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MacBook Pro Core i7: Combined 8GB/4GB with SSD and HDD
Related: Macs, SSD, optimization, MacBook Pro, Optimizing, MacBook Pro and MacBook
We’ve now seen that 8GB memory is hugely helpful, but also that using a fast solid state drive is also very helpful. What about both 8GB and a solid state drive or two of them?
The solid state drive (SSD) configurations discussed here are MPG Pro Laptop configurations.
SATA and Firewire 800 interaction
NOTE: these results are without a Firewire 800 device attached. See the bizarre interaction between internal SATA and Firewire 800.
The diglloydSmall benchmark uses about 8GB of scratch space in Photoshop CS5. It slightly exceeds the available (usable) memory on an 8GB system by about 2GB.
Using 8GB pays off big-time, but an SSD also pays off. However in the real world, Photoshop can’t generally have the system to itself as was done for this test, and so—
See further below for the diglloydMedium results, which are a good proxy for the real world when other applications are competing for memory.
The diglloydMedium benchmark uses about 16GB of scratch space in Photoshop CS5.
For really big jobs like this, even a single SSD looks slow compared to the dual SSD setup, taking 50% longer to complete.
Bottom line: dual SSDs as a RAID-0 stripe along with 8GB memory gets the job done in a fraction of the time of any other combination.
Just the 8GB configurations
But who wants to mess with a lousy 4GB memory? Here are the 8GB configurations to consider.
It’s simple: 8GB memory and one OWC Mercury Extreme SSD, or dual SSDs for really demanding tasks.
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