2.53GHz i5 MacBook Pro vs. Base Model 21.5' iMac i3

rufus247

macrumors member
Original poster
Jan 26, 2009
47
0
Putting price and value aside, which computer is more powerful/faster, the 2.53GHz 15" MacBook Pro i5, or the newly updated entry level iMac with 3.06GHz i3? Thanks for your help.
 

Hellhammer

Moderator emeritus
Dec 10, 2008
22,164
581
Finland
iMac is. Its CPU runs at 3.06GHz all the time while MBP's runs at 2.53GHz (~21% difference). However, the MBP's CPU supports Turbo and thus the CPU will overclock itself to up to 3.06GHz when only one core is needed. Conclusion: About as fast in single threaded performance but iMac is about 20% faster in multithreaded performance
 

rufus247

macrumors member
Original poster
Jan 26, 2009
47
0
I'm trying to see if it is worth selling my MacBook Pro to get it. I think I would go with the 3.20GHz iMac, not the entry level one. I'm really kicking myself about buying the MacBook Pro. I use it as if it were a desktop, as it rarely leaves my desk. I am leaning heavily towards selling it, but I don't want to lose too much money in the matter. I get the student discount, which makes the computer $1399. Also, Tennessee's tax free weekend is in a couple of weeks, so that will help too. What do you think my chances are of getting $2000 for my MacBook Pro (the details are listed in my signature and with sales tax, it would cost $2350.88 new)?
 

anon.ymous

macrumors member
Jul 15, 2010
37
0
the 2.53Ghz i5's also have HT, so the macbook should be faster if the apps you're running are threaded.

None of the i3's have HT.

Also, that particular has vt-x and vt-d and will definitely be faster if you're planning on running virtual machines.

http://ark.intel.com/Product.aspx?id=43544
False on the hyperthreading. All of the i3s on the new iMacs have hyperthreading. The 3.06 does not have turboboost, however. All the other processor options do.

The i5 2.8 quad core on the 27-inch doesn't have hyperthreading - the only one of the bunch.
 

pukifloyd

macrumors 6502a
Jun 25, 2008
988
86
Scottsdale
iMac is. Its CPU runs at 3.06GHz all the time while MBP's runs at 2.53GHz (~21% difference). However, the MBP's CPU supports Turbo and thus the CPU will overclock itself to up to 3.06GHz when only one core is needed. Conclusion: About as fast in single threaded performance but iMac is about 20% faster in multithreaded performance
That was very helpful...thanks :)
 
Register on MacRumors! This sidebar will go away, and you'll see fewer ads.