AOC I2757Fh And ViewSonic VX2770Smh: Two 27" IPS Monitors

Results: Gamma And ANSI Contrast Ratio

Gamma

Gamma is the measurement of luminance levels at every step in the brightness range from 0 to 100 percent. This is important because a poor gamma can either crush detail at various points, or wash it out, making the entire picture appear flat and dull. Correct gamma produces a more three-dimensional image, with greater depth and pop. Meanwhile, incorrect gamma can negatively affect image quality even in monitors with high contrast ratios.

We took gamma measurements at eleven different brightness levels from 0 to 100 percent. An average value of 2.2 is the best match for video and gaming content. Since gamma is a new metric for us, we don’t have any historical data available for comparison.

AOC performs slightly better in this measurement, staying closer to its average value of 2.2. Of the three gamma presets on the I2757Fh, the default gamma 1 setting is the best; the other two are a good deal off the mark.

Because some monitors fluctuate at different points in the brightness range, we also include the range of gamma values. A lower range number indicates superior gamma tracking.

While ViewSonic doesn’t offer any gamma controls on the VX27770Smh, the measurements are only slightly less accurate than the AOC panel.

ANSI Contrast Ratio

Another important measure of contrast is ANSI. While we haven’t previously included this benchmark, it will appear in this and all future monitor reviews. To perform this test, a checkerboard of sixteen 0 and 100 percent squares are measured. This is somewhat more real-world than on/off measurements because it tests a display’s ability to simultaneously maintain both low black and full white levels, and factors in screen uniformity. The average of the eight full-white measurements is divided by the average of the eight full-black measurements to arrive at the ANSI result.

Once again, ViewSonic maintains its lead in the contrast category.

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  • Nintendo Maniac 64
    In other news, Micro Center and Monoprice have 27" monitors @ 2560x1440 for just under $400, both of which are based off the inexpensive 27" Korean monitors but come with a US warranty:

    Micro Center - AURIA EQ276W 27" IPS LED Monitor @ $399.99
    Monoprice - 27" IPS LED CrystalPro Monitor WQHD @ $390.60

    Surely that's the comparison readers really want to see. Get on it Tom's!
    26
  • kinggremlin
    Unless you're legally blind, why would anyone want a 27" 1920x1080 monitor? I still don't get why one industry thinks we need 1920x1080 on a 5" cell phone, while another thinks 1920x1080 is all the resolution you'll ever need no matter how big your screen.
    25
  • Anonymous
    1920x1080?

    Next.
    22
  • Other Comments
  • Anonymous
    1920x1080?

    Next.
    22
  • kinggremlin
    Unless you're legally blind, why would anyone want a 27" 1920x1080 monitor? I still don't get why one industry thinks we need 1920x1080 on a 5" cell phone, while another thinks 1920x1080 is all the resolution you'll ever need no matter how big your screen.
    25
  • Nintendo Maniac 64
    In other news, Micro Center and Monoprice have 27" monitors @ 2560x1440 for just under $400, both of which are based off the inexpensive 27" Korean monitors but come with a US warranty:

    Micro Center - AURIA EQ276W 27" IPS LED Monitor @ $399.99
    Monoprice - 27" IPS LED CrystalPro Monitor WQHD @ $390.60

    Surely that's the comparison readers really want to see. Get on it Tom's!
    26
  • Anonymous
    I bought myself Achieva Shimian QH270-Lite on ebay and it is a 2560x1440 monitor with 6ms response time. Its basically a rejected apple monitor with no frills and no warranty (sold in Korea for $200). I doubt monitor manufactures will release 2560x1440 monitors at mainstream prices within the end of this year, as Intel predicted. Or 4k monitors by 2015.

    Here are some links to sites dedicated to these 27" 2560x1440 monitors:

    http://www.overclock.net/t/1215866/reviewed-400-2560x1440-ips-no-ag-90hz-achieva-shimian-qh270-and-catleap-q270
    http://hardforum.com/showthread.php?s=555ec44784c7ce14633a870f574d2b48&t=1675393
    http://www.overclock.net/t/1228062/achieva-shimian-monitor-club

    If you you would like to know more how your graphics card, monitor perform on 1440P and above resolution with certain games, go to to this link:

    http://www.overclock.net/t/1291882/1440p-and-above-gaming-club-1440p/0_100
    10
  • grokem
    Thanks for the review. These do look like very good choices for those that don't need a gaming monitor. No offense to this review as I do think it serves a purpose and will be useful to many. However, I think I'm going to quit reading monitor reviews for a couple of years. Maybe by then my 15 year old monitor and my 10 year old ~$500 LCD will be surpassed by something new and better.
    1
  • Nintendo Maniac 64
    Anonymous said:
    However, I think I'm going to quit reading monitor reviews for a couple of years. Maybe by then my 15 year old monitor and my 10 year old ~$500 LCD will be surpassed by something new and better.

    They already have been surpassed, but the tech is expensive currently:
    Sony PVM2541 25-inch Professional OLED Picture Monitor
    0
  • bavman
    Pass. 27'' is way to big for 1080p, needs 1440 at the minimum.

    Manufactures need to stop making 1080p monitors. With 4k around the corner, it should be at least 1440 or 1600 now. Were not gonna get anywhere until someone finally starts to really mass produce higher res monitors
    13
  • abbadon_34
    Remember when CRT's supported tons of resolutions and refresh rates, more than most could handle? Then trendiness and HDCP got in the way.
    7
  • zander1983
    Nintendo Maniac 64They already have been surpassed, but the tech is expensive currently:Sony PVM2541 25-inch Professional OLED Picture Monitor


    Still 1080p, pass.
    6
  • Nintendo Maniac 64
    Anonymous said:
    They already have been surpassed, but the tech is expensive currently:
    Sony PVM2541 25-inch Professional OLED Picture Monitor

    Anonymous said:
    Still 1080p, pass.


    It's a 24" monitor, what did you expect? (they market it at 25" but it's really 24 5/8")

    If they come out with a 27-30" monitor, surely it'd be 2560px wide since they are professional-level displays.
    2
  • merikafyeah
    Nuts to that1920x1080?Next.

    I don't see many people complain about their 60" 1080p TVs.
    60" is waaay bigger than 27". Maybe sit just a tiiiiiiiny bit further from your screen?
    -3
  • hytecgowthaman
    5Ms aoc is good for gaming monitor at low cost.
    please put the information how much mhz it can handle (to compare good gpu for that) .
    15" aoc run at 300mhz in aoc monitor software.
    -2
  • hytecgowthaman
    Aoc monitor low cost and 5ms but viewsonic 7Ms and high cost. but both give 3year warranty.
    -3
  • redgarl
    PC monitors are a dying bread for the common home user. I switch to an HDTV with 120Hz... the only drawback is input lag... man I didn't see this one comming especially at 1080p.

    It's not bad at all for single player games, but if you play Counter-Strike intensively, maybe not a good idea. But anything other than FPS online is not a real matter.

    Get a good Samsung HDTV and get rid of the office. There is some awesome logitech products for input device that let you transform your desktop into a gaming HTPC.
    -7
  • wanderer11
    I just got an Auria 2560x1440 two weeks ago and I could never go back to 1920x1080 now.
    3
  • techbaddie
    I also just got an Auria 2560x1440 last week, and I could never go back to 1080 either. The Auria dominates! Shreddder style
    4
  • EDVINASM
    Didn't know this site was full of tech gurus with deep pockets. I will go for this 27" never mind that it's "only" 1080p - I need TV replacement and this will do just fine, especially being IPS panel for such a low cost. Heck even my ASUS 278Q or whatever model is dearer. Any 2560x1440 monitor that is not made in meat factory would cost nearly twice as much so.. Until 4k becomes standard I am fine with 1080p.
    1
  • truprecht
    I bought myself an Auria for Christmas - it's awesome. Huge, bright, crisp, and not one dead pixel. For $300 less than DELL/HP and $600 less than Apple's product using the same LG IPS panel.
    2
  • nukemaster
    Can anyone with those Auria screens comment on if they have noticeable off angle glow?

    Image of an Asus(I know it was e-ips, but it was BAD, even TN did better then this thing. This was MAX bright vs 26% on the other screen) I had next to a Samsung S-PVA. The glow was extreme even at slight angles and the card color reproduction was just awful.
    http://imageshack.us/a/img441/4199/dsc0262dr.jpg
    http://imageshack.us/a/img600/7891/dsc0252jn.jpg
    0
  • chumly
    ....or spend the same money on a 1440p LG panel by one of the thousands of manufacturers out of Korea or China (or Overlord here in the states) instead of wasting your money on old, out-dated tech.
    -1