Samsung 2493HM Evaluation
The OSD options in general are similar to what we found on the Samsung 245T, though there are some differences. For example, picture-in-picture mode is missing and the options for color control are slightly more limited. Both of these changes are in tune with the "consumer" target audience. One change that we definitely don't like is the button style for the OSD. Put bluntly, we find the OSD buttons to be extremely annoying. There is no tactile feedback, and it can be difficult to see the labels against the shiny LCD bezel. Gateway gets around this by using blue LEDs to show you where the buttons are, but on the 2493HM we always felt like we were searching to find a proper place to "press". There were many occasions where we mistakenly pressed the wrong button. On the plus side, you don't have any buttons clearly visible on the front of your display, and once you have the display set up and configured properly you probably won't need to enter the OSD menus too frequently.
Samsung provides a couple "magic" options in their OSD. MagicBright is simply their name for the preset color/brightness/contrast settings, and there are seven options. Like all the other displays we've tested so far that feature dynamic contrast, we found the net result less than perfect -- color accuracy in particular is horrible when dynamic contrast is enabled (i.e. Delta E of over 12.0 after calibration). We stuck with the "custom" color setting for the remainder of our testing. You also get MagicColor, which again seems to enhance color rendering in contrast at the cost of color accuracy. Color Tone provides for other settings (cool, normal, warm, and custom) and then there's Color Effect where you can have the LCD render in grayscale or sepia tones. (Why you would want that is not something that is immediately clear.) There are also three gamma settings; mode 1 appears to correspond to 2.2 gamma, with modes 2 and 3 providing higher gamma levels.
There
are only two choices for aspect ratio control (listed under Image Size): Normal
and Wide. There is also an "AV mode" setting that enables or disables
overscan on certain resolutions. Again, why anyone would actually want to
enable overscan is beyond us. "Wide" usually stretches your selected
resolution to fill the entire screen, while "Normal" squishes things
into a standard 4:3 aspect ratio. Note that there is no 1:1 setting, so we say "yes"
in the chart below for situations where the chosen resolution fills the screen
properly without any work on the part of the user. Also note that in these cases,
the Image Size functionality is disabled. This means that the 2493HM will always have the wrong aspect ratio on 16:9 resolutions.
| Samsung 2493HM Resolution and Input Notes | |||
| DVI | HDMI | VGA | |
| 800x600 | Set to "Normal" | Set to "Normal" | Set to "Normal" |
| 1024x768 | Set to "Normal" | Set to "Normal" | Set to "Normal" |
| 1152x864 | Set to "Normal" | Set to "Normal" | Set to "Normal" |
| 1176x664 | AV Mode = Overscan to fill LCD more | AV Mode = Overscan to fill LCD more | - |
| 1280x720 | Yes | Yes | Yes |
| 1280x768 | Set to "Wide" | Set to "Wide" | Set to "Wide" |
| 1280x800 | Yes | Yes | Yes |
| 1280x960 | Set to "Normal" | Set to "Normal" | Set to "Normal" |
| 1280x1024 | Set to "Normal" | Set to "Normal" | Set to "Normal" |
| 1400x1050 | Always stretches to fill LCD | Always stretches to fill LCD | - |
| 1440x900 | Yes | Yes | Yes |
| 1600x1200 | Set to "Normal" | Set to "Normal" | Set to "Normal" |
| 1680x1050 | Yes | Yes | Yes |
| 1768x992 | AV Mode = Overscan to fill LCD more | AV Mode = Overscan to fill LCD more | - |
| 1920x1080 | Yes | Yes | Yes |
| 1920x1200 | Yes | Yes | Yes |
Again, the scaling settings are limited as there is no 1:1 or proportional mode. Frequently the 2493HM scales incorrectly without manual selection of the correct scaling algorithm ("Normal" for 4:3 and 5:4 and "Wide" for 16:9 and 16:10). This is a concern with all three input types, though it's noteworthy that HDMI and DVI perform identically during testing. You can set up the "Custom Key" option in the OSD so that it will switch between the two scaling modes (or alternately use the custom key to cycle between the MagicBright, MagicColor, or Color Effect options). We couldn't enable the NVIDIA Scaling options on NVIDIA GPUs for whatever reason - the control panel always reverts to LCD control. (That occurs on some other LCDs, but they usually have better scaling functionality.) The "AV Mode" option seems odd - why would you want overscan? You can use it with 1176x664 and 1768x992, but it's better to use 720P and 1080P in the first place. You will need to disable it on many of the WS resolutions. On the plus side, the VGA auto centering/adjustment is relatively quick and accurate and remembers the settings after the initial setup.
 |
Image scaling did perform well at non-native resolutions, though we would have preferred the presence of 1:1 and aspect scaling as opposed to only getting "Normal" and "Wide". Now let's look at the color accuracy and gamut. Again, note that we disabled MagicColor and used the Custom setting on MagicBright and Color Tone.
Color gamut is the lowest of any of the tested LCDs today, coming in at 75% of Adobe RGB 1998. As a consumer display, however, this shouldn't be a major problem - sRGB has a much smaller color space, and the 2493HM gamut is fine for normal use. There are two sides to the color accuracy story. On the one hand, calibrated color is pretty mediocre, with an average Delta E of 1.8 and several colors in the 3.0 and above range. The uncalibrated colors on the other hand score almost the same as the calibrated colors, with an average Delta E of 2.4. That puts the 2493HM in second place among tested LCDs for uncalibrated color accuracy.
To Samsung 2493HM more or less lives up to its billing as a consumer LCD. It doesn't have all the high-end features that we find on displays like this Dell 2408WFP, but the default color accuracy is quite impressive and you also avoid the input lag that we measured on all the S-PVA panels. Online prices start at only $450, including a 3-year manufacturer warranty. Outside of demanding image professionals, we think the 2493HM is a great choice for a display that provides accurate colors at an extremely attractive price. Depending on whether you prefer glossy or matte finishes on your LCD panel, it's really a tossup between the Gateway FHD2400 and the 2493HM.
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JarredWalton - Tuesday, May 6, 2008 - link
But that's exactly what I did in this review. Unless you mean a high-speed video camera that can record the changes in response to external stimuli (i.e. someone clicking a mouse).I think way too many people are losing sight of the forest because they're obsessing over the trees. I've given relative input lag, and it's accurate to 10ms for sure (and with averaging it should be accurate to around 3ms). At some point I may find an LCD that has a negative lag relative to the HP LP3065, and that's fine. As it stands, the best LCDs equal that LCD's lag.
Input lag as a whole is only one consideration of a display purchase, and differences of 3ms (or even 10ms) are not going to make you suddenly superior in games. 50ms? Sure, that's a potential problem, but anyone who has played online FPS games competitively knows that you have to learn to anticipate in order to compensate for network lag that may be anywhere from 50 to 150ms even with a high-speed connection.
If you want a display that offers minimal processing lag, so far the TN panels and 30" LCDs do great. I'd assume all the 22" LCDs do reasonably well, but having none in house at present I can't say for sure. Then everyone with S-PVA panels can call you an LPB.
jmunjr - Friday, May 2, 2008 - link
Though there are reports it now uses a TN panel, I am disappointed the Soyo Topaz S was not in this review. A bare bones S-PVA monitor for as low as $250 and easily $300 with no rebates? Ring me up! I have one and for the price it cannot be beat - period. At 24" TN monitors have too many shortcomings.bupkus - Friday, May 2, 2008 - link
I read this article this morning and then my gf calls me an tells me she has a $100 Dell credit that expires tonight.I thought, why not sell my Samsung SyncMaster 225BW and get this UltraSharp 2408? Starting Price... $679.00, that's why.
However, the E248WFP is on sale for $379.00. How does that compare?
Dashel - Friday, May 2, 2008 - link
Count me among those who want to know if it's even possible a revision will address the input lag on the Dell 2408. That's all that is holding me back from buying this monitor.Can they even get it down to 2407 input lag levels?
Finally BenQ G2400W, see if they wont give you one to review! That's my back up plan if the Dell doesnt pan out ;)
JarredWalton - Friday, May 2, 2008 - link
The best S-PVA panel has a 20ms lag on average. Note also that the Gateway FPD2485W uses a Faroudja chip and ends up with 20ms while the TN FHD2400 uses a Faroudja and gets ~0ms and LaCie does the same and gets 40ms. My guess is that somehow in the interest of colors or something else the S-PVA tech is delaying what you see on the LCD. The built-in scalers may also be inducing some delay, but the TN panels have scalers as well and don't suffer from any lag.Dashel - Saturday, May 3, 2008 - link
Isnt the 2407 an S-PVA as well though? You'd think they'd be able to at least match that level of input lag. That'd be enough to make me confident enough to buy one.As it stands, I'll have to see what revision A01 brings. I'll probably get one anyway. No 24" seems to have everything I want sadly. Good gaming non TN panel with plenty of inputs. The 2408 or that DoubleSight seems to come closest.
GTVic - Friday, May 2, 2008 - link
I would like to know if it is possible for game developers or hw manufacturers to develop controls in the games or in the driver control panel that would allow an adjustment for input lag. That way if you know you have a certain lag you can tell the game/driver to compensate.PPalmgren - Friday, May 2, 2008 - link
I highly doubt this would be possible.When I first hooked up my NEC 2470WNX, I played some DotA in (a Warcraft 3 map) and noticed after 5 minutes that I couldn't click on anything as well as usual. The funny thing is this isn't really aim-intensive, being an FPS. I tested it out and realized my mouse's response was delayed on the screen. I then noticed the same problem playing BF2 and NS a day later. It becomes impossible to aim quickly because you aim based on where your cursor is visible. However, your cursor is not where you see it on the screen, its still moving. Its a constant fight of over-compensation ruins your gameplay. The next week, I put my old Viewsonic 19' back up and still use it for games. I STRONGY suggest buying a TN panel for games, having experienced the short end of the stick.
GTVic - Friday, May 2, 2008 - link
I think it certainly should be possible.There a maybe a few types of lag. One is due to an overloaded graphics card that is not able to draw enough frames per second to properly update your mouse position so you don't know what you are shooting at. There is nothing to be done about that except buy a better graphics card or reduce the resolution/quality.
The other type of lag is when the game thinks one frame is being displayed and due to delays down the chain an older frame is being displayed. The game records your mouse click (gun fire) and calculates whether you hit the target based on the wrong frame.
The lag is not enough to cause the audio to be out of sync but if the game knew that the display was constantly 3 frames behind then it should be possible to correct the problem. Would be nice if Jared could investigate that with ATI/nVidia/game devs.
Dainas - Friday, May 2, 2008 - link
Oh you don't have to go to TN, I have two 24" P-MVAs that suffer from none of the blatant lag in the aforementioned panels. Both are verifiably faster than the 20ms 2407wfp and coming from a CRT I had none of the loose feeling in fast FPS like CS:Source and CoD4. All these slow panels are more in the realm of 40ms.need only look at this to know TNs do not have an unavoidable technical advantage over VA panels and its likely the manufactures putting IQ over response in most cases ;
http://www.digitalversus.com/article-357-3215-303....">http://www.digitalversus.com/article-357-3215-303....
But then again considering these panels are dissapearing from the market one might have to go TN afterall for gaming.