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

Results: Color Gamut and Performance

Color gamut is measured using a saturation sweep that samples the six main colors (red, green, blue, cyan, magenta, and yellow) at five saturation levels (20, 40, 60, 80, and 100%), providing a realistic view of color accuracy.

We like the un-calibrated chroma results better than the grayscale ones. Aside from an oversaturated blue primary, most points come fairly close to their targets. You can see a little under-saturation happening in red, but it’s not egregious. Luminance is properly used to compensate for the CIE chart errors. It'd only take a couple of tweaks to the RGB sliders, if there were any, to improve this.

CalPC turns average color into perfection with its custom LUT. We just can’t get measurements like this out of an OSD-based setup. Comparisons become a little unfair, since there's equipment needed to replicate our work. But with no other way to calibrate the X270OC, we don’t have a choice.

We return to the comparison group:

Given the visual representation above, an average error of .53 Delta E is no surprise. It can’t get much better.

Gamut Volume: Adobe RGB 1998 And sRGB

There are basically two categories of displays in use today: those that conform to the sRGB/Rec. 709 standard like HDTVs, and wide-gamut panels that show as much as 100 percent of the Adobe RGB 1998 spec. We use Gamutvision to calculate the gamut volume, based on an ICC profile created from our actual measurements.

Since none of the primaries are under-saturated, CalPC nearly hits 100-percent sRGB gamut volume. If we ran this test on an un-calibrated X270OC, its volume would be around 105 percent.

The Tempest is one of the least-expensive 27-inch IPS screens available. Even though it’s a gamer-oriented screen, it could work well in a photo-editing environment, so long as the wider Adobe RGB gamut isn't needed and you perform a software LUT calibration.

Create a new thread in the US Reviews comments forum about this subject
This thread is closed for comments
107 comments
    Your comment
    Top Comments
  • rishiswaz
    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
  • oudmaster
    the price is interesting with these specs !
    any idea if there will be a similar monitor spec but 4k resolution ?

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

    thanks,
    -6
  • wtfxxxgp
    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
  • Shneiky
    4K at 120 MHz? Not in the next 5 years.
    -7
  • Swiperd3
    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
  • Traciatim
    Wow, you get this with one of the variable sync techs and you have yourself one fantastic monitor.
    2
  • envy14tpe
    Thank you Thank you Thank you. I've been dying to see a review on this monitor.
    6
  • Reaver192
    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
  • avatar_raq
    This is the holy grail of PC monitors, if only it comes with 120 Hz guaranteed out of the box.
    7
  • yogalD
    I wish it had a strobe backlight though, that would make it perfect
    3
  • Durandul
    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
  • MonsterCookie
    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
  • mapesdhs
    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
  • ubercake
    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
  • daglesj
    So does it work fine at say 90Hz and if so is that an improvement?
    1
  • npyrhone
    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
  • npyrhone
    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
  • rishiswaz
    I wonder why they don't just have another model with cherry-picked panels that they ship at 120 out of the box
    12