I am using a 2013 MacBook Air and considering to upgrade from 10.9 to 10.10. Is there a performance gain after the upgrade? Is Yosemite faster than Mavericks, say, regarding UI responsiveness?
Quick answer: NO. Yosemite isn't faster than Mavericks.
I don't say that the performance is worse. The oldest is the computer most noticeable is the difference. But, on a 2013 computer, it should be the same, or nearly the same, on both machines. Anyway, there are things you can do to improve it (How to Improve OS X Yosemite Performance).
What I noticed, is that is quite more efficiently on batteries.
From a purely anecdotal experience, I haven't noticed much of a difference between Mavericks and Yosemite on my 2011 Macbook Air (i5). The only exception may be the animation for expanding stacks and fans being slightly less smooth, but this may just be me being hypersensitive to finding performance differences.
If you find that your Mac is significantly slower or less responsive after the update you may want to backup and do a clean install. I've had good results of doing an upgrade-installs with my Macs in general, but sometimes they can result in a more sluggish system compared to a clean install.
I do have lots and lots of UI responsiveness problems with Yosemite that I don’t have with Mavericks.
I have a 16GB Mid-2012 rMBP (first Retina MBP) and boy! is Yosemite sluggish! Fun fact: Mavericks used to being as sluggish when it first came out… Apple did enhance it.
I do have a lot of Spaces opened all the time (around 6, not counting fullscreen apps), but with (almost) the same apps opened on Mavericks and Yosemite, Yosemite is way slower. And it gets slower and slower as the uptime grows.
My advice: wait for OS X 10.10.3 or such (at least 10.10.2). Let Apple optimise its OS.
I used to have Mavericks installed on my machine (a 2012 macmini with 2.5ghz i5, 16GB RAM), then I upgraded to Yosemite. I didn't notice any significant difference in performance in terms of UI responsiveness.
But it seems to me quite clear that Yosemite is using more RAM to cache a lot of stuff. The boot up process seems to also take quite long on Yosemite. Safari is noticeably faster on Yosemite than it was on previous systems.
My fastest system in terms of responsiveness is a Mountain Lion installed on a separate partition with swapping disabled. Unfortunately I didn't find a way to disable swapping on Yosemite too, so I can get a better use for the 16GB of RAM.
In many ways Yosemite feels like a better system, though, and I wouldn't go back to any previous system, even though there is no significant improvement in terms of functionality (it's mostly UI changes).
I would like to add, as a concerned guy with performance, that since Mavericks my MacBook Air 2013's boot time has increased a lot! I measured the boot time 3 times with a stopwatch and calculated the average, so here are the results:
- Mountain Lion: 11.0 seconds
- Mavericks: 18.0 seconds
- Yosemite: 22.0 seconds
I don't like the idea that every time Apple releases a new OS X, the boot time increases. One of the reasons I chose Mac was because it was fast! I was able to push the power button and get to work in 10 seconds, now I'm not. I'm not very fond of Linux, but my Ubuntu boots in 15 seconds and it's the latest version of Ubuntu. If I need to do something as quickly as possible, which one do you think I would turn on? Yosemite or Ubuntu? = /
I miss Mountain Lion, it's the best OS X in my opinion. I just hope Macs don't take 1 minute to load like Windows in the next OS.
I have a macbook air mid 2013 and Yosemite is 100% my favourite OS X so far. It is worth trying it out only because of giant jump in performance of safari. I also recently installed Yosemite on macbook late 2008 with hdd and 2gb ram, after upgrading to 4gb ram I could fully enjoy the fresh OS X even on the old machine. However I did notice that turning on time takes a little longer than using mavericks. I would strongly suggest switching to Yosemite as most of the time we spend with the browser, unless your job requires otherwise. Definitely worth giving a try.
So, I am running a Macbook pro late 2011 with upgrade to a Samsung SSD ,instead of the normal HDD.
That being said, I can tell you that after changing form Mavericks to Yosemite, I'v been really happy with the way it runs!
I will make a list of pro's and con's so it will be easy for you to read.
PRO's: 1. Safari is insanely cool! 2. Notification center is now similar to the iOS's notification center and I find it really useful! 3. The design is smooth and nice to look at.A bit better than Maverick's design. 4. Slightly bigger battery life -still a big plus.At least 30 minutes more battery life. 5. Overal cooler user-experience.
CON's 1. The laptop boots a bit faster than it did before -I get like 4 seconds boot time up to the password stage, but after I write my password, it takes about 10 seconds to load the UI completely. 2. Had slight problem with the Mail app
Been using Yosemite a few days and overall experience was awesome!
When I compare Yosemite with Mavericks, The system is very slower with Yosemite The translucent graphics require much more CPU power and system working very slower. It will be better to select "Reduce Translucency" option from System Preferences -> Accessibility to increase the system performance Plus there are many bugs exist in the program. The geographical location system and related systems are always crushing and system is stalling If you run the Activity Monitor... You will realize that, OS X Yosemite is full of Bugs Finally, It's for these reasons that I decided to return back to my old Mavericks...
As of my own experience, Yosemite doesn't seem that much slower than Mavericks on executing operations (I have a MacBook Pro mid-2010).
What is way slower though is UI responsiveness especially for Finder's windows. My main gripe is with Window Resizing, which respond as fast as a slideshow. In 10.10.0, Icon view and List view were acceptable. Column view was unbearable. Since 10.10.2, I noticed all three views are suffering from the same problem.
One way to fix this is indeed to Reduce Transparency (System Preferences / Accessibility / Display) but also to Always Show scroll bars (System Preferences / General).
What is funny though is that I booted Parallels Desktop with Windows 7 while still using Yosemite and Windows 7 was more responsive even running as a Virtual Machine. That shows that there is a real problem on the software side from Apple.
All and all, Yosemite is a great update, feature-wise. I would advice to stay away from it for now if you can't stand those issues.
I've been running Yosemite since it came out, with the updates and I'm finding that its boot time is unacceptable. I'm seeing 30+ seconds of totally blank screen and then longer with the logo and the progress bar - I'd guess the startup time before I can log in is between 1.5 and 2 minutes.
So - yes, startup is now firmly in the old Windows territory and is completely pathetic when compared to my Samsung XE, Surface Pro 3 and a bog-standard dual core Pentium machine - all of which run Win8/8.1 and all boot to a login within 20 seconds!
I'm seriously considering backing up all my data off the iMac (2012) - and going back to an earlier version - maybe Mountain Lion - until Apple gets their act together!