I do love the MacBook 12-inch model. It's a true beauty to behold, and the keyboard don't really bother me at all. The fact that it only features a single USB-C connection has not really been a problem either. The weight and footprint of the machine is just ridiculous.
But I can't free myself of finding the hardware to be slightly underpowered. My girlfriend loves it for studying and will be taking it with her for work when her studies are finished this summer. But she finds the performance to be a tad bit too low while editing Word files with tons of pictures and operating several applications at once.
The big question is; Does the move from Intel Core M (Broadwell) to Intel Core m5 (cheapest option) / Intel Core m7 (upgraded / expensive model) (Skylake) offer any significant boost to the performance.
Comparing the raw specs of the Intel Core M (Broadwell) to the new Intel Core m5 / m7 (Skylake) they seem to be almost identical in terms of CPU, and a slight increase in terms of GPU and higher memory speeds which again affects the integrated GPU and not really CPU performance.
According to Notebookcheck the GPU performance of the Intel HD 5300 on Intel Core M compared to the new Intel HD 515 on the Intel Core m5 seems to provide about 5-20% increase of graphical performance depending on the application. Not really a huge update at all, especially considering the HD 5300 is a rather weak integrated GPU to begin with. I did never expect such a notebook to have any stealler GPU performance anyways and as long as it works perfectly with all the Mac OS X animation as well as video-playback I don't really care for the added performance.
In terms of CPU, it seems like Intel is bragging about up to 25% increased performance. But all benchmarks seems to indicate that the increase is negligible between this one compared to the older one. It's pretty much the same performance levels, but at lower power and heat. So you will get increase battery life and lower heat generation but no real bump in performance.
Have the same questions. IMHO, the upgrade in RAM specs (1833Mhz) might also help boost the MB performance.
Here is the info on the GPU:
Intel HD Graphics 515
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The
Intel HD Graphics 515 (GT2) is a low-end integrated graphics unit, which can be found in the Core m-series of the Skylake generation. This "GT2" version of the Skylake GPU offers 24 Execution Units (EUs) clocked at up to 1000 MHz (depending on the CPU model). Due to its lack of dedicated graphics memory or eDRAM cache, the HD 515 has to access the main memory (2x 64bit DDR3L-1600 / LPDDR3-1866).
Performance
According to Intel, the HD Graphics 515 is up to 41 percent faster than the previous
HD Graphics 5300 (Broadwell). Nevertheless, the GPU will handle only simple games like Counter-Strike or Dota with decent frame rates. Depending on the specific CPU model, memory configuration and TDP (4.5 W, configurable), performance may vary substantially.
Features
The revised video engine now decodes H.265/HEVC completely in hardware and thereby much more efficiently than before. Displays can be connected via DP 1.2 / eDP 1.3 (max. 3840 x 2160 @ 60 Hz), whereas HDMI is limited to the older version 1.4a (max. 3840 x 2160 @ 30 Hz). However, HDMI 2.0 can be added using a DisplayPort converter. Up to three displays can be controlled simultaneously.
Power Consumption
The HD Graphics 515 can be found in Core m processors with 4.5 W TDP (3.5/3.8 W cTDP down, 7 W cTDP up) and is therefore suited for very thin, mostly passively cooled 2-in-1 notebooks and tablets.