That means the 2015 model actually has 14.5GB of RAM. While Iris may perform similarly to the GPU in the 2013 model, it doesn't have dedicated VRAM and therefore uses the 16GB on the machine. ![]() That said - another thing to consider is that, even if you see no discernable gains from the GPU, you're offloading processing from the system's RAM to the GPU's. It's my understanding that LR will utilize different cores/threads for multiple processes. While it may not use acceleration on export, I have seen gains in speed when exporting multiple collections on a quad core CPU. There's a clear difference in speed using integrated graphics and dedicated graphics on my machine when acceleration is turned on in Develop mode. Not sure where you've heard the differences are negligible. But if there is no discernible benefits, I might as well go with lower weight, lower heat and higher battery life. I am not too sure about how this works, and frankly confused at this point.Īt the end of the day, I am willing to accept the disadvantages of weight, heat and battery life if the quad cores do have noticeable benefits in photo editing. So, combined with the previous point about Lightroom not necessarily using all 4 cores, I am bound to think that a i5 at 2.9-3.3 GHz would be better than an i7 at 2.2-3.6 GHz. Thirdly, apparently what matters in Lightroom more in terms of CPU is the clock speed. Again, if your experience proves this wrong, I would be very happy as it would simplify my decision making. Secondly, about the potential gains of quad core CPUs, multithreading is not well implemented in Lightroom, due to which (apparently) in most situations, Lightroom (and even Photoshop to some extent) don't make use of all 4 cores. Would you happen to have first hand experience with dedicated GPUs giving performance boosts in Lightroom? Firstly, from what I understand through my online research, Lightroom does not use GPU acceleration during exports, and only uses it sporadically in develop mode, where the benefits are negligible, and in fact counterproductive in many cases causing errors. In my research online, the answer is not so black and white. Those will far outweigh any advantages the newer SSD has. The 2013 model has a much faster processor and a dedicated graphic card. The SSD will be plenty fast enough, I wouldn't even worry about that. More info is available here.Assuming they're around the same price, the 2013 machine is, by far, the better one. An "i5" 8300H is more powerful than either. The difference between an "i5" 8250U and "i7" 8550U is less than it might sound like. U-series vs H-series, and 2-core vs 4-core, mean more than Core i5 vs Core i7. Note: Sharp and OLED Samsung panels are true 4K. These have mostly been phased out, but are still present or available in some models. These trick consumers because the listed resolution numbers are the same, but the detail is less, and they produce artifacts. Some laptops that list high resolutions (1440p through 4K) use "PenTile" RG/BW or WR/GB matrix panels instead of RGB/RGB. ![]() Many IPS displays are far from perfect still. There may be other concerns too such as colorspace or response times.
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