The comparisons between MediaTek and Qualcomm Snapdragon chipsets is nothing new. It has been done so, for all the other chipsets that both the brands have launched and the same protocol has been applied for comparing their chipsets when it comes to 5G as well. We have always known of Snapdragon chipsets to be expensive and it is nothing new with its 5G processors.
Out of both the chipsets that are mentioned here, Snapdragon 865+ is the pricier one compared to the MediaTek Dimensity 1000+. Since both the chipsets are additions to the 5G segments, there is no doubt that they are integrated with the best of features and specs. On many parameters, Snapdragon 865+ takes lead over the MediaTek Dimensity 1000+.
However, I would say that it is only so on papers and in terms of the performance aspect, it is no match to the MediaTek Dimensity 1000+. Snapdragon 865 plus has a 1x 2.84GHz (Cortex A77) 3x 2.4GHz (Cortex A77) 4x 1.8GHz (Cortex-A55) CPU. It is 7nm in size. Snapdragon has an edge in terms of display rates by supporting 60Hz at 4K, and up to 144Hz for QHD+ screens. MediaTek notes that it supports 90Hz at QHD+ and 120Hz at FHD+ resolutions. However, the MediaTek chip has a 5 percent better CPU clock speed than the Snapdragon 865+ processor.
The overall CPU clock speed of this chipset tends to be better. Besides, it has some really amazing features present, such as hardware-assisted virtualization, out-of-order execution, AES and TrustZone etc. All these features are absent in the Snapdragon 865 Plus processor.
Dimensity 1000+ also comes with the MediaTek HyperEngine 2.0 game technology that allows it to support intense and power-packed games with ease. It also comes with the MediaTek 5G Ultra save technology that enhances the 5G modem and its performance. I have used MediaTek chipsets that are integrated with the HyperEngine Technology and the performance is top notch therefore, I see no match to that.
As far as the connectivity aspect of both the chipsets is considered, the Snapdragon 865+ supports both mmWave and sub-6Ghz flavors of 5G. Meanwhile, Dimensity 1000 plus only supports sub-6Ghz. This provides MediaTek with an edge because sub-6Ghz is expected to be the dominant form of 5G connectivity.
Overall, out of both the chipsets that are mentioned here, MediaTek Dimensity 1000+ undoubtedly comes across as the better option over the Snapdragon 865+ especially in terms of the performance. And the fact that phones with MediaTek Dimensity 1000+ would be more affordable over the Snapdragon powered smartphones kind of takes the win here.