ASUS Zenbook Prime (UX21A) Review: The First of the 2nd Gen Ultrabooks
by Anand Lal Shimpi on May 22, 2012 2:46 PM EST- Posted in
- Laptops
- CPUs
- Asus
- Ivy Bridge
- Zenbook
- Zenbook Prime
- Ultrabook
- Notebooks
The Display in Numbers
The new 1080p panel looks good, but does it make any sacrifices in its performance? Thankfully, no. Max brightness is down a bit compared to the previous generation, but it's still higher than any of the portable Macs and much higher than your typical PC displays. Black levels are much improved over the original Zenbook as well:
The resulting contrast ratio is almost tablet-like:
It's not just the basics that ASUS delivers well on, color accuracy is top notch:
Color gamut is shy of the MacBook Pro but much better than the previous Zenbook and the MacBook Air:
Size is definitely an issue here. While I think the 1920 x 1080 panel will be a very good fit for the 13.3-inch UX31, there's a smaller subset of folks who are going to appreciate it in the 11.6-inch UX21. Personally I think it's fine but at 189 PPI the 11-inch Zenbook Prime is going to be a tough sell for those who have a tough time looking at small text.
Text on the 11-inch 1080p panel
ASUS' solution is to ship the UX21 with Windows set to 125% DPI scaling by default, unfortunately most applications (including many of Microsoft's own) don't deal with non-integer DPI scaling very well.
Here's what the default desktop looks like at 125%:
And here are examples of applications that don't behave well with Windows 7's DPI scaling:
In Skype, some text elements are tiny while others are huge. PCMark Vantage is an example of where you see this as well:
Here the scaled text actually can't fit in the area allocated for it, while the rest of the text is entirely too small.
There's not much you can do to work around this today with Windows 7. You're either going to have really small text or have to deal with funny scaling. This is unfortunately a major downside to not controlling the OS layer, ASUS is at the mercy of Microsoft to get scaling for displays with high pixel densities right. Windows 8 should be better in this regard but I ran out of time to try it out on the Zenbook Prime before the embargo lift.
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netmann - Saturday, June 9, 2012 - link
Anand did not open the bottom panel of UX21A this time around! But, I am curious to see if the SanDisk U100 is still the Gum Stick or the mSATA form factor. The SanDisk website does not show the Gum Stick type, only the mSATA and mini mSATA!If the SSD in UX21A is mSATA it can easily be upgraded with faster one such as Mushkin Atlas mSATA SSD. If U100 is Gum Stick perhaps it can be swapped with A-Data XM11 from previous Zenbook laptops or perhaps Runcore Rocket Air SSD. Your thoughts?
amosbatto - Sunday, June 10, 2012 - link
In GNU/Linux, you don't have the DPI scaling problem in menus, since its desktop environments let you set any font type and font size you want. Windows doesn't let you configure hardly anything.Anyone have any idea how well GNU/Linux supports this hardware? Since it is mostly stock Intel parts, I suspect that processor and graphics support is pretty good, but it would be nice to know if things like switchable TDP are possible. More importantly, does suspend and hibernate work correctly? How is the battery life in GNU/Linux.
And then there is the problem of touchpads, webcams, special buttons, etc. It would be really nice if review sites would list all the internal parts so we can google them and figure out what is supported in GNU/Linux, BSD, Haiku, etc. Not everybody likes to live in proprietary prisons.
amrs - Tuesday, July 31, 2012 - link
There are some issues with Linux but seem to be fixes too. Seems usable to me.See http://ubuntuforums.org/showthread.php?t=2005756 for discussion and https://help.ubuntu.com/community/AsusZenbookPrime for a wiki about the issues and fixes.
memin1857 - Friday, June 15, 2012 - link
I got the UX31A today and it has the 256GB ADATA XM11 Sandforce SSD! the package has the Sandforce Driven by LSI sticker. Also on the aliminium case. The model is UX31A-R4003V Turkish model with i7 cpu, FHD IPS Panel and 256GB SSD. I do not know if sandisk versiona exist. It was a nice surprise, I was worries about Sandisk U100 but it turns out to be Adata Sandforce :)netmann - Sunday, June 17, 2012 - link
Congratulation memin1857!I am also thinking of getting the UX31A or UX21A, however these are not available in US just yet! I currently own the UX31E. Did you get a chance to open the back panel to check the SSD in your UX31A? I am interested to know if your 256 GB ADATA XM11 is still a gum-stick format or a standard mSATA format. I am thinking of swapping the XM11 in my UX31E with the possible U100 in the A series laptops.
ilkhan - Saturday, June 23, 2012 - link
Swap the mini-VGA for a thunderbolt connector, remove the micro-HDMI and power LED for a full sized HDMI port.Fit a Gbit port on there somewhere or at least a bottom connected docking station with power/video/GBit/Sound.
Add a haswell quad CPU and a time appropriate midrange nVid GPU.
I'll get one next year.
Zodryn - Wednesday, July 4, 2012 - link
I recently received my ux31a from Amazon, and noticed a few interesting things:1) There are only two options in the configurable tdp section. 1.7GHz and 1.0GHz at 13W. There is no 16 or 17W option. This bothers me, as I was hoping for better gaming performance than my old ux21e, but at 13W, it was virtually the same. I could really use that extra bump. Anyone know why this is the case?
2) Adata SSD! This laptop is lightning fast. I attribute a good chunk of its speed to Sandforce.
3) When I have the brightness set to max, it is sometimes quite dim. It randomly and gradually brightens at times until it is very bright and pleasant to look at even in direct sunlight. It seems to have issues staying at a consistent brightness.
As a final note, my old ux21e (sandforce) boots in 16 seconds consistently. The ux31a (also sandforce), boots in 26 seconds consistently. This confuses me greatly.
yatahaze - Friday, August 3, 2012 - link
I've had a UX31A for a little over a month now, and my drive has gone horribly corrupt simply after waking it from sleep. Many many many errors reported by disk utilities.veteran_n00b - Thursday, August 23, 2012 - link
This just happened to me this morning. Tried to wake from sleep but the system was unresponsive. Forced shutdown and then it would not boot. I was able to get it going again with boot repair. Then I ran chkdsk the system file checker and found that there were a lot of corrupted files!Oh yeah, this is my 2nd laptop which I am in the process of returning because the webcam stopped working. My first one stopped charging one day so I had to return that.
I really want to like this laptop but wow, such quality issues!
ijozic - Tuesday, August 21, 2012 - link
I guess the review needs some update regarding the Ivy Bridge CPUs and the battery life in the low power mode, etc.