Comparison guide
LG UltraGear 27GP850-B vs ASUS ROG Swift PG27AQDM: which should you choose?
LG UltraGear 27GP850-B and ASUS ROG Swift PG27AQDM compared under one framework. One recorded specification difference is Peak brightness: 1000 nits on the ASUS ROG Swift PG27AQDM against 400 nits on the LG UltraGear 27GP850-B. Specifications and their sources are recorded alongside.
Published: 2026-08-04 · Updated: 2026-10-03
Monitors verdict
Undocumented scoring basis · overall score and upgrade ranking withheld. The table records stored representative configurations; confirm the configuration and price on the merchant page before buying.
- LG UltraGear 27GP850-B: The 27-inch QHD Nano IPS that became a gaming standard — 165Hz, 1ms, fast with good color.
- ASUS ROG Swift PG27AQDM: A 27-inch QHD OLED 240Hz gaming monitor with a custom heatsink. ASUS rates its peak HDR brightness at 1000 nits for a 3% screen area.
- Undocumented quality and performance advantages are not ranked
- Specification field coverage (not accuracy): 100%
Choosing between LG UltraGear 27GP850-B and ASUS ROG Swift PG27AQDM starts with the real use case and the problem to solve, not with which product is newer. No independent laboratory test is implied.
Core specifications on one baseline
| Item | LG UltraGear 27GP850-B | ASUS ROG Swift PG27AQDM | Delta |
|---|---|---|---|
| Screen size | 27 in AskRS catalog index · check date not recorded | 26.5 in AskRS catalog index · check date not recorded | -1.9% |
| Refresh rate | 165 Hz AskRS catalog index · check date not recorded | 240 Hz AskRS catalog index · check date not recorded | +45.5% |
| Peak brightness | 400 nits AskRS catalog index · check date not recorded | 1000 nits AskRS catalog index · check date not recorded | +150% |
| Response time | 1 ms AskRS catalog index · check date not recorded | 0.03 ms AskRS catalog index · check date not recorded | -97% |
| DCI-P3 coverage | 98 % AskRS catalog index · check date not recorded | 99 % AskRS catalog index · check date not recorded | +1% |
| Chipset | Nano IPS panel | WOLED panel | Different |
| Color | Black | Black | Same |
| Connectivity | 2x HDMI 2.0, DP 1.4, USB 3.0 hub | 2x HDMI 2.0, DP 1.4, USB 3.1 hub | Different |
| Hdr | VESA DisplayHDR 400 | VESA DisplayHDR True Black 400 | Different |
| Panel type | Nano IPS | WOLED | Different |
| Region | GLOBAL | GLOBAL | Same |
| Resolution | 2560x1440 (QHD) | 2560x1440 (QHD) | Same |
10 of the 24 values in this table carry a source. The rest have no source on record, which is not the same as being wrong.
How to read Same, Different, No data, Unverified and Not applicable is documented on the configuration-level specification screen. If a condition you require is unknown, withhold the decision and match the exact model, sales region and configuration against the sources on that screen.
Differences recorded in the table
3 fields can be ranked on the same basis, listed by weight.
- Peak brightness · ASUS ROG Swift PG27AQDM 1000 nits, LG UltraGear 27GP850-B 400 nits (+150%)
- Refresh rate · ASUS ROG Swift PG27AQDM 240 Hz, LG UltraGear 27GP850-B 165 Hz (+45.5%)
- Response time · ASUS ROG Swift PG27AQDM 0.03 ms, LG UltraGear 27GP850-B 1 ms (-97%)
The decision axes and the checking order for the whole category are on the Monitors comparison page.
The two products this comparison names
Match the listing against these models first. The recorded-field count is catalogue completeness, not product quality.
- LG UltraGear 27GP850-B · LG · model number 27GP850-B · released 2021 · recorded fields 12/12
- ASUS ROG Swift PG27AQDM · ASUS · model number PG27AQDM · released 2023 · recorded fields 12/12
Fields the two products share
3 recorded fields hold the same value for both stored representative configurations, so nothing in this list separates them.
- Color · Black
- Region · GLOBAL
- Resolution · 2560x1440 (QHD)
Who should choose LG UltraGear 27GP850-B
LG UltraGear 27GP850-B leads no field in the table, so choose it on price and purchase terms. The 27-inch QHD Nano IPS that became a gaming standard — 165Hz, 1ms, fast with good color.
Who should choose ASUS ROG Swift PG27AQDM
ASUS ROG Swift PG27AQDM leads the table on Peak brightness, Refresh rate, Response time. A 27-inch QHD OLED 240Hz gaming monitor with a custom heatsink. ASUS rates its peak HDR brightness at 1000 nits for a 3% screen area.
How to read price and purchase availability
No merchant link is shown: neither product has an approved listing whose name and configuration match the catalogue, and AsKrs does not guess a destination.
- LG UltraGear 27GP850-B · No verified purchase link currently available
- ASUS ROG Swift PG27AQDM · No verified purchase link currently available
This comparison is built from published specifications and stored representative configurations. The use context, configuration checks, switching costs, and the scope and limits for Monitors are documented on the Monitors comparison page.