The MacBook Pro Review (13 & 15-inch): 2011 Brings Sandy Bridge
by Anand Lal Shimpi, Brian Klug & Vivek Gowri on March 10, 2011 4:17 PM EST- Posted in
- Laptops
- Mac
- Apple
- Intel
- MacBook Pro
- Sandy Bridge
Mostly No QuickSync
One of the most significant features of Intel's Sandy Bridge CPU is Quick Sync, the hardware assisted video transcode engine. In our review we found it to be better than any of the currently available GPU based transcoding methods and far better than just running the transcode operation on your CPU. While Quick Sync's performance/quality in the pro space is unproven, there's simply no better way of taking your existing video content and transcoding it for use on mobile devices like an iPhone or an iPad.
Given how well Quick Sync is suited for moving content between i-devices it's surprising that Apple doesn't tout it as a feature of the new 2011 MacBook Pros. Not only is Quick Sync not featured by Apple, it's not supported by any Apple application other than FaceTime.
That means iMovie and QuickTime rely on CPU based video encoding and not Quick Sync.
Apple has traditionally been very conservative with adopting new hardware features in software (ahem, TRIM). I'm worried that we may not see Quick Sync in iMovie until the 2012 version, however once the rest of the Mac lineup moves to Sandy Bridge maybe the incentive to introduce it sooner will be there.
Apple does claim support for Quick Sync in FaceTime however CPU utilization is still very high when using FaceTime HD:
Depending on available upstream bandwidth I saw between 50 and 100% CPU utilization of a single core while running FaceTime. According to Apple, FaceTime HD wasn't possible on a dual-core machine without the SNB video encoder. As to why we're seeing such high CPU utilization even with hardware accelerated encode and decode, your guess is as good as mine.
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iwod - Friday, March 11, 2011 - link
iPad is only just starting to sell and iPhone still has lots of space to grow. The trend is Apple are making more units and more money from ARM specific products.Nvidia has just recently stated that Project Denver will be ARM 64 bit. And aiming at HPC and Desktop. Full Compatible with current ARM instruction set.
Currently Apple must have a ARM version of Lion testing, and few years down the road, they could switch their Mac over to ARM 64 bit. Using a single Instructions Set for their whole product line.
For some reason i have been thinking that Apple and Intel aren't doing too well together like anand has felt. I dont think Thunderbolt is any indication of their current relationship. it is merely they have been working on it for such a long time, no one wants to lose our at the end.
Of coz it could have been the other way round x86 moving into iPhone, although that depends how much intel is willing to bend towards apple.
jbh129 - Friday, March 11, 2011 - link
Anand,Can you guys run your high-end 15 through the Windoze tests that were used on the 13?
Thanks
tajmahal42 - Friday, March 11, 2011 - link
Hello guys!First, I have to say this review is really awesome, as usual! Just what I was hoping for. The thoroughness and practical sense of your reviews continues to amaze me every single time.
For the 13" MBP, you mention "bouts of instability". Can you elaborate on that? Stuttering? Crashes? In what way do you notice that instability? I'm a little concerned now.
tno - Friday, March 11, 2011 - link
+1alent1234 - Friday, March 11, 2011 - link
my wife has been bugging me about our wifi since we moved and get a poor signal in a lot of the new apartment. told her i can get a new router with 3 antennas but we will also need a new laptop as well with the antennas to take advantage of it.which brings me to my question. i know the 15" model has the 3 antennas. does the 13" do MIMO as well?
tipoo - Friday, March 11, 2011 - link
They all use the new card.By the way, have you tried switching wifi channels, or installing DD-WRT and boosting signal? Even so, you don't need a new laptop after getting a new router if signal strength was the only problem.
alent1234 - Friday, March 11, 2011 - link
i'll try that, thxa lot of wifi around me these days. we only have work laptops now so that would be our only personal computer if we bought one. i was looking for the cheap SB models when they come out
name99 - Friday, March 11, 2011 - link
"told her i can get a new router with 3 antennas but we will also need a new laptop as well with the antennas to take advantage of it."This is not completely true. A base station with multiple antennas CAN do the equivalent of phase-array beam steering to direct most of the output power towards the target laptop. The laptop will thus see a stronger signal, and one of the better modulation schemes (eg 64-QAM 5/6) can be used rather than one of the weaker schemes. Thus your laptop, even if it has only one (or two) antennas can still see better performance.
Note, this is a theoretical possibility. I do not know the current state of the art in how well base stations utilize the various forms of transmit diversity that are available. And no review ever seems to talk about this stuff, either by testing how well the kit works with a single antenna device, or by talking to the manufacturer about what's in their product.
Brian Klug - Friday, March 11, 2011 - link
The 13" does have 3x3 MIMO as well, the exact same broadcom solution as the 15" I tested extensively.-Brian
7Enigma - Friday, March 11, 2011 - link
Anand and crew,I am very disappointed with the battery life numbers in this review. This is the first review of a laptop where it appears you have used a 3rd party app (Cody Krieger's gfxCardStatus tool) to significantly inflate the numbers of the new 2011 systems. 35-60% by your own numbers back on the discrete GPU battery life page, which you then fail to report in the battery life tables later on!
When you are tasked to review a system (especially an Apple product I might add) it should be reviewed as is, with no tweaking or 3rd party add-ons to boost performance/benchmarks. When have you EVER installed an add-on for a Windows-based laptop to improve performance/life? I can't think of one.
At best this was a simple oversight where you have benchmark numbers WITHOUT the gfxcardstatus, at worst this was a cover-up job which I have always argued in the forums against and on your site's behalf.
Please update the tables to show what a stock newly-purchased laptop at the Mac Store would deliver.
I am very disappointed in this coverage.