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LG UltraWide 34U640B-B 34" WQHD 144Hz
LG

LG UltraWide 34U640B-B 34" WQHD 144Hz

LG UltraWide 34U640B-B 34" WQHD 144Hz gaming monitor from LG: 34" display with 3440x1440 (UWQHD) resolution. Smooth, sharp visuals for gaming and competing.

Price

$284.99 USD

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Specifications

Size
34"
Resolution
3440x1440 (UWQHD)
Refresh Rate
144Hz

Quick analysis: LG UltraWide 34U640B-B 34" WQHD 144Hz

LG UltraWide 34U640B-B 34" WQHD 144Hz is a high-end option in our gaming monitors catalog ($284.99). Best part: 144 Hz: fluid motion, the gaming standard.

Price position: It is the #23 cheapest of the 30 products in our gaming monitors catalog (high-end by price). It costs 50% more than the category median ($189.99).

Strengths

  • 144 Hz: fluid motion, the gaming standard.
  • 3440x1440 (UWQHD) resolution: more detail than Full HD without being as demanding as 4K.

Who is it for?

34" monitor with 3440x1440 (UWQHD) at 144 Hz. To get the most from it, pair it with an upper-midrange card (RTX 5070 / RX 9070 GRE).

Who should look elsewhere?

If your graphics card is modest, you will not reach the frame rates this refresh rate allows; adjust resolution and quality.

How it compares

Next one down in priceLG UltraGear 34G600A-B 34" WQHD 160Hz$265.99 · $19.00 (7 %) cheaperSize: 34" → 34" curvo · Refresh Rate: 144Hz → 160HzNext one up in priceAcer Predator X27U 26.5" QD-OLED 240Hz$314.99 · $30.00 (11 %) moreSize: 34" → 26.5" · Resolution: 3440x1440 (UWQHD) → 2560x1440 (QHD) · Refresh Rate: 144Hz → 240Hz

Frequently asked questions about this product

What graphics card do I need?
For 3440x1440 (UWQHD) at 144 Hz we recommend an upper-midrange card (RTX 5070 / RX 9070 GRE).
What panel and response time does it have?
N/A panel with N/A response time.

Automatic analysis based on this catalog's specs and prices; it is a guide, not a lab test. Price checked on 2026-10-07.