Choose between a high-refresh QHD gaming setup and a one-cable laptop desk
Both are 27-inch QHD (2560 × 1440) IPS monitors, so choose by source and cabling. The LG supports up to 240Hz with a compatible DisplayPort 1.4 or HDMI 2.1 graphics output; the ASUS tops out at 75Hz but combines USB-C DisplayPort, data, and up to 65W power delivery with its USB hub. These are documented feature-fit differences, not measured image-quality or motion-performance results.
Published by Pickoryx · Published 2026-10-02
Source checked 2026-10-02 09:23 UTC
Products compared
Product A · ASIN B0C63HDHPR
LG 27GR83Q-B.AUS 27-inch QHD 240Hz UltraGear Monitor (Black)
Last observed offer
$289.90 List Price: $499.99
Per listed package.
Offer eligibility must be confirmed on Amazon.
Checked 2026-10-19 19:07 UTC. Price and availability may change.
Product B · ASIN B08LCPY1TR
ASUS ProArt Display PA278CV 27-inch QHD Monitor (Black/Silver)
Last observed offer
$269.66
Per listed package.
Offer eligibility must be confirmed on Amazon.
Checked 2026-10-19 16:21 UTC. Price and availability may change.
Pickoryx may earn a commission from qualifying purchases through the paid Amazon links on this page, at no added cost to you.
The buying question
Is the LG's supported 240Hz input ceiling more useful, or does the ASUS's USB-C video, data, and 65W laptop charging fit better?
The LG prioritizes a much higher supported refresh ceiling over HDMI 2.1 or DisplayPort 1.4; the ASUS prioritizes USB-C display/data and up to 65W power delivery with a downstream USB hub, with a 75Hz maximum refresh rate.
Quick verdict
Choose LG 27GR83Q-B.AUS 27-inch QHD 240Hz UltraGear Monitor (Black) if
- Your PC can output QHD above 75Hz and you want the LG's documented up-to-240Hz mode over supported DisplayPort 1.4 or HDMI 2.1.
- You prefer a desk connection built around HDMI or DisplayPort and do not need the monitor to provide USB-C laptop charging.
Choose ASUS ProArt Display PA278CV 27-inch QHD Monitor (Black/Silver) if
- Your laptop supports USB-C DisplayPort Alt Mode and 65W or less is enough for its charging needs.
- You want display and USB data through USB-C, with compatible USB peripherals connected to the monitor's USB-A hub.
When the recommendation changes
- If your laptop needs more than 65W, verify its power requirement before treating the ASUS as its charger.
- If your source cannot output above 75Hz, the LG's higher listed ceiling may not change your setup choice.
- If you need one display to combine high refresh above 75Hz with USB-C video and laptop charging, neither product's documented feature set establishes that combination.
The differences that matter
Resolution Refresh Input Workflow
LG 27GR83Q-B.AUS 27-inch QHD 240Hz UltraGear Monitor (Black)
The 27GR83Q-B is a QHD display with a maximum 240Hz refresh rate. LG says up to 240Hz requires a graphics card supporting DisplayPort 1.4 or HDMI 2.1.[1]
ASUS ProArt Display PA278CV 27-inch QHD Monitor (Black/Silver)
The PA278CV is QHD with a maximum refresh rate of 75Hz; ASUS lists HDMI signal vertical frequency up to 75Hz and DisplayPort up to 75Hz.[3]
What this changes: For a source capable of more than 75 QHD frames per second, the LG offers a higher documented refresh ceiling, subject to the graphics output and connection supporting the required mode. The ASUS is the lower-ceiling option; this specification comparison does not measure motion clarity, response behavior, or gaming performance.[1, 3]
Connection Power Workflow
LG 27GR83Q-B.AUS 27-inch QHD 240Hz UltraGear Monitor (Black)
LG's US product page lists two HDMI 2.1 inputs, DisplayPort, USB upstream, two USB downstream ports, and a four-pole headphone output. The LG US product page's interface list does not list a USB-C display input or USB-C power delivery.[1]
ASUS ProArt Display PA278CV 27-inch QHD Monitor (Black/Silver)
The PA278CV has one USB-C port with DisplayPort Alt Mode and up to 65W power delivery. ASUS says USB-C can carry DisplayPort video and data, provide power, and enable the monitor's USB-A downstream ports. Its manual specifies that the source must support DP Alt Mode for video, audio, and data over USB-C.[3, 4]
What this changes: For a compatible laptop whose power need is within 65W, ASUS documents a single USB-C path for display, data, charging, and access to attached USB-A peripherals. LG's listed input set instead calls for an HDMI or DisplayPort video connection and a separate laptop power path; confirm the exact host ports and power needs before buying.[1, 3, 4]
Shared Qhd Resolution
LG 27GR83Q-B.AUS 27-inch QHD 240Hz UltraGear Monitor (Black)
27-inch QHD IPS panel at 2560 × 1440.[1]
ASUS ProArt Display PA278CV 27-inch QHD Monitor (Black/Silver)
27-inch IPS panel at 2560 × 1440.[3]
What this changes: Neither product is a 4K upgrade over the other; resolution does not separate this pair. The choice turns on supported refresh/input and laptop connection needs.[1, 3]
Best for your routine
A PC setup targeting QHD refresh rates above 75Hz through a supported HDMI 2.1 or DisplayPort 1.4 output
Best fit: LG 27GR83Q-B.AUS 27-inch QHD 240Hz UltraGear Monitor (Black)
Based on listed features, not comparative testing.
LG documents a 240Hz maximum with the specified compatible graphics outputs; this is a feature-fit recommendation, not a measured performance verdict.
A compatible laptop desk where up to 65W USB-C charging plus video and USB-A peripheral access are sufficient
Best fit: ASUS ProArt Display PA278CV 27-inch QHD Monitor (Black/Silver)
Based on listed features, not comparative testing.
ASUS documents USB-C DisplayPort Alt Mode, data, up to 65W power delivery, and enabling the monitor's USB-A ports over its upstream connection.
Value and trade-offs
One or both observed offers have eligibility conditions, so no unrestricted price difference is shown.
Compare the live offers against the feature you will use: the LG's supported high-refresh ceiling or the ASUS's USB-C laptop and peripheral workflow.
Price history is unavailable, so compare current checkout offers against the documented features and decide based on your setup and budget.
Limitations
- No hands-on or controlled side-by-side test was performed. The comparison covers manufacturer-listed modes and connections; it does not rank image quality, response behavior, motion clarity, or color accuracy.
- LG states that reaching up to 240Hz requires a graphics card supporting DisplayPort 1.4 or HDMI 2.1. Actual output also depends on the source device and connection used.
- ASUS specifies up to 65W USB-C power delivery. Check the laptop's power requirement and USB-C DisplayPort Alt Mode support; a monitor output rating alone does not establish that it can replace every laptop charger.
- LG's US interface list names HDMI, DisplayPort, USB upstream/downstream, and headphone output, without listing USB-C. Confirm the exact product and host cabling if USB-C video or charging is essential.
Questions shoppers ask
Can the LG reach 240Hz with any PC or console?
LG says up to 240Hz requires a graphics card that supports DisplayPort 1.4 or HDMI 2.1. Match the source output and cable to the mode you want; the maximum specification is not a promise that every attached source will output 240Hz.
Will the ASUS USB-C port charge every laptop?
No universal compatibility or charging result is established. ASUS lists up to 65W and says the host must support DisplayPort Alt Mode for USB-C video, audio, and data. Check both the laptop's USB-C video support and its required charging wattage.
Do both monitors have the same resolution?
Yes. Both are 27-inch 2560 × 1440 QHD IPS monitors; the principal documented difference here is refresh/input capability and the ASUS's USB-C laptop workflow.
Methodology and sources
Compared the US manufacturer specifications and the PA278CV user guide for supported QHD refresh/input modes and the exact display, data, power, and downstream USB connections. Maximum specifications are not treated as measured real-world performance.
AI assistance organized model-specific manufacturer information and drafted this comparison. Before buying, confirm that your source device and cable support the display mode you want, that your laptop supports USB-C DisplayPort Alt Mode and needs no more than 65W if you plan to use ASUS charging, and that the current offer terms suit you.
View 4 sources
- 1.27 Inch UltraGear QHD 1440P 1ms 240Hz Gaming Monitor with NVIDIA G-SYNC Compatible - 27GR83Q-BLG USA · Official specifications · Source checked 2026-10-02 09:23 UTC
Evidence used on this page
- Key features, line 103 interface inventory; 240Hz footnote lines 188–189; model and QHD/240Hz lines 28–30 and 97–100: LG USA identifies the 27GR83Q-B, lists a 27-inch QHD IPS panel and 240Hz maximum, requires a graphics card supporting DP 1.4 or HDMI 2.1 to achieve up to 240Hz, and enumerates HDMI 2.1 x2, DisplayPort, USB upstream, USB downstream x2, and four-pole headphone output.
- 2.27GR83Q-B.AUS: Support, Manuals, Warranty & MoreLG USA Support · Official support · Source checked 2026-10-02 09:23 UTC
Evidence used on this page
- Model heading and exact .AUS part number, lines 22–24; owner manual listed lines 43–63: LG USA's support page identifies exact model 27GR83Q-B.AUS and links the owner's manual and quick guide for this US suffix. This bridges the tracked .AUS SKU to the US 27GR83Q-B product family used for specifications.
- 3.ProArt Display PA278CV - Tech SpecsASUS USA · Official specifications · Source checked 2026-10-02 09:23 UTC
Evidence used on this page
- Model and display specification lines 16–38; complete I/O inventory and PD lines 67–73; regional caveat lines 130–133: ASUS USA names PA278CV, QHD 2560x1440, maximum refresh 75Hz, USB-C DP Alt Mode, two DisplayPort 1.2 ports, HDMI 1.4, four USB 3.2 Gen 1 Type-A downstream ports, and USB-C PD up to 65W. Accessories can vary by region and supplier.
- 4.ASUS PA278CV Series LCD Monitor User GuideASUS · Official support · Source checked 2026-10-02 09:23 UTC
Evidence used on this page
- Chapter 1, pp. 1-3–1-4, USB-C port / 65W / downstream USB function; Chapter 2, pp. 2-3–2-4, DP Alt Mode and USB upstream/downstream setup: The PA278CV guide specifies maximum USB-C output 65W, USB-C DisplayPort source input, power output, and enabling Type-A downstream ports. It states that DP Alt Mode is required for all video/audio/data through the Type-C cable and that a Type-C-to-Type-A cable enables only the monitor's USB-A ports.