Apple MacBook Memory Testing of 512MB, 768MB,1.0GB, 1.25GB, 1.5GB, and 2.0GB configurations by Other World Computing. at OtherWorldComputing.com

MacBook MacBook Pro 2008 UnibodyUpgrading Memory
in your MacBook / MacBook Pro

MacBook and MacBook Pro 6GB & 8GB Testing



Until recently, MacBook and MacBook Pros have all been limited to a maximum of 4GB of memory. With the new 4GB modules now available at OWC, for the first time it's possible to have 6GB or even 8GB of memory installed in your 'mobile workstation'. Just because you can do something, it's important to answer whether the doing is worth the while.

In real-world use, the benefits are most definitely noticed and appreciated. It's a little harder to show the 4GB to 6GB to 8GB benefits with some benchmarks, but it's actually pretty easy to show how much that memory makes a difference working with a larger Photoshop file. With that being said, it's potentially of a better benefit and certainly cost savings to max out a current MacBook or MacBook Pro vs. buying a new one just for the faster processor - more memory can make more difference than more raw processor speed.


Apple MacBook / MacBook Pro Memory Testing of 2.0GB, 4.0GB, 6.0GB, and 8.0GB configurations by Other World Computing.

Photoshop CS3 Large-Scale Action Results

Adobe Photoshop CS3 is a common, Intel-native iteration of the popular image editing program.

This test measures the time (in seconds) it takes to execute a custom action script comprising 47 commonly-used, memory-intensive processes on a 21 megapixel image, using Adobe Photoshop CS3. Lower times are better.

RAM Configuration 2048 MB
(2x 1024)
4096 MB
(2x 2048)
6144 MB
(4096 + 2048)

8192 MB
(2x 4096

MacBook Pro 17"
MacBook Pro 17" (Mid 2009 - "Unibody" with ExpressCard/34 slot)
3.06 GHz Core 2 Duo
Not Tested 237.94 234.37 229.22
MacBook Pro 17" (Mid 2009 - "Unibody" with ExpressCard/34 slot)
2.8 GHz Core 2 Duo
Not Tested 280.53 272.12 267.94
MacBook Pro 17" (Early 2009 - "Unibody")
2.93 GHz Core 2 Duo (6MB L2 Cache)
Not Tested 264.15 246.48 234.48
MacBook Pro 17" (Early 2009 - "Unibody")
2.66 GHz Core 2 Duo (6MB L2 Cache)
Not Tested 300.48 247.95 235.94
MacBook Pro 15"
MacBook Pro 15" (Mid 2009 - "Unibody" with SD card slot)
2.53 GHz Core 2 Duo
Not Tested 308.31 279.84 277.29
MacBook Pro 15" (Mid 2009 - "Unibody" with SD card slot)
2.66 GHz Core 2 Duo
Not Tested 292.56 272.21 269.91
MacBook Pro 15" (Mid 2009 - "Unibody" with SD card slot)
2.8 GHz Core 2 Duo
Not Tested 278.04 269.65 258.75
MacBook Pro 15" (Mid 2009 - "Unibody" with SD card slot)
3.06 GHz Core 2 Duo
Not Tested 232.44 234.41 228.16
MacBook Pro 15" (Early 2009 - "Unibody")
2.93 GHz Core 2 Duo (6MB L2 Cache)
Not Tested 263.35 245.26 234.94
MacBook Pro 15" (Early 2009 - "Unibody")
2.66 GHz Core 2 Duo (6MB L2 Cache)
Not Tested 301.00 284.12 274.53
MacBook Pro 15" (Late 2008 - "Unibody")
2.8 GHz Core 2 Duo (6MB L2 Cache)
321.66 302.75 258.93 Not Compatible
MacBook Pro 15" (Late 2008 - "Unibody")
2.53 GHz Core 2 Duo (6MB L2 Cache)
360.19 340.29 299.47 Not Compatible
MacBook Pro 15" (Late 2008 - "Unibody")
2.4 GHz Core 2 Duo (3MB L2 Cache)
371.12 354.25 314.88 Not Compatible

MacBook Pro 15" (Early 2008)
2.4 GHz Core 2 Duo (3MB L2 Cache)

377.25 360.37 326.94 Not Compatible
MacBook Pro 15" (Mid/Late 2007)
2.4 GHz Core 2 Duo (4MB L2 Cache)
382.44 360.47 327.56 Not Compatible
MacBook Pro 13"
MacBook Pro 13" (Mid 2009 - "Unibody" with SD card slot)
2.53 GHz Core 2 Duo
Not Tested 308.88 297.71 288.47
MacBook Pro 13" (Mid 2009 - "Unibody" with SD card slot)
2.26 GHz Core 2 Duo
416.96 344.91 324.03 304.84
MacBook 13"
MacBook 13" (Mid 2009 - White)
2.13 GHz Core 2 Duo
383.51 358.28 342.5

Not Compatible

MacBook (Late 2008 - "Unibody")
2.4 GHz Core 2 Duo (3MB L2 Cache)
371.69 350.53 324.08 Not Compatible
MacBook (Late 2008 - "Unibody")
2.0 GHz Core 2 Duo (3MB L2 Cache)
394.16 377.62 344.72 Not Compatible
MacBook 13" (Late 2008 - White)
2.0 GHz Core 2 Duo (3MB L2 Cache)
501.72 381.31 347.41 Not Compatible
MacBook (Early 2008)
2.4 GHz Core 2 Duo (3MB L2 Cache)
373.26 354.56 312.90 Not Compatible
MacBook (Early 2008)
2.1 GHz Core 2 Duo (3MB L2 Cache)
405.31 383.34 343.60 Not Compatible
MacBook (Late 2007)
2.2 GHz Core 2 Duo (4MB L2 Cache)
387.85 371.71 325.67 Not Compatible
MacBook (Late 2007)
2.0 GHz Core 2 Duo (4MB L2 Cache)
424.22 403.75 361.53 Not Compatible