GeForce GTX 1660 Ti vs Radeon HD 7790

Intro

Compare those specifications to the Radeon HD 7790, which comes with clock speeds of 1000 MHz on the GPU, and 1500 MHz on the 1024 MB of GDDR5 memory. It features 896 SPUs along with 56 TAUs and 16 Rasterization Operator Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 7790		85 Watts
GeForce GTX 1660 Ti		120 Watts
	Difference: 35 Watts (41%)

Memory Bandwidth

In theory, the GeForce GTX 1660 Ti should be 207% faster than the Radeon HD 7790 in general, due to its higher bandwidth. (explain)

GeForce GTX 1660 Ti		294912 MB/sec
Radeon HD 7790		96000 MB/sec
	Difference: 198912 (207%)

Texel Rate

The GeForce GTX 1660 Ti will be quite a bit (more or less 157%) faster with regards to texture filtering than the Radeon HD 7790. (explain)

GeForce GTX 1660 Ti		144000 Mtexels/sec
Radeon HD 7790		56000 Mtexels/sec
	Difference: 88000 (157%)

Pixel Rate

If running with a high resolution is important to you, then the GeForce GTX 1660 Ti is a better choice, by far. (explain)

GeForce GTX 1660 Ti		72000 Mpixels/sec
Radeon HD 7790		16000 Mpixels/sec
	Difference: 56000 (350%)

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 data (counted in MB per second) that can be transferred over the external memory interface in one second. It is calculated by multiplying the card's bus width by its memory clock speed. If it uses DDR type RAM, it must be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The higher the card's memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, HDR and high resolutions.

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

Pixel Rate: Pixel rate is the most pixels that the graphics card can possibly record to its local memory per 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 - sometimes also referred to as Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill rate is also dependant on quite a few other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to reach the max fill rate.