GeForce GTX 1660 Ti vs Radeon HD 7970

Intro

Compare that to the Radeon HD 7970, which has core speeds of 925 MHz on the GPU, and 1375 MHz on the 3072 MB of GDDR5 RAM. It features 2048 SPUs as well as 128 TAUs and 32 Rasterization Operator Units.

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

Theoretically speaking, the GeForce GTX 1660 Ti will be 12% quicker than the Radeon HD 7970 overall, because of its higher data rate. (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 (approximately 22%) better 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 should be a lot (more or less 143%) more effective at anti-aliasing than the Radeon HD 7970, and also able to handle higher resolutions without losing too much performance. (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: Bandwidth is the largest amount of information (in units of MB per second) that can be moved past the external memory interface in a second. It's calculated by multiplying the interface width by the speed of its memory. If it uses DDR RAM, it should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The better the memory bandwidth, the better the card will be in general. It especially helps with AA, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that are processed per second. This figure is calculated by multiplying the total texture units of the card by the core clock 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 applied in a second.

Pixel Rate: Pixel rate is the most pixels the video card can possibly record to the local memory in a second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the number of Raster Operations Pipelines by the the core 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 output rate also depends on many other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the ability to reach the max fill rate.