Recently the 13-inch notebook segment has emerged as being one of the most competitive segments in notebook design and also the most diverse sets of products available. This size was already quite interesting when the major players were the Dell M1330, Sony SZ, and Apple’s MacBook, but the shot in the arm came with the Lenovo X300 and macbook air. The last two made it clear that 13-inch notebooks were not only capable thin-and-light systems, but could also be designed to be sub-3lb and compete with ultraportables.
Sony’s SZ is not a flyweight like the Air or X300, but rather is going for that powerful-yet-portable role. It takes a number of design cues from Sony’s incredibly cool, yet underpowered, TZ and Sony has no problems with making a computer this size into a beautiful executive-style notebook. In fact, the SZ we will be featuring in this review is a Premium model, which brings along a number of improvements over the standard version, but also a serious price tag ($2499.99 as tested).

The SZ (model VGN-SZ791N) as tested arrives with an Intel T9300 processor (2.5GHz), 4GB RAM, a 250GB 5400RPM disk, Intel GM965 Express chipset , and a DVD-RW drive. Graphics are handled by an Nvidia 8400M GS video solution and it uses a 13.3-inch 1280×800 LED backlit display. Communications options include ethernet/modem jacks, Bluetooth, Intel 4965AGN wireless, and Sprint mobile broadband. The system is 12.5″(W) x 1.0″-1.5″(H) x 9.3″(D) and weighs in at 4.0lbs.
The SZ, like other Sony notebooks, capitalizes on Sony’s brand name and high-end design in order to justify a considerable price increase over the competition. The Premium model throws in unnecessary but impressive features like a carbon fiber chassis in order to differentiate the model from the competition even more, but also gets a higher end processor and more RAM than the standard SZ. The end result is one of the most appealing notebooks in the size category, but for a lot more dough than other similarly spec’d models.

Looking at the SZ there is no doubt that Sony is still a leader in notebook design. The SZ is a bit on the bulky side (it gets well over an inch thick), but their use of building materials is top notch. The SZ does not have all the extras of the TZ, like the green LED on the end of the hinge or the separated (”MacBook-style”) keys, but it still looks great. The LCD cover is extremely thin and the way the keyboard is designed is quite slick. The build quality is very good, and while you can’t exactly tell that carbon fiber was used, even a quick look at this SZ will set it apart from something like the M1330 (which is pretty nice in its own right).
The goal of the 13.3-inch size is to balance size and usability. So despite the 4lb weight, the SZ has an optical drive, discrete graphics and a full assortment of I/O features. It has a 2.5-inch disk, optical drive, webcam, mobile broadband, PCMCIA expansion slot, and all the other things that consumers are looking for out of a cabable notebook. It’s not exactly a mobile workstation, but it’s power/weight ratio seems excellent (at least on paper). Sony gave the SZ a full set of features, including FireWire, VGA-out, a MemoryStick reader, port replicator, and two USB slots. If you want a card reader you have to plug in the included Memory Card adapter in the ExpressCard slot, which will give you xD, SD, and MMC support.
One thing that is worth noting right from the start is the SZ’s LCD. The 13.3-inch widescreen display is one of the best made today, and with the brightness cranked up it is impressive. The LED backlighting allows it to get quite bright as well as having better coloring than the typical notebook. This is even more impressive when you factor in that the Premium uses a thinner LCD cover than the standard SZ. The Premium is also said to have improved backlighting, so that could be a factor, but Sony is generally strong in the display department.

The 13.3-inch notebook allows for a full-sized keyboard and Sony did a very nice job here. At first the keyboard feels low profile (which seems unnecessary given its thickness of up to 1.5-inches), but despite limited travel it is comfortable to use, even for extended periods. Typing can be both fast and accurate despite the design which does not seem like it would be as enjoyable to use as it turned out to be. The cursor controls get the job done but aren’t anything exceptional–it’s just a trackpad with two buttons and a fingerprint reader between them. The buttons have a nice action and an accurate click so they are better than most in this regard.
Performance benchmarking for the SZ did not go as smoothly as expected. Despite using our standard suite of tests and Windows Vista, the OS had issues with a number of the applications. General operation did not have many hiccups at all (aside from a strange, occasional slowdown of the cursor controls) so this was probably caused by some of the system’s bloatware or some of Sony’s annoying bundled software. Past that the SZ offered up snappy performance in Vista and solid benchmark ratings. These include PCMark02 scores of 9053 (CPU), 28188 (Memory), and 1066 (HDD) and Super PI 1M/2M scores of 22.636 and 48.516. Graphics testing went very well thanks to the discrete graphics and the system pulled down a 13595 in 3DMark01, 4881 in 3DMark03, and 2090 in 3DMark05. So overall the SZ handled itself nicely. This is a max’d out version of the SZ, but the system definitely can be a capable performer.

According to Sony the expected battery life for the SZ Premium is between three and six hours. During testing we tended to eek out about three hours, sometimes a little bit more, but not much. This puts it on the low side for an ultraportable (if you are grouping it with smaller machines), but is disappointing any way you look at it. We tested with the standard battery, but an extended model is available for $249.99 if you plan on taking the SZ on any long flights.
During day-to-day use the strengths of the SZ shine through. For users who value portability but prefer usability the SZ hits the mark. The combination of the display and the keyboard make the SZ a pleasure to use and while the notebook is not very small, it is still more than easy enough to get from place to place. The size difference between the SZ and the typical 12-inch ultraportable is almost non-existent, unless you were considering something that is built specifically with portability in mind (for example, the Toshiba R500 versus the HP TX2000). Vista has all of its normal hits and misses but ran well on the system as did most graphically intense programs, thanks to the combination of the Nvidia 8400 graphics with a very solid Intel processor (T9300) and 4GB of RAM. It’s no gaming system, but the discrete graphics give you more power under the hood than you might expect from a system that is under 5 lbs.
In the end, the SZ exceeded my expectations. Based on the price, the intense competition in the 13.3-inch segment, and the lackluster performance from Sony’s brilliantly designed TZ, I did not expect the SZ to hold up as nicely as it did. Immediately it was clear that Sony designed the SZ well, with excellent material, like an aluminum palm rest and carbon fiber LCD cover. The system gets warm, and while some points on the bottom get very hot, the palm rests and keyboard stay cool even with the high-end processor. Performance was strong throughout testing, making the SZ a very good cross between size and weight. There are a lot of options in this size/performance class, but if you like high-end frills like carbon fiber and a brilliant display (and you have some extra money to spend) then the SZ is worth checking out.
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