Dell 2408WFP Evaluation
Looking at the OSD, the 2408WFP again follows in the footsteps of the 2407WFP. It comes with seven color presets, which can be further modified by selecting "graphics" or "video". PC and Mac gamma settings are also available. Picture-in-picture (PIP) is also available, provided one of the inputs is an analog connection.
You can see the various options available in the menu system in the above gallery. In terms of OSD buttons, we prefer Dell's approach to any of the other LCDs we've tested. Some people like "cloaked" touch-sensitive buttons, but we feel they tend to be less precise. Noteworthy items include DDC/CI support that can be used with calibration software and the options for aspect ratio control. This happens to be the first LCD we've tested that we were able to calibrate using DDC mode in ColorEyes Display Pro -- not that the results were significantly better, but it was nice to be able to input target values and have the software do the "dirty work" for us. About the only option that's missing is the ability to move the OSD away from center. (It can interfere with color calibration if you activate it with a colorimeter at the center of the LCD.)
For aspect ratio control, Dell provides three options: 1:1, Aspect, and Fill. Similar to the ASUS MK241H, "Fill" stretches whatever resolution you're running to fill the whole screen and "1:1" is a direct-mapped mode without any stretching, leaving black bars on all sides (depending on what resolution you're running). "Aspect" is a proportional stretch mode that maintains the resolution aspect ratio, so for example 1024x768 ends up filling 1600x1200 pixels (as do all other 4:3 aspect ratio resolutions) and 1280x1024 ends up filling 1500x1200. Here's a summary of our resolution testing:
| Dell 2408WFP Resolution and Input Notes | ||||
| Component | DVI | HDMI | VGA | |
| 800x600 | Yes | Yes | Yes | |
| 1024x768 | Yes | Yes | Yes | |
| 1152x864 | Yes | Yes | Yes | |
| 1176x664 | Underscanned 720P | - | Underscanned 720P | - |
| 1280x720 | Overscans (no way to disable) | Yes | Yes | Yes |
| 1280x768 | - | Wrong AR (1280x1024); Use "Full" scaling | Yes | |
| 1280x800 | Wrong AR (1280x1024); Use "Full" scaling | Wrong AR (1280x1024); Use "Full" scaling | Yes | |
| 1280x960 | - | Wrong AR (1280x1024) | Yes | |
| 1280x1024 | Yes | Yes | Yes | |
| 1400x1050 | - | Wrong AR (1920x1080) | - | |
| 1440x900 | Wrong AR (1600x1200); Use "Full" scaling | Wrong AR (1920x1080); Use "Full" scaling | Yes | |
| 1600x1200 | Yes | Yes | Yes | |
| 1680x1050 | Always fills LCD ("Full") | Wrong AR (1920x1080); Use "Full" scaling | Yes | |
| 1768x992 | Underscanned 1080i | - | Underscanned 1080P | - |
| 1920x1080 | Overscans (no way to disable) | Yes | Yes | Yes |
| 1920x1200 | - | Yes | Yes | Yes |
Most of the tested resolutions more or less work properly on any of the three main computer inputs. VGA mode performs flawlessly, while on DVI and HDMI inputs some of the widescreen resolutions require you to manually select "Fill". If you want a 1:1 image, a few resolutions have problems on DVI and most of the lower widescreen resolutions fail to work in this mode. As with all LCDs, there's an "auto adjust" function that executes when you change resolutions while using an analog input (i.e. VGA). This function works as expected and takes a couple seconds to execute; it apparently remembers the last 10 resolutions you've used; otherwise, the auto adjustment runs again.
Component input is rather disappointing, as 720P and 1080I both have ~10% overscan; using a PC, you can output 1176x664 or 1768x992 to avoid this, but if you're using a computer you will probably want to use one of the other input options. Even then you still end up with a black bar on the right. The 30Hz HDMI modes all overscan as well (1280x720, 1400x1040, 1440x900, 1680x1050, and 1920x1080) and show scaling/de-interlacing artifacts; in other words, don't use them if you can avoid it. Overall, 1080I seems better than 720P on the component video connection, so if you plan to connect the LCD up to a component video source, we would run 1080I.
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As you can see in the above image, scaling artifacts from over resolutions are not a serious problem. Running at the native resolution is definitely preferred, but if you happen to run a game at a lower resolution you should be fine. Connecting a gaming console to any of the inputs should also work well, but keep in mind the aspect ratio comments from above.
Taking a quick look at color accuracy and gamut, the overall color accuracy is exceptional. If you look at the above results, you might not believe that we were able to achieve a Delta E of only 1.7 without calibration! Yes, that's right: without hardware calibration, the Dell 2408WFP can surpass many other LCDs with hardware calibration. Just to be clear, we set the brightness and contrast to 50, selected the custom color profile, and dropped the RGB settings to 80; otherwise, the default settings tend to be quite bright. After calibration, scores further improve to an extremely low 0.78 average. The highest Delta E after calibration is only 1.31. Color gamut is also exceptional, and this is the only display we've tested so far that achieves better than 100% of the Adobe RGB 1998 standard.
Simply put the colors and color accuracy of the Dell 2408WFP absolutely blew us away. If you're an imaging professional and you're using Windows (we have heard there can be some issues with high gamut LCDs under Mac OS X, particularly with the Safari web browser), this is the best LCD we've tested so far. Perhaps more surprising is the fact that you can pick it up for only $600 (at least with the current sale -- MSRP is usually $700). Top that off with a 3-year manufacturer warranty and you've got a delicious LCD soup ready to serve up. The only fly in the ointment is the aforementioned input lag, which could present problems if your primary computer applications or games and your reflexes are so honed that you can notice the ~30ms lag. If that's the case, you'll probably need to compromise on image quality and pick up a TN panel LCD.
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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.