REVIEW: Dell U2711
++ very good, + good, +/- satisfactory, - bad, -- very bad
The U2711 is DELL’s latest youngster in the computer LCD sector. We have had the opportunity to test it thoroughly before its market launch. Whilst no major optical changes have been made compared to the model’s predecessor, (2709W), this monitor is a completely new product in terms of technology. The 27-inch H-IPS panel has an unusually fine resolution at 2,560 x 1,440 pixels. Since the pixel aspect ratio is of course still square, the screen has an aspect ratio of 16:9. The 2709W used an S-PVA panel with 1.920 x 1.200 pixels.
Dell U2711, manufacturer’s product photo. (Picture: Dell)
The numerous signal inputs leave little to be desired. The computer is primarily connected via DVI-D or DisplayPort. For analogue and digital video sources, a HDMI, YPbPr, and Composite input are available.
DELL has also upgraded in terms of electronics: Like the still new U2410, the U2711 also contains a 12-Bit LUT. Furthermore, DELL advertises the model as having a colour depth of 1.07 billion colours. This may indicate a real 10-bit panel – but not necessarily (see the review of the Eizo CG243W). Fundamentally, an 8-Bit panel would not be very problematic, since the range of hues is "saved" through suitable dithering measures. The use of the powerful electronics has also made it possible for DELL to implement two colour space limited image modes ("sRGB" and "AdobeRGB"), which should ensure acceptable colour display in unmanaged environments.
From the datasheet we have for the panel used, we can see that it is actually an 8-Bit panel. The FRC implementation was only transferred to the panel by the scaler. Thus, it is the same implementation as with LG. The use of the powerful electronics allows DELL also to implement two image modes which limit the colour space ("sRGB" and "AdobeRGB"), which should allow for convenient colour display in unmanaged environments.
After unpleasant spatial dithering side effects arose in the first revision of the U2410, we are curious to see whether or not DELL can avoid this faux pas on the U2711 from the outset. Overall, the DELL U2711 can be recommended, at least on paper, for highly ambitious CEPS and "poaches" in the region of the Eizo SX and NEC 90 series. However, this is also reflected in the price.
All results in the test were obtained via the digital output of an nVidia Geforce GTX 280 from Gainward. A Lumagen RadianceXD and an iScan VP50 were used to test the video functions. In addition, an OPPO DV-980H was used as a DVD player and a Sony S350E was used to play Blu-rays. The colorimetric measurements were carried out with a spectral photometer (EyeOne Pro). A colorimeter (X-Rite DTP94) was used to measure the minimum black value.
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