Best match
MSI MAG 272QP QD-OLED X50
$650vs $1,000Save $350 (35%)
Why it's a good swap A 27-inch 1440p QD-OLED with a 500Hz refresh rate for fast esports play.
You give up: Tops out at 500Hz and has no 720Hz low-resolution mode like the LG.
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Prices checked October 2026Not tested in handNo paid rankingsHow we pick
You give up: Tops out at 500Hz and has no 720Hz low-resolution mode like the LG.
Short answer: The closest cheaper alternative to the LG UltraGear OLED GX7 27" QHD 540Hz Gaming Monitor (27GX790B-B) is the MSI MAG 272QP QD-OLED X50, about $650 instead of $1,000 (save 35%). What you give up: Tops out at 500Hz and has no 720Hz low-resolution mode like the LG. The cheapest is the LG UltraGear 27GX704A-B 27" QHD 240Hz OLED at about $400. Prices checked October 2026.
Why it's a good swap A 27-inch 1440p QD-OLED with a 500Hz refresh rate for fast esports play.
You give up: Tops out at 500Hz and has no 720Hz low-resolution mode like the LG.
Why it's a good swap LG's own 27-inch 1440p OLED gaming monitor with a glossy screen.
You give up: 240Hz instead of 540Hz, so motion is less crisp in fast shooters.
Why it's a good swap A 27-inch 1440p QD-OLED with 280Hz refresh, praised as a strong value pick.
You give up: 280Hz instead of 540Hz, so it is less smooth in very fast games.
Typical US prices, checked October 2026. Not live prices; check the listing before you buy.
Looking for a cheaper alternative to the LG UltraGear OLED GX7 27" QHD 540Hz Gaming Monitor (27GX790B-B)? It usually sells for about $1,000. Here are 3 cheaper swaps from $400: the MSI MAG 272QP QD-OLED X50 is the closest match from another brand and the LG UltraGear 27GX704A-B 27" QHD 240Hz OLED is a cheaper option from LG. Each one says what you give up for the lower price.
The LG UltraGear 27GX790B lists for about $1,000. A cheaper 27-inch OLED is LG's own 27GX704A-B at about $400, and the MSI MAG 271QP QD-OLED X28 is also about $400.
Worth it for competitive esports players with a PC that can push very high frame rates. LG lists 540Hz at 1440p, a 720Hz mode at 720p and a 0.02ms response time, and Tom's Guide measured 561 nits on a 10% window, bright for an OLED gaming monitor.
Most players won't reach 540 frames per second, as Tom's Guide found even with an RTX 5090 laptop. The MSI MAG 271QP QD-OLED X28 ($400) and LG UltraGear 27GX704A-B 27" QHD 240Hz OLED ($400) keep a 27-inch 1440p OLED at 280Hz and 240Hz.
| Option | Type | Typical price | You save | What you give up | Buy |
|---|---|---|---|---|---|
| LG UltraGear OLED GX7 27" QHD 540Hz Gaming Monitor (27GX790B-B) | The original | $1,000 | – | – | View ↗ |
| LG UltraGear 27GX704A-B 27" QHD 240Hz OLED | Same brand, cheaper | $400 | $600 (60%) | 240Hz instead of 540Hz, so motion is less crisp in fast shooters. | View ↗ |
| MSI MAG 271QP QD-OLED X28 | Budget pick | $400 | $600 (60%) | 280Hz instead of 540Hz, so it is less smooth in very fast games. | View ↗ |
| MSI MAG 272QP QD-OLED X50 | Close match | $650 | $350 (35%) | Tops out at 500Hz and has no 720Hz low-resolution mode like the LG. | View ↗ |
Typical US prices from retailer listings and price trackers, checked October 2026. They are not live Amazon prices and may have changed, so check the listing before you buy.
The LG UltraGear 27GX704A-B 27" QHD 240Hz OLED, at about $400 (60% less). LG's own 27-inch 1440p OLED gaming monitor with a glossy screen. The catch: 240Hz instead of 540Hz, so motion is less crisp in fast shooters.
The MSI MAG 272QP QD-OLED X50, at about $650 (35% less). A 27-inch 1440p QD-OLED with a 500Hz refresh rate for fast esports play. The catch: Tops out at 500Hz and has no 720Hz low-resolution mode like the LG.
LG says you can switch between 1440p at 540Hz and 720p at 720Hz. Tom's Guide found that games look very blurry in the 720p mode.
To use the full refresh rate, yes. Tom's Guide tested with an RTX 5090 laptop and still struggled to reach matching frame rates, though games ran smoothly without tearing.
Tom's Guide measured 561 nits on a 10% window, which it says is nearly double what most OLED gaming monitors deliver. LG rates it DisplayHDR True Black 500.
Each swap links to amazon.com. Prices are typical US prices checked October 2026 and change often, so check the listing before you buy.
Every swap is a product sold in the US that does the main job of the original. Close match is another brand with similar features, Same brand, cheaper is an older, smaller or renewed model from the same maker, and Budget pick is the cheapest thing that still does the job. On each page, Closest match is the close match nearest the original in price, and Lowest price is the cheapest swap. We compare published specs, retailer listings and reviews; we don't test products ourselves.
A cheaper product is cheaper for a reason. Each swap says what you give up, like weaker noise cancelling, a smaller screen or a shorter warranty, so you can decide if the savings are worth it.
Prices are typical US prices from retailer listings and price trackers, last checked October 2026. They are not live Amazon prices, which change often. When a price couldn't be confirmed, the page says “Check price on Amazon” instead of showing a number.
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