Optoma GT2000HDR vs BenQ TH671ST
Optoma GT2000HDR (#4, best budget) vs BenQ TH671ST (#5): in our Projectors for Golf Simulators scoring the Optoma GT2000HDR totals 8.7/10 and the BenQ TH671ST 8.2/10, the Optoma GT2000HDR leading on Reliability & Maintenance and Value and the BenQ TH671ST on Throw & Mounting Flexibility.
We may earn a commission when you buy through our links. Prices and availability shown are accurate as of Jul 18, 2026 and are subject to change; the merchant's price at purchase applies.
TopsFive comparison scores
Side by side
| Optoma GT2000HDR | BenQ TH671ST | |
|---|---|---|
| Price | $899 | $949 |
| Resolution | 1080p Full HD (4K HDR input) | 1080p Full HD |
| Rated Brightness | 3,500 lumens | 3,000 ANSI lumens |
| Throw Ratio | 0.496:1 (fixed short throw) | 0.69–0.83:1 (short throw) |
| Lowest Input Lag | 8.6 ms (1080p/120Hz) | 16.7 ms (1080p/60Hz) |
| Light Source | DuraCore laser | Lamp (DLP) |
| Light Source Life | 30,000 hours | 4,000–15,000 hours (LampSave) |
| Zoom & Adjustment | Fixed lens, digital keystone | 1.2x optical zoom, auto vertical keystone |
| 100" Image From | About 3.6 ft | About 4.9 ft |
How they differ in real use
Built from our projectors for golf simulators scoring, each product's published specifications, and verified owner feedback — not hands-on testing.
Both the Optoma GT2000HDR and the BenQ TH671ST made our Top 5 Projectors for Golf Simulators, at #4 (best budget) and #5. The budget pick that keeps the specs that actually matter: a 30,000-hour laser, IP6X dust sealing, the same 0.496:1 short throw, and 8.6 ms gaming input lag — at the lowest price of any laser here. It ranks above the TH671ST because it's brighter (3,500 vs 3,000 lumens), faster, cheaper, and maintenance-free, but below the GT2100HDR because its 20% lower output needs a light-controlled room to look its best. The most proven projector in home golf simulation — sim specialists from Carl's Place to Rapsodo have packaged it for years, and its 1.2x zoom makes placement more forgiving than any fixed-lens Optoma. It ranks last in 2026 on hardware economics alone: its lamp dims with age and lacks dust sealing, and at its current Amazon price it costs more than the brighter, laser-based GT2000HDR. Choose it for the track record and zoom flexibility, not the spec sheet.
We score projectors for golf simulators on Image Brightness & Quality (30%), Input Lag (20%), Throw & Mounting Flexibility (20%), Reliability & Maintenance (15%) and Value (15%). On that basis the Optoma GT2000HDR totals 8.7 out of 10 and the BenQ TH671ST 8.2. The widest gap is Reliability & Maintenance, where the Optoma GT2000HDR scores 9 against 7.2 for the BenQ TH671ST — light source life and dust protection in garage bays. Value also separates them: 9.3 for the Optoma GT2000HDR versus 8.2 for the BenQ TH671ST. The BenQ TH671ST claws back ground on Throw & Mounting Flexibility.
On paper, the specifications that actually differ: Resolution — 1080p Full HD (4K HDR input) on the Optoma GT2000HDR versus 1080p Full HD on the BenQ TH671ST; Rated Brightness — 3,500 lumens on the Optoma GT2000HDR versus 3,000 ANSI lumens on the BenQ TH671ST; Throw Ratio — 0.496:1 (fixed short throw) on the Optoma GT2000HDR versus 0.69–0.83:1 (short throw) on the BenQ TH671ST; Lowest Input Lag — 8.6 ms (1080p/120Hz) on the Optoma GT2000HDR versus 16.7 ms (1080p/60Hz) on the BenQ TH671ST; Light Source — DuraCore laser on the Optoma GT2000HDR versus Lamp (DLP) on the BenQ TH671ST; Light Source Life — 30,000 hours on the Optoma GT2000HDR versus 4,000–15,000 hours (LampSave) on the BenQ TH671ST.
Pricing as of July 18, 2026: $899 for the Optoma GT2000HDR and $949 for the BenQ TH671ST, a $50 difference in the Optoma GT2000HDR's favor. Owners praise the Optoma GT2000HDR for lowest price of any laser option here while keeping the 0.496:1 short throw, 30,000-hour light source, and IP6X dust sealing and 3,500 lumens is still bright enough for a light-controlled bay and beats every lamp projector in this class; the most common complaint is about 20% dimmer than the GT2100HDR/GT2400HDR — in a garage with ambient light the image washes out sooner. Owners praise the BenQ TH671ST for the most proven projector in home golf simulation, with years of owner installs and setup guides from Carl's Place, Rapsodo, and other sim specialists and 1.2x optical zoom and auto vertical keystone make placement more forgiving than any fixed-lens Optoma; the most common complaint is lamp light source dims over time and eventually needs replacement (rated 4,000 hours in normal mode, up to 15,000 in LampSave) — every laser pick here is rated 20,000-30,000 hours.
Optoma GT2000HDR
- Lowest price of any laser option here while keeping the 0.496:1 short throw, 30,000-hour light source, and IP6X dust sealing
- 3,500 lumens is still bright enough for a light-controlled bay and beats every lamp projector in this class
- 8.6 ms input lag (1080p/120Hz enhanced gaming mode) matches the pricier GT2100HDR
- Ultra-compact chassis is easy to ceiling-mount or shelf-mount out of the swing path
- About 20% dimmer than the GT2100HDR/GT2400HDR — in a garage with ambient light the image washes out sooner
- Amazon stock often comes from smaller third-party sellers with limited quantities
- Fixed lens and 1080p, with no golf-specific picture mode
BenQ TH671ST
- The most proven projector in home golf simulation, with years of owner installs and setup guides from Carl's Place, Rapsodo, and other sim specialists
- 1.2x optical zoom and auto vertical keystone make placement more forgiving than any fixed-lens Optoma
- 16.7 ms input lag and a dedicated low-latency game mode keep simulator response crisp
- Dual HDMI inputs and a built-in 5W speaker simplify simple one-cable setups
- Lamp light source dims over time and eventually needs replacement (rated 4,000 hours in normal mode, up to 15,000 in LampSave) — every laser pick here is rated 20,000-30,000 hours
- At around $949 on Amazon it currently costs more than the brighter, laser-based Optoma GT2000HDR
- No dust sealing, which matters in garage bays where turf infill and dust circulate
Which should you buy?
The Optoma GT2000HDR is the better fit for budget builds that still want a maintenance-free laser and basements and rooms with good light control — it is the higher-scoring pick here, chiefly for Reliability & Maintenance and Value. The BenQ TH671ST is the better fit for buyers who want the most documented, widely-supported entry sim projector and installs that need zoom flexibility on a budget, and the stronger choice if Throw & Mounting Flexibility matters more to you than the overall score. Since the Optoma GT2000HDR is both the higher scorer and $50 cheaper, the BenQ TH671ST only makes sense for buyers who want the most documented, widely-supported entry sim projector. The Optoma GT2000HDR is a poor fit for bright garages where every lumen counts; the BenQ TH671ST is a poor fit for set-and-forget garage installs (lamp maintenance, no dust sealing).
Choose the Optoma GT2000HDR if
- Budget builds that still want a maintenance-free laser
- Basements and rooms with good light control
- First simulators that may be upgraded later
Skip it if
- Bright garages where every lumen counts
- Buyers who want guaranteed first-party stock
Choose the BenQ TH671ST if
- Buyers who want the most documented, widely-supported entry sim projector
- Installs that need zoom flexibility on a budget
- Multi-use rooms where the projector doubles for movies and gaming
Skip it if
- Set-and-forget garage installs (lamp maintenance, no dust sealing)
- Bright rooms needing 4,000+ lumens
Common questions
Is the Optoma GT2000HDR better than the BenQ TH671ST?
In our Projectors for Golf Simulators ranking the Optoma GT2000HDR scores higher overall, 8.7 to 8.2, with the biggest advantage in Reliability & Maintenance. The BenQ TH671ST is stronger on Throw & Mounting Flexibility, so it is the better pick if that matters most to you.
How much more does the BenQ TH671ST cost than the Optoma GT2000HDR?
$50 more as of July 18, 2026: $949 for the BenQ TH671ST against $899 for the Optoma GT2000HDR. Prices move, so the merchant page shows the current figure.
What is the main difference between the Optoma GT2000HDR and the BenQ TH671ST?
The headline spec difference is Resolution: 1080p Full HD (4K HDR input) on the Optoma GT2000HDR versus 1080p Full HD on the BenQ TH671ST. In use, the gap that matters most is Reliability & Maintenance (9 vs 7.2 in our scoring): light source life and dust protection in garage bays.