Optoma GT1080HDR vs Optoma GT2100HDR

Bold marks the better figure where both are stated to the same standard. “—” means the manufacturer doesn't state it.

Optoma GT1080HDROptoma GT2100HDR
Display system
Imaging technologyDLPDLP
Technology brandDLP—
Number of imaging devices11
Chip / panel diagonal0.65 in—
Native aspect ratio16:916:9
Native resolution1920 × 10801920 × 1080
Colour wheel segments6 segments (RYGCWB)—
Optics
Throw ratio0.49:10.5:1
Projection distance table60″: 0.66 m · 80″: 0.88 m · 100″: 1.1 m · 120″: 1.33 m · 150″: 1.66 m · 200″: 2.21 m · 300″: 3.31 m36″: 0.4 m · 40″: 0.4 m · 50″: 0.5 m · 60″: 0.7 m · 70″: 0.8 m · 80″: 0.9 m · 90″: 1 m · 100″: 1.1 m · 120″: 1.3 m · 150″: 1.6 m · 180″: 2 m · 200″: 2.2 m · 250″: 2.7 m · 292″: 3.2 m
Zoom typeNoneNone
FocusManualManual
Vertical lens shift0%—
Horizontal lens shift0%—
Motorized lens shiftNo—
Fixed offset116%116%
Focal length7.42 mm7.51 mm
F-number2.8—
Interchangeable lensNoNo
Image size range36.2–308 in36–292 in
Vertical keystone-40–40°-15–15°
Horizontal keystone—-15–15°
Corner / warp correction—4pt
Light source
Light source typeLampLaser (phosphor)
Light source detail—DuraCore laser
Lamp wattage240 W—
Light source lifeBright: 4,000 h · Dynamic: 12,000 h · Eco: 10,000 h · Eco plus: 15,000 hRated: 30,000 h
Cool-down time90 s10 s
Brightness
ISO light output3,800 lm—
Claimed brightness (non-standard)—4,200
Claimed brightness unit—Unspecified
Brightness uniformity (centre-to-corner)70%75%
Contrast & black level
Dynamic contrast50,000:12,000,000:1
Colour
Bit depth / 'number of colours'30 bit30 bit
Calibration & picture control
Colour management system6-axis—
ISF certifiedYes—
HDR
HDR formatsHDR10HDR10, HLG
Motion & gaming
Max refresh rate1920×1080: 120 Hz · 3840×2160: 60 Hz1920×1080: 120 Hz
Input lag (rated)1920×1080 @ 120 Hz: 8.4 ms · 1920×1080 @ 60 Hz: 16 ms1920×1080 @ 60 Hz: 17 ms · 1920×1080 @ 120 Hz: 8.6 ms · 3840×2160 @ 60 Hz: 17 ms
Audio
Speaker power10 W15 W
Speaker count11
Audio channelsMonoMono
Audio outputs3.5 mm3.5 mm
Inputs, control & connectivity
Max input signal3840 × 21603840 × 2160
HDMI port count22
HDMI ports (feature-level)HDMI 1: HDMI 2.0, HDCP 2.2; HDMI 2 / MHL: HDMI 1.4, HDCP 2.2HDMI 1: HDMI 2.0; HDMI 2: HDMI 2.0
Audio input terminals3.5 mm—
Horizontal scan frequency15.38–91.15 kHz15–140 kHz
Vertical scan frequency50–85 Hz24–120 Hz
VGA inputYes—
RS-232YesYes
LAN control—Yes
Control ecosystem drivers—Crestron
Ethernet—Yes
Firmware / software
Smart OS—None
3D
3D supportYesYes
3D sync methodDLP-LinkDLP-Link
3D formatsFrame packing, Side-by-side, Top-bottom, Frame sequentialSide-by-side, Top-bottom, Frame sequential, Frame packing
Setup automation
Auto keystone—Yes
Acoustic noise
Fan noise (sound pressure)Min: 26 dB(A) · Max: 28 dB(A)Min: 29 dB(A) · Max: 36 dB(A)
Environment & power
Operating temperature5–40°C0–40°C
Operating humidity10–85%RH—
Altitude / high-altitude mode3,000 m2,500 m
High-altitude modeYesYes
Operating orientationsTable, Ceiling, Rear360°
Rated voltage100–240 V100–240 V
Rated frequency50–60 Hz50–60 Hz
Power consumption (max)285 W173 W
Power consumption by modeBright typical: 230 W · Eco typical: 190 WMin: 119 W · Max: 173 W
Standby power0.5 W0.5 W
Power supply—External brick
Physical & installation
Width316 mm274 mm
Depth244 mm216 mm
Height115 mm114 mm
Weight3 kg3 kg
Ingress protection—IP6X
Safety & compliance
Photobiological risk groupRG2RG2
Laser product class—Class 1 (Risk Group 2)
Safety & market certificationsFCC, CEFCC
Support & ownership
Warranty🇺🇸 US 1 yr🇺🇸 US 1 yr
Light-source warranty90 days (limited)5 years or 12,000 hours
User manualhttps://region-resource.optoma.com/products/import/Documents/efc40cbb-0f25-4fc5-8329-7ad5c3071097.pdfhttps://region-resource.optoma.com/products/import/Documents/02387d20-4b12-4d04-97e4-be316b803cf2.pdf
In the box
Box contentsProjector, Remote, Batteries, Power cord, User manualPower cord, Remote, Batteries, Quick start guide
Remote typeIRIR