I bought my iMac with 8GB of RAM, because Apple is currently charging $600 for the 32GB upgrade-and that's all you get, 32GB. Power draw is up, too, but only by seven watts, which is impressive given the increased performance of the CPU. (Intel's definition)įive years worth of progress in the CPU is quite evident in the table-double the cores and threads and cache, and much faster RAM speed. Thermal Design Power 1 Thermal Design Power (TDP) represents the average power, in watts, the processor dissipates when operating at Base Frequency with all cores active under an Intel-defined, high-complexity workload. Here are the specs on my two iMacs-the Late 2014 Core i7 and the new 2019 Core i9:
Once past the richer colors, the 2019 iMac acts just like my 2014 iMac, except it does pretty much everything faster-much faster in some cases. (I was obviously fine with the colors on my old iMac for the last five years, so it's not like they're awful…but when used side-by-side with the new machine, the images do look a bit flat.) I don't know if this is due to the wider color gamut support, or something else, but I do prefer the richer look on the new iMac. Here (again, via iPhone photos) are the images with those profiles active:Īs you can see, they're much closer, but the new iMac is still richer (more saturated). At his suggestion, I switched the color profile on both to Adobe RGB (1998), a very well-established standard. (I had to grab the frame from an animating scene, which is why they're not identical shapes.)Īs screenshots probably wouldn't reveal these differences, I used the iPhone to take photos, then fixed any skewing and cropped them (but didn't adjust color, brightness, etc.) in Acorn.īoth iMacs were set to the default color profile (iMac), and had identical brightness settings.Īt first, I thought this might be due to the wide color gamut (P3) support on the new iMac, but a friend said it shouldn't be that dramatic.
For example, here's a screen from the GpuTest app. I haven't yet installed/tested these, though I'm hopeful they'll work.Īfter logging into both machines, though, it's apparent that something's different with the new iMac's screen. For me, this means I need a couple of adapters-my RAID is Thunderbolt 2, and I connect a second HDMI display via the other Thunderbolt port. From the back, of course, things are a bit different, as Thunderbolt 2 has made way for USB-C/Thunderbolt 3. Externally (at least from the front) I can't tell the two iMacs apart-if there have been any user-facing changes in the last five years, they're not visible to my eye.
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