GeForce GTX 1660 Ti vs Radeon R9 Nano

Intro

Compare those specs to the Radeon R9 Nano, which comes with a core clock frequency of 1000 MHz and a HBM memory speed of 500 MHz. It also makes use of a 4096-bit memory bus, and uses a 28 nm design. It is made up of 4096 SPUs, 256 TAUs, and 64 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 1660 Ti		120 Watts
Radeon R9 Nano		175 Watts
	Difference: 55 Watts (46%)

Memory Bandwidth

In theory, the Radeon R9 Nano is 74% faster than the GeForce GTX 1660 Ti in general, because of its greater data rate. (explain)

Radeon R9 Nano		512000 MB/sec
GeForce GTX 1660 Ti		294912 MB/sec
	Difference: 217088 (74%)

Texel Rate

The Radeon R9 Nano will be quite a bit (approximately 78%) better at AF than the GeForce GTX 1660 Ti. (explain)

Radeon R9 Nano		256000 Mtexels/sec
GeForce GTX 1660 Ti		144000 Mtexels/sec
	Difference: 112000 (78%)

Pixel Rate

If running with lots of anti-aliasing is important to you, then the GeForce GTX 1660 Ti is superior to the Radeon R9 Nano, though not by far. (explain)

GeForce GTX 1660 Ti		72000 Mpixels/sec
Radeon R9 Nano		64000 Mpixels/sec
	Difference: 8000 (13%)

Please note that the above 'benchmarks' are all just theoretical - the results were calculated based on the card's specifications, and real-world performance may (and probably will) vary at least a bit.

Price Comparison

Specifications

Memory Bandwidth: Memory bandwidth is the largest amount of information (counted in megabytes per second) that can be transported past the external memory interface in a second. It's calculated by multiplying the interface width by its memory clock speed. If it uses DDR type RAM, it must be multiplied by 2 again. If DDR5, multiply by 4 instead. The higher the card's memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that are processed in one second. This number is worked out by multiplying the total number of texture units by the core clock speed of the chip. The better this number, the better the graphics card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in a second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics chip can possibly write to the local memory per second - measured in millions of pixels per second. The figure is worked out by multiplying the number of colour ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate is also dependant on quite a few other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to get to the maximum fill rate.