GeForce GTX 1660 Ti vs Radeon R9 380X

Intro

Compare those specs to the Radeon R9 380X, which comes with core clock speeds of 970 MHz on the GPU, and 1425 MHz on the 4096 MB of GDDR5 memory. It features 2048 SPUs as well as 128 Texture Address Units and 32 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 1660 Ti		120 Watts
Radeon R9 380X		190 Watts
	Difference: 70 Watts (58%)

Memory Bandwidth

In theory, the GeForce GTX 1660 Ti should be 62% faster than the Radeon R9 380X in general, due to its greater bandwidth. (explain)

GeForce GTX 1660 Ti		294912 MB/sec
Radeon R9 380X		182400 MB/sec
	Difference: 112512 (62%)

Texel Rate

The GeForce GTX 1660 Ti will be a bit (about 16%) better at texture filtering than the Radeon R9 380X. (explain)

GeForce GTX 1660 Ti		144000 Mtexels/sec
Radeon R9 380X		124160 Mtexels/sec
	Difference: 19840 (16%)

Pixel Rate

The GeForce GTX 1660 Ti should be much (about 132%) faster with regards to full screen anti-aliasing than the Radeon R9 380X, and capable of handling higher screen resolutions better. (explain)

GeForce GTX 1660 Ti		72000 Mpixels/sec
Radeon R9 380X		31040 Mpixels/sec
	Difference: 40960 (132%)

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: Bandwidth is the largest amount of information (measured in megabytes per second) that can be transferred over the external memory interface in a second. It is calculated by multiplying the bus width by the speed of its memory. In the case of DDR type memory, it should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The higher the memory bandwidth, the faster the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

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

Pixel Rate: Pixel rate is the maximum amount of pixels the graphics card could possibly write to its local memory in one second - measured in millions of pixels per second. The number is calculated by multiplying the amount of colour ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel output rate also depends on lots of other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to get to the max fill rate.