Overlord Tempest X270OC, 27" 120 Hz IPS Gaming Monitor Review

Results: Pixel Response And Input Lag

To perform these tests, we use a high-speed camera that shoots at 1000 frames per second. Analyzing the video frame-by-frame allows us to observe the exact time it takes to go from a zero-percent signal to a 100% white field.

We had to do things differently for this review since our pattern generator maxes out at 60 Hz. So, we filmed a mouse movement that triggers the field pattern’s appearance. Since this is less precise than using the generator, we averaged five measurements.

Here is the screen draw result:

At 120 Hz, the draw time is about two-thirds faster than a typical IPS panel’s time of 25 milliseconds. Needless to say, the reduction in motion blur is more than subtle. We ran through many of the tests at blurbusters.com and saw clear improvements in all of them when running at 120 Hz versus 60.

Here are the lag results:

All of the high-refresh displays we’ve tested, including the Tempest, demonstrate extremely low input lag. Consider the advantages enjoyed by the AOC, BenQ, and Asus VG248QE. They employ TN panels with 6-bit/FRC color depth. And they’re only driving a resolution of 1920x1080. The Tempest is IPS. It’s a full 8-bit panel. And it’s refreshing 44 percent more pixels. Now that’s impressive. A price tag of $450 is just icing on the cake.

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107 comments
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    Top Comments
  • I wonder why they don't just have another model with cherry-picked panels that they ship at 120 out of the box
    12
  • Other Comments
  • the price is interesting with these specs !
    any idea if there will be a similar monitor spec but 4k resolution ?

    thanks,
    2
  • the price is interesting with these specs !
    any idea if there will be a similar monitor spec but 4k resolution ?

    thanks,
    -6
  • Crickey me...this is a monitor of note it seems! At that price point, I find it incredible. Well done to Overlord! The only issue I have now is... will the price increase as a result of all the buzz this will generate? This is probably going to be my next monitor, depending on exchange rates...
    5
  • 4K at 120 MHz? Not in the next 5 years.
    -8
  • Driving QHD to 120 FPS at the max graphics detail is sure as hell will require A LOT of horsepower. Will TOP-SLI/CF-x2 be enough for modern FPS games?
    3
  • Wow, you get this with one of the variable sync techs and you have yourself one fantastic monitor.
    2
  • Thank you Thank you Thank you. I've been dying to see a review on this monitor.
    6
  • Yeah, I've been waiting fir this for too long. I wanted one of these months ago but they have been out of stock. Such a sweet deal
    2
  • This is the holy grail of PC monitors, if only it comes with 120 Hz guaranteed out of the box.
    7
  • I wish it had a strobe backlight though, that would make it perfect
    3
  • If it had an option for Display port, that would have been almost perfect. That being said, I use DVI anyway, so who am I to complain.
    5
  • This is already a step at the good direction. Even the price in $ looks decent.
    Question is how much will this cost here in Europe.

    Also, now make the same thing happen in a 30" format with 2560x1600 resolution, and than I am definitely opening my wallet.
    2
  • MonsterCookie, alas I doubt that will happen. A few years ago, 1440 and 1600
    height monitors were priced basically the same, ie. expensive. Back then, top-end
    GPU reviews tended to use 2560x1600 as a typical max res test for gaming. But
    then buying patterns evolved, the usual feedback between pricing and demand,
    people tended to opt more and more for 1440 displays instead. As a result, when
    I wanted to get a 1600 IPS a while ago, I was amazed to find 1600 hieght displays
    were about 4X more expensive than 1440 IPS models.

    Presumably it suits the industry to home in on a more typical standard, and for
    the moment, beyond HD, 2560x1440 seems to be it. Very unlikely the industry has
    any interest in pushing 1600 height to the masses, so probably the next main step
    up will be to 4K, or as I wish they'd call it instead, quad-HD.

    Ian.
    2
  • The specs look goood, but the key is they don't guarantee 120Hz for all OC monitors:
    http://overlordcomputer.com/blogs/news/7384176-the-overclock-overview

    It's like hoping you'll get an i7 that will have a stable OC to 4.5Ghz 24/7. It's the luck of the draw.
    I don't much like putting my money on hope. If they did have a guarantee or just sold a monitor that shipped to my house with 120Hz capability, I'd be more likely to hand over my cash.

    You know darn well they make sure the review site is getting a good one.
    2
  • So does it work fine at say 90Hz and if so is that an improvement?
    1
  • Thanks a million for the review! This will be next monitor. Hallelujah! Lacking a decent non-TN gaming panel, I've played with a pro 24" CRT for all these years.
    1
  • A few answers and corrections concerning ideas thrown around in this thread:

    1) Yes, This works perfectly at 90Hz. Yes, it is a great improvement. Much greater improvement is 60->90 than 90->120.

    2) All monitors are from this day to the future to come 16:9. So, its useless to fancy 16:10 monitors anymore, they wont be coming ever again.

    3) 4K 120Hz gaming monitors wont be coming, either. At least not in the foreseeable future.

    4) Overclocking this is not luck of the draw. They all come at least 96Hz, and the great majority work 120Hz.

    5) The lack of displayport etc is what helps keeping input lag low.
    3
  • I wonder why they don't just have another model with cherry-picked panels that they ship at 120 out of the box
    12