GeForce GTX 1660 Ti vs Radeon HD 7950

Intro

Compare all of that to the Radeon HD 7950, which uses a 28 nm design. AMD has clocked the core speed at 800 MHz. The GDDR5 memory runs at a speed of 1250 MHz on this model. It features 1792 SPUs as well as 112 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 7950		200 Watts
	Difference: 80 Watts (67%)

Memory Bandwidth

In theory, the GeForce GTX 1660 Ti will be 23% faster than the Radeon HD 7950 overall, because of its greater data rate. (explain)

GeForce GTX 1660 Ti		294912 MB/sec
Radeon HD 7950		240000 MB/sec
	Difference: 54912 (23%)

Texel Rate

The GeForce GTX 1660 Ti is quite a bit (more or less 61%) better at AF than the Radeon HD 7950. (explain)

GeForce GTX 1660 Ti		144000 Mtexels/sec
Radeon HD 7950		89600 Mtexels/sec
	Difference: 54400 (61%)

Pixel Rate

If using a high resolution is important to you, then the GeForce GTX 1660 Ti is the winner, and very much so. (explain)

GeForce GTX 1660 Ti		72000 Mpixels/sec
Radeon HD 7950		25600 Mpixels/sec
	Difference: 46400 (181%)

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 data (measured in MB per second) that can be transported across the external memory interface in one second. It is calculated by multiplying the bus width by its memory clock speed. If it uses DDR memory, the result should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The higher the card's memory bandwidth, 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 can be processed per second. This figure is worked out by multiplying the total texture units by the core clock speed of the chip. The better this number, the better the graphics card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels in one second.

Pixel Rate: Pixel rate is the maximum number of 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 Raster Operations Pipelines by the the card's clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate is also dependant on lots of other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to get to the max fill rate.