Buying Guide
The Best 34-Inch Ultrawide Monitors
From the CU34G4H to the AW3425DW: three monitors ranked on refresh rate and screen size, with who should skip each one.
By The PC Journal editorial team
11 min read3 products evaluated
34-inch ultrawides widen the view in racing and RPGs. Every pick is 34 inches at 3440x1440, ordered from the lowest price.
We sorted these picks by refresh rate, resolution and size, working from the makers' own data; nothing here was tested in-house, and if a maker skips panel, the guide says so.
Quick Picks
Our 3 recommendations at a glance. Tap a pick for the full verdict.
Lowest Price Here
AOC CU34G4H Curved Ultrawide
A lower price than the AW3425DWM and the rest when we checked.
Best for: Keeping the budget tight.
Our take Check price for AOC CU34G4H Curved Ultrawide (opens in a new tab)
FreeSync Premium Adaptive Sync
Alienware 34 Curved AW3425DWM
A freeSync Premium.
Best for: Buyers who want a freeSync Premium.
Our take Check price for Alienware 34 Curved AW3425DWM (opens in a new tab)
Fastest Refresh
Alienware 34 QD-OLED AW3425DW
The highest refresh rate here (240Hz).
Best for: Competitive shooters where motion clarity matters most.
Our take Check price for Alienware 34 QD-OLED AW3425DW (opens in a new tab)
| Pick | Why it’s here | Best for | Price |
|---|---|---|---|
| A lower price than the AW3425DWM and the rest when we checked. | Keeping the budget tight. | Check price for AOC CU34G4H Curved Ultrawide (opens in a new tab) |
| A freeSync Premium. | Buyers who want a freeSync Premium. | Check price for Alienware 34 Curved AW3425DWM (opens in a new tab) |
| The highest refresh rate here (240Hz). | Competitive shooters where motion clarity matters most. | Check price for Alienware 34 QD-OLED AW3425DW (opens in a new tab) |
Our Picks
Lowest Price Here1 of 3
AOC CU34G4H Curved Ultrawide on Amazon (opens in a new tab)
AOC's CU34G4H is a 34-inch 3440x1440 VA ultrawide at 200Hz on a height, tilt and swivel stand.
Best for
- Keeping the budget tight.
Skip if
- Choose another pick if you can't accept this: a VA panel that can smear dark transitions.
Why we like it
It is the lowest-priced ultrawide here at the time of writing. On refresh rate it sits mid-pack at 200Hz: the AW3425DW offers 240Hz, and the AW3425DWM comes in at 180Hz. It matches the AW3425DWM on screen size (34 inches).
Another plus is 200Hz for smoother motion than a 60Hz office screen. Worth noting too: adaptive-Sync to reduce screen tearing. Another plus is 0.3ms response, the only one here.
It makes the most sense for keeping the budget tight, since it offers a lower price than the AW3425DWM and the rest when we checked. It cost the least of the 3 picks at the time of writing, with the AW3425DWM the next step up.
Key dimensions & specs
- Refresh rate: 200Hz
- Resolution: 3440x1440
- Size: 34 inches
- Panel: VA
- Response: 0.3ms
- HDR: HDR
- Adaptive sync: Adaptive-Sync
- Stand: height, tilt and swivel
Pros
- 200Hz for smoother motion than a 60Hz office screen
- Adaptive-Sync to reduce screen tearing
- a stand with height, tilt and swivel
- 34-inch 1500R ultrawide
Cons
- a VA panel that can smear dark transitions
- Refresh rate of 200Hz, behind the AW3425DW (240Hz)
FreeSync Premium Adaptive Sync2 of 3
Alienware 34 Curved AW3425DWM on Amazon (opens in a new tab)
Alienware's AW3425DWM is a 34-inch ultrawide at 3440x1440 and 180Hz with DisplayHDR 400.
Best for
- Buyers who want a freeSync Premium.
Skip if
- Skip it if refresh rate matters most to you; the AW3425DW offers 240Hz.
Why we like it
It is the lower-priced Alienware ultrawide next to the QD-OLED model. Its 180Hz refresh rate is the lowest in this group; the AW3425DW leads at 240Hz. On screen size it ties with the CU34G4H at 34 inches.
No other pick in this guide offers a DisplayHDR 400; compare the CU34G4H, which has an HDR. You also get a 1500R ultrawide curve, a dedicated console mode and hardware low blue light. Worth noting too: 180Hz for smoother motion than a 60Hz office screen. On price it sat second of 3, between the cheaper CU34G4H and the pricier AW3425DW, at the time of writing.
Key dimensions & specs
- Refresh rate: 180Hz
- Resolution: 3440x1440
- Size: 34 inches
- Response: 1ms
- HDR: DisplayHDR 400
- Color gamut: 95% DCI-P3
- Adaptive sync: FreeSync Premium
Pros
- 180Hz for smoother motion than a 60Hz office screen
- 95% DCI-P3 colour coverage
- FreeSync Premium to reduce screen tearing
- 1500R ultrawide curve
Cons
- Refresh rate trails the AW3425DW (240Hz)
- Screen size trails the AW3425DW (34.2 inches)
- Costs more than the CU34G4H at the time of writing
Fastest Refresh3 of 3
Alienware 34 QD-OLED AW3425DW on Amazon (opens in a new tab)
Alienware's AW3425DW puts a 34.2-inch QD-OLED ultrawide at 240Hz with 99% DCI-P3 coverage.
Best for
- Competitive shooters where motion clarity matters most.
Skip if
- Worth skipping when oLED burn-in risk with static desktop element is a problem.
Why we like it
It pairs OLED contrast with a wide field of view. On refresh rate it leads this guide at 240Hz, ahead of the CU34G4H (200Hz). Nothing else here matches its 34.2 inches screen size; the CU34G4H comes closest at 34 inches.
It is the only pick here with a DisplayHDR True Black 400; the CU34G4H has an HDR instead. It also comes with 1000 nits peak HDR brightness. Leave the maker's pixel-refresh routines enabled and hide static taskbars to limit burn-in risk.
Worth noting too: 240Hz at 3440x1440. It was the most expensive pick when we checked, so weigh what it adds over the AW3425DWM.
Key dimensions & specs
- Refresh rate: 240Hz
- Resolution: 3440x1440
- Size: 34.2 inches
- Panel: QD-OLED
- Response: 0.03ms
- HDR: DisplayHDR True Black 400
- Color gamut: 99% DCI-P3
Pros
- a 240Hz refresh rate for fast motion
- a QD-OLED panel with per-pixel contrast
- DisplayHDR True Black 400 certification
- 99% DCI-P3 colour coverage
Cons
- OLED burn-in risk with static desktop elements
- Costs more than the CU34G4H at the time of writing
How We Chose These 34-Inch Ultrawide Monitors
Each pick was assessed across 4 criteria weighted for real-world use.
- The figures behind the order
- We compared three monitors on refresh rate, resolution, screen size and panel as the makers state them. We did not test them in-house.
- The shared baseline
- All 3, from the CU34G4H to the AW3425DW, state refresh rate, resolution and screen size and share 3440x1440 resolution.
- Where the specs have gaps
- The AW3425DWM gives no panel; the CU34G4H gives no color gamut.
- Price range
- At our last check the picks ran from the CU34G4H ($150 to $250) to the AW3425DW ($500 to $1000).
What to Look for in a 34-Inch Ultrawide Monitor
Key buying criteria so you get the right fit the first time.
How much refresh rate you need
Here refresh rate runs from 180Hz on the AW3425DWM to 240Hz on the AW3425DW. For less, the CU34G4H is the runner-up at 200Hz.
Screen size across these picks
Here screen size runs from 34 inches on the AW3425DWM to 34.2 inches on the AW3425DW. Start with the AW3425DW if screen size decides it.
Response
The CU34G4H lists 0.3ms; the AW3425DWM lists 1ms; the AW3425DW lists 0.03ms. Rule out the mismatches before looking at price.
Features beyond the spec table
The CU34G4H: 200Hz at 3440x1440. The AW3425DWM: a dedicated console mode. The AW3425DW: 1000 nits peak HDR brightness.
Budget
$150 to $250 buys the CU34G4H; $250 to $500 buys the AW3425DWM; $500 to $1000 buys the AW3425DW at our last check.
Size for your desk distance
24 to 25 inches suits 1080p and competitive play at a typical desk. 27 inches pairs well with 1440p and 4K; 32 inches suits 4K at a deeper desk.
How to Choose a 34-Inch Ultrawide Monitor
By priority
| Priority | Consider | Why |
|---|---|---|
| Keeping the budget tight | CU34G4H | A lower price than the AW3425DWM and the rest when we checked |
| Buyers who want a freeSync Premium | AW3425DWM | A freeSync Premium |
| Competitive shooters where motion clarity matters most | AW3425DW | The highest refresh rate here (240Hz) |
Scroll sideways to see every column.
Key specs side by side
The AW3425DW leads on refresh rate at 240Hz, ahead of the CU34G4H at 200Hz. "Not listed" means the maker leaves that figure out.
| Monitor | Refresh rate | Resolution | Size | Panel |
|---|---|---|---|---|
| CU34G4H | 200Hz | 3440x1440 | 34 inches | VA |
| AW3425DWM | 180Hz | 3440x1440 | 34 inches | Not listed |
| AW3425DW | 240Hz | 3440x1440 | 34.2 inches | QD-OLED |
Scroll sideways to see every column.
By price at the time of writing
The CU34G4H was the lowest-priced pick and the AW3425DW the highest when we checked; tiers move with Amazon pricing.
| Price tier | Monitors |
|---|---|
| About $150 to $250 | CU34G4H |
| About $250 to $500 | AW3425DWM |
| About $500 to $1000 | AW3425DW |
Frequently Asked Questions
How does the CU34G4H compare with the AW3425DW on refresh rate?
The AW3425DW leads at 240Hz, with the CU34G4H at 200Hz. The AW3425DWM is at the other end of this group with 180Hz.
Is the AW3425DW ahead of the CU34G4H on screen size?
The AW3425DW leads at 34.2 inches, with the CU34G4H at 34 inches.
Is the AW3425DW worth paying more than the CU34G4H?
On paper it adds refresh rate (240Hz against 200Hz) and screen size (34.2 inches against 34 inches). The CU34G4H was the lowest-priced pick when we checked, so pay the difference only if those gains matter to you.
What makes the AW3425DWM the FreeSync Premium Adaptive Sync?
It earns the label for a freeSync Premium. It suits anyone who wants a freeSync Premium.
Do the CU34G4H and the AW3425DW differ on panel?
The CU34G4H uses VA; the AW3425DW uses QD-OLED. The maker of the AW3425DWM doesn't say.
What should I check before buying the AW3425DW?
Leave the maker's pixel-refresh routines enabled and hide static taskbars to limit burn-in risk. In this guide it ranks third of 3, as our Fastest Refresh pick.
Bottom Line
Our first pick is the CU34G4H, chosen for a lower price than the AW3425DWM and the rest when we checked. Look at the AW3425DWM for a freeSync Premium if those matter more to you.
Some games add black bars; check support first.