GeForce GTX 1660 Ti vs Radeon HD 7870

Intro

Compare those specs to the Radeon HD 7870, which features a clock frequency of 1000 MHz and a GDDR5 memory frequency of 1200 MHz. It also features a 256-bit memory bus, and makes use of a 28 nm design. It features 1280 SPUs, 80 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 HD 7870		175 Watts
	Difference: 55 Watts (46%)

Memory Bandwidth

In theory, the GeForce GTX 1660 Ti should be a lot faster than the Radeon HD 7870 in general. (explain)

GeForce GTX 1660 Ti		294912 MB/sec
Radeon HD 7870		153600 MB/sec
	Difference: 141312 (92%)

Texel Rate

The GeForce GTX 1660 Ti will be quite a bit (more or less 80%) more effective at texture filtering than the Radeon HD 7870. (explain)

GeForce GTX 1660 Ti		144000 Mtexels/sec
Radeon HD 7870		80000 Mtexels/sec
	Difference: 64000 (80%)

Pixel Rate

If running with a high resolution is important to you, then the GeForce GTX 1660 Ti is superior to the Radeon HD 7870, and very much so. (explain)

GeForce GTX 1660 Ti		72000 Mpixels/sec
Radeon HD 7870		32000 Mpixels/sec
	Difference: 40000 (125%)

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 max amount of information (counted in megabytes per second) that can be moved over the external memory interface in a second. The number is worked out by multiplying the interface width by its memory speed. If it uses DDR memory, it should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The higher the 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 number of texture map elements (texels) that can be processed per second. This figure is calculated by multiplying the total number of texture units of the card by the core speed of the chip. The better the texel rate, the better the graphics card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels 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 number is calculated by multiplying the amount of Raster Operations Pipelines by the clock speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate also depends on lots of other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to get to the maximum fill rate.