GIGABYTE M28U 28" 4K 144Hz KVM Gaming Monitor vs Sceptre C305B-FUN200W 30" Curved Ultrawide Gaming Monitor
The GIGABYTE M28U 28" 4K 144Hz KVM Gaming Monitor is the mid-range option here, offering stunning 4K resolution at 3840 x 2160. In contrast, the Sceptre C305B-FUN200W 30" Curved Ultrawide Gaming Monitor provides a broader 21:9 aspect ratio but at a lower 2560 x 1080 resolution, making it a budget-friendly choice. What matters most here is the GIGABYTE's 144Hz refresh rate, perfect for fast-paced gaming, while the Sceptre's impressive 200Hz refresh rate shines in fluid motion, especially in racing and FPS games. Let's dive into the details to find out.
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GIGABYTE M28U 28" 4K 144Hz KVM Gaming Monitor

Sceptre C305B-FUN200W 30" Curved Ultrawide Gaming Monitor
Only the specs that differ are shown here. Winners are highlighted when the data is clear.
+Full specs, pros, and cons
Everything side-by-side with ratings and the full spec list.
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Full specs, pros, and cons
Everything side-by-side with ratings and the full spec list.
Comparison: GIGABYTE M28U 28" 4K 144Hz KVM Gaming Monitor vs Sceptre C305B-FUN200W 30" Curved Ultrawide Gaming Monitor

GIGABYTE M28U 28" 4K 144Hz KVM Gaming Monitor

Sceptre C305B-FUN200W 30" Curved Ultrawide Gaming Monitor
| Criterion | GIGABYTE M28U 28" 4K 144Hz KVM Gaming Monitor | Sceptre C305B-FUN200W 30" Curved Ultrawide Gaming Monitor |
|---|---|---|
| Rating | ★4.4(271)Best Buy | ★4.5(162)Amazon |
Screen Size | 28" Viewable (28" Class) | 30" Diagonal Viewable |
Resolution | 3840 x 2160 (4K UHD) | 2560 x 1080 (WFHD) |
Aspect Ratio | 16:9 | 21:9 |
Screen Type | SS IPS (Super Speed IPS) | VA (Vertical Alignment) |
Refresh Rate | 144 Hz (PC) / 120 Hz (Console via HDMI 2.1) | 200 Hz (DisplayPort); 165 Hz (HDMI 2.0); 75 Hz (HDMI 1.4) |
Response Time | 1 ms (GtG) / 2 ms (MPRT) | 5 ms (GtG); 1 ms (MPRT / Blur Reduction) |
Brightness | 300 nits (Typical) | 320 cd/m² (Typical) |
Contrast | 1,000:1 (Typical) | 3,000:1 (Static) |
Color Gamut | 94% DCI-P3 / 120% sRGB | 99% sRGB |
Color Depth | 8-bit | 16.7M (8-bit) |
HDR | VESA DisplayHDR 400 | Yes (HDR400 Signal Support; Edge-lit) |
Adaptive Sync | AMD FreeSync Premium Pro | AMD FreeSync Premium |
Viewing Angles | 178° (H) / 178° (V) | 178° (H) / 178° (V) |
Curvature | Flat | 1500R |
Speakers | 2x 3 W (Stereo) | Yes (2x 3W, 4Ω) |
Ports | 2x HDMI 2.1; 1x DisplayPort 1.4 (DSC); 1x USB-C (DP Alt Mode, Data, 15W PD); 3x USB 3.0 Downstream; 1x USB-B Upstream; 1x 3.5mm Headphone Out | 1x DisplayPort 1.2 (200Hz); 1x HDMI 2.0 (165Hz); 2x HDMI 1.4 (75Hz); 1x 3.5mm Audio Out |
USB C | Yes (Video + Data + 15W Power Delivery) | No |
Kvm | Yes (Built-in) | No |
Vesa | 100 x 100 mm | 75 x 75 mm |
Ergonomics | Height (130mm), Tilt (-5° to 20°); No Swivel or Pivot | Height adj. (4.08" - 8.61"); Tilt (-5° to 20°); Swivel (±25°) |
Power Consumption | 40.5 W (Typical) / 115 W (Max) / 0.5 W (Standby) | 45 W (Typical); 52 W (Max) |
Weight With Stand | 6,930 g (15.28 lbs) | 6,200 g (13.67 lbs) |
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GIGABYTE M28U 28" 4K 144Hz KVM Gaming Monitor
✓ Pros:
- • HDMI 2.1 ports support 4K @ 120Hz for PS5 and Xbox Series X (utilizing DSC or chroma subsampling due to 24Gbps bandwidth)
- • Built-in KVM switch allows controlling two devices (e.g., PC and Laptop) with one keyboard/mouse
- • Super Speed IPS panel delivers low 1ms response time with wide viewing angles
- • Excellent pixel density (157 PPI) results in extremely sharp text and images
- • Reasonably priced entry point for high-refresh 4K gaming
✗ Cons:
- • USB-C power delivery is limited to 15W/18W, which is insufficient to charge most laptops
- • HDMI 2.1 bandwidth is capped at 24Gbps (relies on DSC for full 4K 144Hz 4:4:4)
- • Stand lacks Swivel and Pivot adjustments
- • Contrast is average for IPS (1,000:1), meaning blacks look gray in dark rooms
- • HDR performance is minimal (DisplayHDR 400) with no local dimming
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Sceptre C305B-FUN200W 30" Curved Ultrawide Gaming Monitor
✓ Pros:
- • High-speed 200Hz refresh rate (via DisplayPort) provides fluid motion for racing and FPS games
- • Deep 3,000:1 contrast ratio typical of VA panels creates rich blacks
- • Versatile connectivity with 4 total video inputs (1x DP, 3x HDMI)
- • Includes a fully adjustable stand (Height, Tilt, Swivel) which is rare at this price point
- • Unique white chassis ('Nebula White') stands out from standard black monitors
✗ Cons:
- • Resolution (2560x1080) has lower pixel density than 1440p, making text look less sharp
- • HDMI ports are limited to lower refresh rates (165Hz and 75Hz) compared to DisplayPort
- • VA panel technology causes some 'black smearing' in dark transitions compared to IPS
- • HDR performance is entry-level due to edge-lit dimming and limited peak brightness
- • Stand footprint is somewhat deep, requiring ample desk space
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Which one is better?
The GIGABYTE M28U 28" 4K 144Hz KVM Gaming Monitor is the better buy for most people - its 3840 x 2160 resolution crushes the Sceptre C305B-FUN200W 30" Curved Ultrawide's 2560 x 1080.
Who should buy each?
Choose the GIGABYTE M28U 28" 4K 144Hz KVM Gaming Monitor if: you want ultra-high-definition gaming at 4K, need a built-in KVM switch for multiple devices, or prioritize sharp text and images.
Choose the Sceptre C305B-FUN200W 30" Curved Ultrawide Gaming Monitor if: you prefer a wider field of view for immersive gaming, want the fastest refresh rate at a budget price, or need an adjustable stand with ergonomic features. (30" display, 200 Hz refresh)
Conclusion
There is no wrong answer here. Focus on the features you will use daily and pick the model that aligns with them.
Frequently Asked Questions
+Which has better value?
GIGABYTE M28U 28" 4K 144Hz KVM Gaming Monitor excels if you value hdmi 2.1 ports support 4k @ 120hz for ps5 and xbox series x (utilizing dsc or chroma subsampling due to 24gbps bandwidth). Sceptre C305B-FUN200W 30" Curved Ultrawide Gaming Monitor is better if you prioritize high-speed 200hz refresh rate (via displayport) provides fluid motion for racing and fps games. Pick based on your budget and daily use.
+Is this an independent review?
Yes. We use affiliate links for monetization, but recommendations are research-driven and unbiased.
+Do newer models exist?
Check release timelines from the manufacturers and compare pricing before you buy. We refresh this page when major updates land.
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