We also tested a 21.5-inch entry-level iMac, with Intel's Core i5 quadcore 2.7GHz, 8GB of RAM, and the standard 1TB 5,400rpm hard-drive. The difference is particularly clear when compared to a 2012 iMac without FusionDrive.
#SOLID STATE DRIVE FOR IMAC 2012 PRO#
The 13-inch MacBook Pro with Retina display, for instance, came in at 431.7 MB/s read and 382.7 MB/s write with its 500GB solid-state drive. Given the flash storage is prioritized until capacity becomes an issue, it comes as little surprise to see those rates up around where recent all-flash models from Apple have performed. In the Blackmagic test of disk performance, the iMac managed read speeds of 409.6 MB/s and write speeds of 318.7 MB/s using the flash/HDD hybrid. Again, in contrast, the 15-inch Retina MacBook Pro scored 34.40fps and 5.74 points in those categories respectively, with its 2.6GHz quadcore Core i7 and 8GB of memory.įusionDrive certainly doesn't hurt.
Cinebench, a test of processor and graphics performance, saw the new iMac score 42.72fps in the OpenGL category, and 7.32 points in the CPU category. In the SunSpider test of browser performance, the new iMac completed in 133.3ms (faster is better) the 15-inch Retina MacBook Pro scored 179.5ms in the same test. There's a sizable reduction in weight, too, versus the old design – the 21.5-inch iMac is down 8 pounds to 12.5 pounds, while the 27-inch version is down 9.5 pounds to 21 pounds – which is useful if you're moving the computer around. Traditional welding the seams wasn't possible, thanks to the slimline build, and so a technique where the panels are pressed tightly together, heated, and fused was implemented.
#SOLID STATE DRIVE FOR IMAC 2012 UPGRADE#
You also get minimal upgrade potential: the 21.5-inch iMac is an entirely closed box, with nothing intended to be user-accessible, while the 27-inch iMac has a small panel by the power socket that allows access to the memory but nothing else.Īpple's production magic is friction-stir weldingĪpple's production magic is friction-stir welding, more commonly used in the aerospace industry, and repurposed for the new iMac to bond the front and rear panels together. So, you get carefully stacked logic boards and custom speaker enclosures, along with a single central fan that pulls cool air from a row of holes under the front edge, and pushes it back out of vents behind the tilting stand. That accommodation and construction uses everything Apple has learned so far from unibody notebooks, scaled up to suit a 21.5-inch or bigger desktop.
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