updated 04:32 pm EST, Tue November 27, 2012
Fusion Drive said to come with $250 pricetag
A third-party reseller, Expercom, has published what it says are the extra build-to-order costs for the 2012 iMac, which starts shipping on Friday. The base 21.5-inch system has just a single, $200 option for upgrading from 8 to 16GB of RAM. Moving to the high end, though, also allows a $200 boost to a 3.1GHz Core i7 processor, and a $250 upgrade to a Fusion Drive, Apple's hybrid SSD/HDD format.
The base 27-inch iMac has several RAM options, with costs as high as $600 for the jump to 32GB of RAM. The stock 1TB hard drive can be switched out for a 3TB unit for $150, and both HDDs are eligible for a Fusion Drive upgrade. 768GB of all-flash storage is priced at $1,300.
At the peak of the iMac line, the high-end 27-inch can be given a 3.4GHz Core i7 chip for $200, and the video card swapped out for a GeForce GTX 680MX at a $150 premium.
The BTO pricelist can only be confirmed on Friday. Even then, though, 27-inch iMacs won't ship until sometime in December.