Before we can even judge if it's comparable to similarly priced tablets...
Do we even know what the cost of the Switch is?
Though personally I don't think it's going to be anywhere close in power to even the PS4/XB1. (Not even considering the mid-gen models of PS4k/Scorpio.) I think, if anything, it's going to be on par with the U. I doubt it'll be that much more powerful. (I'd hope it's not less powerful... because that would be foolish.) Mostly because in order to keep the battery life somewhat decent they'll have to make compromises in CPU/GPU power.
I could see them, once again, following the idea of sacrificing power for a gimmick.
According to
Gamespot , "
UK retailer GameSeek is taking preorders for the
Nintendo Switch with a guaranteed price of GBP£198.50 (USD$246.79)."
I think for £198.50/246.79USD, the Switch will have a harder time being very powerful where the Switch has a fast CPU and video chip similar to the original PS4/XB1 with AMD CPU/GPU, and faster higher bandwidth RAM.
The Switch may have a difficult time having better performance as similarly priced tablets released around March 2017 because new mobile chips will be faster when installed in new tablets.
I read on
Gamestop that the Switch uses a variant of Tegra processor which is based on the ARM instruction set, which is what is used to power modern smartphones and tablets.
The Tegra X1 is about as powerful as the Xbox 360 console, but the Xbox 360 sometimes displayed games with more detail.
"The Tegra X1 debuted in March 2015 with promises of PS3/Xbox 360 equivalent graphics
As Digital Foundry notes, Doom 3 BFG was natively ported to the Shield platform, and ran at 1080p and 60 frames per second in comparison to the 720p30 presentation on last-generation consoles. However, close comparisons suggested a significantly lower level of model complexity, normal and shadow maps, and texture resolution on the Nvidia hardware by comparison."
Polygon
I bet, the Switch may use the Tegra X1, or a more affordable slower version of the Tegra X1 with less features found in the original X1. There is a chance that the Switch will uses a CPU/GPU similar to the Tegra K1 found on the $199 Nvidia Shield tablet to keep the price at $247, and still come with accessories like a charger, TV dock, HDMI cable, two removable wireless controllers, and built-in Switch tablet features like stereo speakers, headphone/headset jack, video and charging ports for the TV dock, HD multi-touch touchscreen, and microphone which are built-into the Switch's tablet.
The most basic version of Nvidia Shield TV with the Tegra X1 console cost $199, and it comes with a console with 3GB of RAM, 16GB flash ssd storage, wireless gamepad controller, HDMI cable, USB cable and power brick which is a phone charger. The Shield TV does not come have a touchscreen, TV dock, internal battery, built-in speakers, microphone, and other accessories which come with the Switch, so the Switch may use slower parts to keep the price at $247 while coming with more accessories, and extra parts built-into the tablet and TV dock .
There is a chance that the Switch will be more powerful than the Wii U. But, the Wii U can still be more powerful than the Switch. The Wii U uses a PowerPC Espresso CPU with a clock speed of 1.24 GHz, and AMD Radeon "Latte" with a 550 MHz clock speed GPU. The Wii U GPU is based on Radeon R600/R700. PowerPC CPU chips are found in older Apple PCs before Apple switched to Intel Chips, Xbox 360( 3.2 GHz
PowerPC Tri-Core Xenon ), and some web servers which uses PowerPC processors. The AMD R600/700 is a video card which was used in more powerful PCs in 2007.
The Wii U console also gets its power from a 75W power adapter plugged into a power outlet, and the console has a better cooling system with a large heatsink and fan, so it can run faster for a longer amount of time without overheating and high power consumption/poor battery life problems like a tablet where its battery life becomes lower, and gets very hot when the CPU, RAM, and GPU usage is high.