![]() ![]() We also looked for light leakage on the iMac display, and in our testing, it was more noticeable on our 27-inch 2.8GHz Core i5-though it was only noticeable with a solid black desktop and not enough to affect everyday use for general users. We weren’t able to notice a tint or color shift with the week-old iMacs in our lab, nor did we notice anything wrong when we tested our older 27-inch 2.66GHz Core i5 iMac from late 2009. To see if the new iMacs had similar problems, we used a Some customers who bought a late 2009 iMacĬomplained of yellow-tinted displays. The viewing angle seems to be the same as the previous iMacs, which is good there’s no noticeable color shift when looking at an angle. The 21.5-inch display has a 1920-by-1080 native resolution, while the 27-inch display has a native resolution of 2560-by-1440. In-plane switching and are capable of displaying millions of colors. The two new 3.2GHz iMacs have 512MB Radeon HD 5670 graphics, while the 2.8GHz Core i5 iMac uses a 1GB Radeon HD 5750.Īs for the displays, they’re the same 16:9 displays as those used in the previous iMac generation: LED-backlit TFT active-matrix LCDs that support The 3.06GHz Core i3 iMac has a 256MB Radeon HD 4670, which was used in the now-discontinued $1499 3.06GHz Intel Core 2 Duo iMac. All of the new models use ATI discrete graphics, which have dedicated video RAM. Integrated graphics processors that use a portion of main memory for video memory are no longer featured in any of the iMacs. The quad-core 2.8GHz Core i5 in the $1999 iMac doesn’t support Hyper Threading, but it does support Turbo Boost.īesides the processors, the graphics cards are the other major change with the new iMacs. The 3.06GHz Core i3 processor in the $1199 iMac and the 3.2GHz Core i3 CPU in the $1499 and $1699 iMacs support Hyper Threading, which allows the processor to use virtual cores to better handle heavy workloads, but they don’t support Turbo Boost, where the processor shuts down unused cores and boosts the speed of the active core. The differences between the iMac processors go beyond the number of cores and clock speed, however-and it can be confusing. The fourth iMac, a $1999 27-inch model, sports a 2.8GHz Core i5 quad-core processor with 8MB of level 3 cache. The $1199 21.5-inch iMac has a 3.06GHz Core i3, while the $1499 21.5-inch iMac and the $1699 27-inch iMac both feature 3.2GHz Core i3 processors. Apple now uses dual-core Intel Core i3 processors with 4MB of Level 3 cache in three of the new iMacs. The Intel Core 2 Duo processors found in the lower-end iMacs of the previous generation are gone.
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