GeForce GTX 1660 Ti vs Radeon HD 7970

Intro

Compare that to the Radeon HD 7970, which features a GPU core clock speed of 925 MHz, and 3072 MB of GDDR5 RAM set to run at 1375 MHz through a 384-bit bus. It also is made up of 2048 Stream Processors, 128 TAUs, 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 7970		250 Watts
	Difference: 130 Watts (108%)

Memory Bandwidth

As far as performance goes, the GeForce GTX 1660 Ti should in theory be a small bit better than the Radeon HD 7970 overall. (explain)

GeForce GTX 1660 Ti		294912 MB/sec
Radeon HD 7970		264000 MB/sec
	Difference: 30912 (12%)

Texel Rate

The GeForce GTX 1660 Ti is quite a bit (about 22%) more effective at texture filtering than the Radeon HD 7970. (explain)

GeForce GTX 1660 Ti		144000 Mtexels/sec
Radeon HD 7970		118400 Mtexels/sec
	Difference: 25600 (22%)

Pixel Rate

The GeForce GTX 1660 Ti will be a lot (approximately 143%) more effective at full screen anti-aliasing than the Radeon HD 7970, and also should be able to handle higher resolutions while still performing well. (explain)

GeForce GTX 1660 Ti		72000 Mpixels/sec
Radeon HD 7970		29600 Mpixels/sec
	Difference: 42400 (143%)

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 maximum amount of information (in units of megabytes per second) that can be transferred past the external memory interface in a second. It's worked out by multiplying the card's bus width by the speed of its memory. If it uses DDR RAM, it should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The higher the bandwidth is, the better the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that can be applied 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 higher the texel rate, the better the graphics card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed per second.

Pixel Rate: Pixel rate is the most pixels that the graphics card can possibly write to its local memory in one second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount of colour ROPs by the the core speed of the card. 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 rate also depends on many other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the ability to get to the maximum fill rate.