Apple original SSD vs. OWC SSD
Man you got ripped off for that RAM and SSD.
I wouldn't call the Apple 512GB SSD a rip off. The upgrade from the low cost 5400 rpm model cost you 1100$. Sure that is still much less expensive than the OWC 480GB Mercury Extreme Pro SSD, which sells for 1580$.
http://eshop.macsales.com/shop/internal_storage/Mercury_Extreme_SSD_Sandforce/Solid_State_Pro
I have decided to go for a 512GB Apple SSD for my custom built 2011 MBP 15", 8GB RAM, Core i7 2.3GHz.
The OWC is probably a bit faster than Apple's stock 512GB MBP 2011 SSD, but I have not seen any benchmark comparisons on that.
I upgraded a month ago the 128GB stock SSD in my mid 2009 MacBook Air (rev C) with an OWC 240GB Aura Pro MBA SDD. I did that because i needed more storage space and I wanted it also to be faster as I also use Windows under Parallels VM.
http://eshop.macsales.com/shop/SSD/OWC/Aura_Pro_MBA
I must say that I am extremely happy with my upgraded SSD in my MBA. The OWC SSD is significantly better performing than the Stock Apple SSD. See Xbench results below:
Apple Stock SSD in MBA Late 2009:
Results 145.38
System Info
Xbench Version 1.3
System Version 10.6.6 (10J567)
Physical RAM 2048 MB
Model MacBookAir2,1
Drive Type APPLE SSD SM128
Disk Test 79.94
Sequential 63.37
Uncached Write 55.97 34.36 MB/sec [4K blocks]
Uncached Write 53.11 30.05 MB/sec [256K blocks]
Uncached Read 47.61 13.93 MB/sec [4K blocks]
Uncached Read 184.45 92.71 MB/sec [256K blocks]
Random 108.26
Uncached Write 52.16 5.52 MB/sec [4K blocks]
Uncached Write 66.55 21.31 MB/sec [256K blocks]
Uncached Read 1458.67 10.34 MB/sec [4K blocks]
Uncached Read 484.80 89.96 MB/sec [256K blocks]
OWC SSD 240GB Aura Pro MBA installed in January 2011:
Results 155.83
System Info
Xbench Version 1.3
System Version 10.6.6 (10J567)
Physical RAM 2048 MB
Model MacBookAir2,1
Drive Type OWC Mercury Extreme Pro SSD
Disk Test 198.22
Sequential 115.46
Uncached Write 173.05 106.25 MB/sec [4K blocks]
Uncached Write 147.87 83.67 MB/sec [256K blocks]
Uncached Read 52.58 15.39 MB/sec [4K blocks]
Uncached Read 324.32 163.00 MB/sec [256K blocks]
Random 699.94
Uncached Write 1021.88 108.18 MB/sec [4K blocks]
Uncached Write 331.21 106.03 MB/sec [256K blocks]
Uncached Read 1737.71 12.31 MB/sec [4K blocks]
Uncached Read 876.07 162.56 MB/sec [256K blocks]
Keep in mind that OWC is current state of the art technology compared to the 2009 Apple stock SSD. So I would not expect the same performance difference between Apple's current 2011 MBP SSD and the current OWC Mercury Pro.
I am looking forward to your benchmark results with SSD's in MBP 2011.