normal, Cinema, THX Cinema, THX Bright Room, True Cinema, Monitor, Custom, Professional 1 and Professional 2; BT.1886 gamma is available.Dynamic, Normal, Cinema, THX, Game, Photo and two Professional modes when ISFccc is enabled; True Cinema replaces THX for 3D and some other inputs.
Motion handlingHDTVTest found clear motion with Intelligent Frame Creation enabled but mild 24p judder; AVForums preferred turning interpolation off for films.AVForums found very low gaming lag but criticised missing film-cadence detection for interlaced sources; What Hi-Fi? preferred Intelligent Frame Creation off for films.
Viewing angleThe reviewed 55-inch IPS panel retained contrast and colour better off-axis than many contemporary VA LCDs according to HDTVTest.–
Sizes
Sizes55, 65″50″
Largest size65″50″
Gaming
HDMI ports4 (0 HDMI 2.1 at 4K 120 Hz+)4 (0 HDMI 2.1 at 4K 120 Hz+)
Variable refresh rateNoneNone
HDMI detailFour HDMI inputs support 4K and 3D; HDMI2 supports ordinary Audio Return Channel. The UK manual also lists DisplayPort for 4K, one SCART, component and composite inputs, CI+ and an SD card slot. HDTVTest confirmed full HDMI 2.0 bandwidth and HDCP 2.2 on the reviewed 55-inch unit.Four HDMI 1.4 inputs support 3D; HDMI2 supports ordinary Audio Return Channel. HDAVI Control 5, two SCART inputs, component input and D-sub PC input are specified.
Input lagAVForums measured 90 ms in Game mode on the 55-inch set; HDTVTest measured 87 ms on its separate 55-inch sample.–
Smart TV and sound
Smart TV platformmy Home ScreenVIERA CAST
ProcessorQuad Core Pro5–
Speakers18 W30 W
Wi-FiBuilt-in dual-band IEEE 802.11a/b/g/n–
BluetoothBluetooth 3.0 for accessories–
Speaker detailPanasonic specifies 4 W + 4 W stereo drivers and a 10 W woofer.Two 160 × 40 mm full-range drivers and one 100 mm woofer, rated 10 W + 10 W + 10 W.
Audio features3.5 mm headphone socket and Bluetooth accessory support.CONEQ equalisation, V-Audio surround modes and Dolby Digital optical output; 3.5 mm headphone socket.
CastingPanasonic's my Home Screen platform supports network media, TV Anywhere, screen mirroring and streaming apps; service availability varies over time.DLNA media playback and VIERA CAST online services; the supplied USB wireless LAN adaptor provides Wi-Fi rather than an internal radio.
TV tunersUK DVB-S/S2 Freesat, DVB-T/T2 Freeview HD and PAL I analogue tuners; two satellite dish inputs.UK Freesat HD DVB-S/S2 satellite, Freeview HD DVB-T2, DVB-T and PAL I analogue UHF tuners.
USBTwo USB 2.0 ports and one USB 3.0 port support media and recording to a registered drive; SD card slot.Two USB 2.0 ports support media and encrypted recording to a registered external USB hard drive; SD card slot for media.
EthernetRJ45 10/100/1000 Ethernet for network services and local sharing.RJ45 10BASE-T/100BASE-TX for network services and DLNA.
Optical audio outFibre-optic PCM, Dolby Digital and DTS output.Fibre-optic PCM and Dolby Digital output.
Design and power
SizeTV only: 55-inch 1238 × 741 × 59 mm and 26 kg; 65-inch 1457 × 864 × 60 mm and 35 kg. With pedestal: 55-inch 1238 × 740 × 283 mm and 40 kg; 65-inch 1457 × 863 × 356 mm and 52 kg.TX-P50VT20B TV only: 1224 × 771 × 90 mm and 27.5 kg. With supplied pedestal: 1224 × 810 × 335 mm and 30.5 kg.
StandSupplied rear-weighted pedestal. Panasonic lists 400 × 400 mm wall mounting holes.Supplied pedestal; optional TY-WK4P1RW wall bracket with 400 × 300 mm mounting holes.
Power usePanasonic product fiche on-mode average: 210 W for 55 inches and 229 W for 65 inches; 0.30 W standby and off mode for both.Panasonic rated 425 W; standby 0.40 W, or 33 W during monitor-output recording.
Energy classC for UK 55-inch and B for UK 65-inch under the historical Panasonic product fiche.–
ColoursBlack glass front with silver edge trim.Dark metallic-brown bezel.
In the boxStandard and touchpad remotes, two pairs of passive 3D glasses, pedestal, mains lead and instructions. Panasonic's 2014 UK model list and manual confirm 55- and 65-inch AX902B sets; the distinct 85-inch TX-85X942B is excluded. Exact first-sale month remains unconfirmed; contemporary UK coverage places availability in November 2014.Remote, two R6 batteries, pedestal, wireless LAN adaptor and extension, two pairs of TY-EW3D10E 3D glasses, mains lead, cable clamper, ferrite cores and instructions. The dated UK launch coverage establishes 2010 availability but does not reliably establish the first sale month; only the maker-confirmed 50-inch UK configuration is listed here.

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