Sony Vaio Z2: Everything is Peripheral
by Dustin Sklavos on February 13, 2012 12:55 AM ESTConclusion: So Close, Yet So Far
The Sony VAIO Z2 is a series of fantastic ideas undone by a few bad ones. On paper and with the price tag out of the equation, there are very few ultraportables on the market more compelling than what Sony hopes to offer the end consumer. A beautiful carbon fiber chassis, stellar quality 1080p screen, powerful Intel Core i7 dual-core processor, excellent battery life with or without the sheet battery, and an external dock that both expands the connectivity and utility of the notebook but also adds dedicated graphics for gaming performance. Who wouldn't be excited about this?
With so many things going for it, it's a shame that Sony missed the boat on the actual user experience. While having a good screen is a major part of the user experience and Sony does indeed win that battle in a landslide victory, the rest of it is a wash. Fan noise isn't just irritating, it's actually potentially painful. The keyboard ranks among the worst I've ever tested, actually provoking more ire than Acer's floating island keyboard. The touchpad was clearly designed with aesthetics first and functionality a distant second. The hinge design is bafflingly ill-conceived, and while the Z2 is certainly light it also lacks something in sturdiness.
That's before you even get into all the bloatware Sony has a tendency to pack on to their notebooks; at this point they're actually the biggest offender. Notebooks I've reviewed from other vendors are seldom as bogged down as the Sony systems I've seen have been (though granted, the SSDs in the Z2 help in this regard), and most of that bloat is just other Sony applications. All this, and the external dock's dedicated graphics are both crippled by lower PCIe bandwidth and at the mercy of Sony to keep drivers updated.
What Sony has here is the potential for a great notebook that seems to have been almost completely undone by one poor decision after another. If you can live with the rash of compromises you'll have to make, there's an awful lot to like about the VAIO Z2, but the concepts Sony is putting forth here are in desparate need of a revised design. All we can do is hope Sony takes the best ideas of the Z2 and rolls them into a Z3 that doesn't have the same glaring weaknesses.
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Malih - Monday, February 13, 2012 - link
I'm curious how low would the temperature be, and how much longer the battery life is if it uses an i5 (or maybe i3?).Primarily cause I don't expect too much CPU power with an ultrabook, and the cooler it runs, the less noisier it is, the better, just as long as I can browse the internet, watch HD movie, run a development web server and code comfortably, preferably on 8-hour or so battery life.
Perhaps if AnandTech could test/request some of the i3 or i5 Ultrabooks from manufacturers instead of maximum performance hardware in the future.
mczak - Monday, February 13, 2012 - link
core i5 instead of core i7 doesn't really buy you anything - in fact it should be slightly slower for the same power usage.I think though if the fan really has trouble cooling that 35W chip Sony should have opted for a i7 25W instead. If you compare the i7 2620M (35W) with the i7 2649M (25W, same price) you'll notice you don't really give up that much (in contrast to the 17W options which definitely sacrifice peak performance quite a bit).
The i7 2649M has 2.3Ghz clock with 3.2Ghz turbo, while the i7 2620M has 2.7Ghz clock with 3.4Ghz turbo. That's just 15% deficit for base clock and 6% for turbo. The IGP is also clocked lower but since you've got a dock with discrete graphics it probably isn't that important.
(In contrast the fastest 17W i7, the i7-2677M, has just 1.8Ghz base clock, with 2.9Ghz turbo, a bigger loss percentage wise against the 25W i7.)
JarredWalton - Monday, February 13, 2012 - link
While the i3, i5, and i7 are all rated at 35W TDP, that's not what they'll actually draw on a consistent basis. My experience in the past has been that, depending on the voltage of a specific CPU (which varies slightly even for the same clock speed), you will find i7 frequently uses a bit more power (offers slightly lower battery life) than i5. It's usually not enough of a difference to worry about, though -- like less than 5%. My feeling is that 35W is just pushing the limits of the cooling solution a bit too hard; either they need a slightly thicker laptop (thicker = more airflow), or they need a lower TDP CPU.mczak - Tuesday, February 14, 2012 - link
I'd love to see a test comparing different i7 chips (with several identical ones to account for variation) to different i5 chips (again with several identical ones).There used to be a time where faster chips had a published TDP which was larger than slower ones (they often also had higher voltage). Then at some point someone must have realized this doesn't look good, and all chips had the same TDP (or rather same TDP class) even though it was plainly obvious the power draw of the faster chips was still higher (they continued to have higher frequency, the same or higher voltage, and leakage wasn't much of a factor).
Nowadays, with multiple VIDs and leakage being an important factor, this isn't that obvious. but it would not be surprising if it's still somewhat true.
I agree though it would not be enough of a difference in any case to make a significant difference for cooling (hence the 25W suggestion, though this implies core i7 as there are no current mobile i3/i5 25W chips).
Malih - Monday, February 13, 2012 - link
Thanks, I wasn't aware they have the same TDP. I wouldn't mind the 17W i7 if the temp is lower, guess I'll be looking for laptop with this CPU.I assumed since it is a quad core the i7 probably would produce more heat, compared to dual core i5 (or i3).
Malih - Monday, February 13, 2012 - link
Oh, I just noticed on the specs sheet that the i7 2620M is a dual core.vavutsikarios - Monday, February 13, 2012 - link
could you please provide the dimensions and weight in metric system please?axelthor - Monday, February 13, 2012 - link
Yes please!mtoma - Monday, February 13, 2012 - link
Amen to the metric system! AnandTech aims to be an international site, yes? Progress, progress, progress, much like we demand to the notebook manufacturers.ratte - Monday, February 13, 2012 - link
Agree, really annoying to have to translate everytime