GeForce GTX 1660 Ti vs Radeon HD 7970

Intro

Compare those specs to the Radeon HD 7970, which has a core clock speed of 925 MHz and a GDDR5 memory speed of 1375 MHz. It also uses a 384-bit memory bus, and uses a 28 nm design. It features 2048 SPUs, 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

Theoretically speaking, the GeForce GTX 1660 Ti is 12% faster than the Radeon HD 7970 overall, because of its greater 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 (about 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 much (more or less 143%) more effective at AA than the Radeon HD 7970, and also 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: Bandwidth is the maximum amount of information (measured in megabytes per second) that can be moved past the external memory interface in a second. It is calculated by multiplying the interface width by its memory speed. In the case of DDR memory, it should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The higher the bandwidth is, the better 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 are applied per second. This is calculated by multiplying the total amount of texture units of the card by the core clock speed of the chip. The better the texel rate, the better the video card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in one second.

Pixel Rate: Pixel rate is the most pixels that the graphics chip could possibly record to the local memory in a second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel output rate also depends on quite a few other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to get to the max fill rate.