SyncMaster P2070 Performance
The monitor has 100% brightness and 75% contrast by default. I achieved a 100nit white by selecting 55% brightness and 60% contrast. The monitor regulates its brightness by means of pulse-width modulation of the power of the backlight lamps at a frequency of 180Hz.
Just like the 50 series, the monitor has no RTC at all in the Normal mode, the resulting response time average being 15.3 milliseconds (GtG).
We now have a Still mode instead of Faster but its effect has not changed: the RTC mechanism shows moderate aggressiveness here, with a response time average of 5.0 milliseconds (GtG). There is no RTC at all on black-to-gray transitions.
Only some of the transitions are performed with a miss, so the average miss is low at 7.5%.
The average pixel relaxation time after an RTC miss is 10.8 milliseconds, which is acceptable (although I’ve seen better results).
The Movie mode enables RTC for almost every transition, which makes the monitor much faster with an average response of 2.8 milliseconds (GtG).
Unfortunately, each transition is accompanied with an RTC miss. The average miss is as high as 20.3%.
The pixel relaxation time grows up to an average 24 milliseconds, which is as long as one frame and a half! As a result, although the Movie mode accelerates the monitor almost twofold, most users are going to prefer the Still mode due to the low level of RTC-provoked artifacts. In the Movie mode, such artifacts are conspicuous in both games and office applications.
I did not spot any input lag on the SyncMaster P2070 in comparison with a Samsung SyncMaster 710N which has zero input lag.
Brightness and Contrast
The P2070 proves to have a lower maximum brightness than the P2050, but that’s exactly what their specs promise. There is going to be almost no practical difference, however. A brightness of 238 nits is high enough for using the monitor under any ambient lighting unless you are going to watch a movie under direct sunlight.
The average nonuniformity of white brightness is 7.3% with a maximum deflection of 18.7%. For black brightness, the average and maximum are 6.4% and 23.9%, respectively. There is a brighter area in the bottom part of the screen while the sides are darker than the center. This pattern differs from the one of the P2050 which may be due to the difficulty of packing an LCD panel into the slimmer 70 series case.
The color gamut diagram is similar to what the previous models have shown. It is generally the same as sRGB, being somewhat smaller in blues and somewhat larger in reds and greens.
At the default settings the gamma curves are not perfect but neat, running near the theoretical curve for gamma 2.2.
There are no significant changes at the reduced settings.
We see a familiar picture again. The difference between the different grays is small in each predefined color temperature mode, but there is excessive green in each of them. I got rid of that problem by manually selecting R=50, G=43, B=50 and Contrast=50 in the monitor’s menu.
The table with numbers shows that there is indeed a very small difference between the different levels of gray. This is good but the SyncMaster P2050 has delivered the same result.
The Text mode is too bright for working with text comfortably, so it should better be used for viewing photographs and watching movies. I can find no other fault with the other MagicBright modes. This is a very handy feature if you use the monitor at home and often switch between text-based applications (office applications or websites), photographs, movies and games as it allows changing the monitor’s brightness quickly without entering the main menu. The only parameter that changes besides brightness is color temperature which is set at Cool in the Sport mode, Warm in the Movie mode and Normal in the remaining modes. Thus, MagicBright does not affect color accuracy.