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Can anyone answer (or guess) the following: Will Mid 2007 iMac really perform alright with El Cap? I've got a 27" iMac from '07, with 4GB RAM. I upgraded to Yosemite but it was too slow...downgraded to Snow Leopard because it was streamlined and fast. What do you think...will my system really run okay with El Cap, or should I just stick with Snow Leopard?

The first 27" iMac was in 2009. Perhaps you mean the 24" iMac from 2007 which will max out at 6GB of memory. You should consider upgrading no matter which OS you are running.
 
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Sadly though the iMac is the desktop that most people buy and it having a spinning hard drive really does affect performance. The 21.5 inch iMac has a 5400rpm Hard drive, and it REALLY slows down the machine. I cannot believe they are still selling this as a default option.
Not coincidentally, when Apple moved the 21.5" iMac from 3.5" 7200 rpm drives to 2.5" 5400 rpm drives (late 2012), they introduced the Fusion drive. In essence the 2.5" drive model is there to get people into the store via its price and then be upsold to a Fusion drive, ie, the Fusion drive model is one Apple wants to sell.
 
Can anyone answer (or guess) the following: Will Mid 2007 iMac really perform alright with El Cap? I've got a 27" iMac from '07, with 4GB RAM. I upgraded to Yosemite but it was too slow...downgraded to Snow Leopard because it was streamlined and fast. What do you think...will my system really run okay with El Cap, or should I just stick with Snow Leopard?

You should really get of Snow Leopard! I know it runs like a dream but there are so many serious security holes that it simply is not worth the benefit. If you mac can take it, put in a little more RAM, although that said, 4GB is really (usually) enough - you'll notice a really big jump in performance if you upgrade the HDD to an SSD, try going for one of the lower end Samsung ones which you can put in a 2.5" to 3.5" adapter (means you can reuse it if you replace your iMac). Depending what you're actually doing with your mac, Yosemite runs pretty good with 4GB, the main bottleneck in performance is probably the HDD - you'll be surprised at how snappy Safari is if you make the upgrade! :rolleyes:
 
Downloaded it and installed it as a VMware Fusion drive. Very slow, but then I've only given it 2GB of RAM and two processors. Nothing exciting jumps out at me so far. Just looks like Yosemite, which I don't like. Much prefer the skeudomorphisms of old.
 
Downloaded it and installed it as a VMware Fusion drive. Very slow, but then I've only given it 2GB of RAM and two processors. Nothing exciting jumps out at me so far. Just looks like Yosemite, which I don't like. Much prefer the skeudomorphisms of old.
Out of curiosity, does VMware Fusion work properly with Metal? It might be doing software rendering :confused: My computer literally feels like new o_O
 
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Thankfully Apple's insistence to still sell computers with spinning HDDs, and release 'updated' computers with worse specs, has forced their hand to improve software performance. If you work around the limitations of the hardware, it's likely you'll bring out the best from the software.

Anyway, good job Apple. You did the right thing on focusing on performance rather than new features.

Now if they can do this every release, while adding new features, would be awesome!
 
If it makes you feel any better, they forgot to replace the Yosemite graphic. In the 'About Mac' window it says "OS X Yosemite 10.11"
This does make me feel better.
Think again.
10.11 About.png
 
The first 27" iMac was in 2009. Perhaps you mean the 24" iMac from 2007 which will max out at 6GB of memory. You should consider upgrading no matter which OS you are running.
Oh, yes, I did mean the 24". It's my wife's now. I'm on a 2014 27" I don't yet have the cash to get her another computer, though perhaps this fall when new HW comes out.
 
You should really get off Snow Leopard! I know it runs like a dream but there are so many serious security holes that it simply is not worth the benefit. If you mac can take it, put in a little more RAM, although that said, 4GB is really (usually) enough - you'll notice a really big jump in performance if you upgrade the HDD to an SSD, try going for one of the lower end Samsung ones which you can put in a 2.5" to 3.5" adapter (means you can reuse it if you replace your iMac). Depending what you're actually doing with your mac, Yosemite runs pretty good with 4GB, the main bottleneck in performance is probably the HDD - you'll be surprised at how snappy Safari is if you make the upgrade! :rolleyes:
Thanks for the advice!
 
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