ASUS ROG Strix XG259QNS vs LG UltraGear 27GR83Q-B
ASUS ROG Strix XG259QNS (#1, best overall) vs LG UltraGear 27GR83Q-B (#3): in our Gaming Monitors for Competitive FPS Under $300 scoring the ASUS ROG Strix XG259QNS totals 9.2/10 and the LG UltraGear 27GR83Q-B 8.6/10.
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TopsFive comparison scores
Side by side
| ASUS ROG Strix XG259QNS | LG UltraGear 27GR83Q-B | |
|---|---|---|
| Screen Size | 24.5" | 27" |
| Resolution | 1920x1080 | 2560x1440 |
| Refresh Rate | 380Hz (OC) | 240Hz |
| Panel | Fast IPS | IPS |
| Response Time | 0.3ms GtG (min) | 1ms GtG |
| Adaptive Sync | FreeSync Premium, G-Sync Compatible | FreeSync Premium, G-Sync Compatible |
| Stand | Height / tilt / swivel / pivot | Height / tilt / pivot |
| HDR | — | DisplayHDR 400 |
| Color Gamut | — | 95% DCI-P3 |
| Inputs | — | 2x HDMI 2.1, 1x DisplayPort 1.4 |
| Price | Check price → | Check price → |
How they differ in real use
Built from our competitive fps monitors under 300 scoring, each product's published specifications, and verified owner feedback — not hands-on testing.
Both the ASUS ROG Strix XG259QNS and the LG UltraGear 27GR83Q-B made our Top 5 Gaming Monitors for Competitive FPS Under $300, at #1 (best overall) and #3. For pure competitive FPS this is the one to beat: a Fast IPS panel overclocked to 380Hz with a rated 0.3ms minimum response, and ELMB Sync that runs backlight strobing and variable refresh together. Nothing else under $300 combines this much refresh headroom, this little motion blur, and this low latency in one esports-tuned package. Matches the Acer above it on core gaming specs (a 27" 1440p IPS at 240Hz with a rated 1ms GtG response) and adds a more complete feature set: two HDMI 2.1 inputs that carry 240Hz and VRR, official FreeSync Premium and G-Sync Compatible certification, a 95% DCI-P3 gamut and a height- and pivot-adjustable stand. Display Ninja and Monitornerds report input lag of about 3ms at 240Hz. It costs more than the Acer and LG lists no strobing mode to match Acer's 0.5ms VRB, which keeps it third; its 1440p panel is what puts it ahead of the 1080p Samsung and Dell.
We score gaming monitors for competitive fps under $300 on Motion Clarity (30%), Refresh Rate (25%), Input Lag (15%), Panel & Resolution (15%) and Value (15%). On that basis the ASUS ROG Strix XG259QNS totals 9.2 out of 10 and the LG UltraGear 27GR83Q-B 8.6. The widest gap is Motion Clarity, where the ASUS ROG Strix XG259QNS scores 9.6 against 8.4 for the LG UltraGear 27GR83Q-B: pixel response and motion blur reduction. Refresh Rate also separates them: 10 for the ASUS ROG Strix XG259QNS versus 8.6 for the LG UltraGear 27GR83Q-B. The LG UltraGear 27GR83Q-B claws back ground on Panel & Resolution and Value.
On paper, the specifications that actually differ: Screen Size: 24.5" on the ASUS ROG Strix XG259QNS versus 27" on the LG UltraGear 27GR83Q-B; Resolution: 1920x1080 on the ASUS ROG Strix XG259QNS versus 2560x1440 on the LG UltraGear 27GR83Q-B; Refresh Rate: 380Hz (OC) on the ASUS ROG Strix XG259QNS versus 240Hz on the LG UltraGear 27GR83Q-B; Panel: Fast IPS on the ASUS ROG Strix XG259QNS versus IPS on the LG UltraGear 27GR83Q-B; Response Time: 0.3ms GtG (min) on the ASUS ROG Strix XG259QNS versus 1ms GtG on the LG UltraGear 27GR83Q-B; Stand: Height / tilt / swivel / pivot on the ASUS ROG Strix XG259QNS versus Height / tilt / pivot on the LG UltraGear 27GR83Q-B. They match on Adaptive Sync.
Check current pricing at the merchant links below. Owners praise the ASUS ROG Strix XG259QNS for 380Hz overclocked refresh ceiling and rated 0.3ms minimum GtG response; the most common complaint is 1080p looks soft up close on a 24.5" panel. Owners praise the LG UltraGear 27GR83Q-B for 27" 1440p IPS at 240Hz with about 3ms input lag reported by independent reviewers and two HDMI 2.1 inputs that carry 240Hz and VRR, plus DisplayPort 1.4; the most common complaint is low (about 1,000:1) IPS contrast makes blacks look gray in a dark room.
ASUS ROG Strix XG259QNS
- 380Hz overclocked refresh ceiling
- Rated 0.3ms minimum GtG response
- ELMB Sync runs strobing and VRR together
- Fast IPS with ~110% sRGB and wide viewing angles
- 1080p looks soft up close on a 24.5" panel
- Sustaining 380fps needs a strong GPU and light settings
- DisplayHDR 400 has no local dimming
LG UltraGear 27GR83Q-B
- 27" 1440p IPS at 240Hz with about 3ms input lag reported by independent reviewers
- Two HDMI 2.1 inputs that carry 240Hz and VRR, plus DisplayPort 1.4
- Official FreeSync Premium and G-Sync Compatible certification
- Wide 95% DCI-P3 color gamut
- Low (about 1,000:1) IPS contrast makes blacks look gray in a dark room
- DisplayHDR 400 without local dimming adds little
- The fastest overdrive setting overshoots, so 'Fast' is the usable mode
Which should you buy?
The ASUS ROG Strix XG259QNS is the better fit for competitive FPS and esports players and anyone chasing maximum frame rate and motion clarity; it is the higher-scoring pick here, chiefly for Motion Clarity and Refresh Rate. The LG UltraGear 27GR83Q-B is the better fit for competitive players who want 1440p sharpness at 240Hz and PC and console players who need HDMI 2.1 inputs, and the stronger choice if Panel & Resolution and Value matter more to you than the overall score. The ASUS ROG Strix XG259QNS is a poor fit for players who want 1440p sharpness; the LG UltraGear 27GR83Q-B is a poor fit for dark-room players who want deep blacks.
Choose the ASUS ROG Strix XG259QNS if
- Competitive FPS and esports players
- Anyone chasing maximum frame rate and motion clarity
- CS2, Valorant, and Overwatch mains
Skip it if
- Players who want 1440p sharpness
- Owners of entry GPUs that cannot feed high frame rates
Choose the LG UltraGear 27GR83Q-B if
- Competitive players who want 1440p sharpness at 240Hz
- PC and console players who need HDMI 2.1 inputs
- Users who want a height- and pivot-adjustable stand
Skip it if
- Dark-room players who want deep blacks
- HDR content viewers
Common questions
Is the ASUS ROG Strix XG259QNS better than the LG UltraGear 27GR83Q-B?
In our Gaming Monitors for Competitive FPS Under $300 ranking the ASUS ROG Strix XG259QNS scores higher overall, 9.2 to 8.6, with the biggest advantage in Motion Clarity. The LG UltraGear 27GR83Q-B is stronger on Panel & Resolution and Value, so it is the better pick if those matter most to you.
What is the main difference between the ASUS ROG Strix XG259QNS and the LG UltraGear 27GR83Q-B?
The headline spec difference is Screen Size: 24.5" on the ASUS ROG Strix XG259QNS versus 27" on the LG UltraGear 27GR83Q-B. In use, the gap that matters most is Motion Clarity (9.6 vs 8.4 in our scoring): pixel response and motion blur reduction.