GeForce GTX 1660 Ti vs Radeon HD 7950

Intro

Compare those specifications to the Radeon HD 7950, which features a clock frequency of 800 MHz and a GDDR5 memory speed of 1250 MHz. It also makes use of a 384-bit bus, and makes use of a 28 nm design. It features 1792 SPUs, 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

As far as performance goes, the GeForce GTX 1660 Ti should in theory be a lot better than the Radeon HD 7950 overall. (explain)

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

Texel Rate

The GeForce GTX 1660 Ti should be quite a bit (about 61%) more effective at texture filtering than the Radeon HD 7950. (explain)

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

Pixel Rate

The GeForce GTX 1660 Ti should be quite a bit (more or less 181%) faster with regards to anti-aliasing than the Radeon HD 7950, and should be able to handle higher resolutions without slowing down too much. (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: Memory bandwidth is the largest amount of information (measured in MB per second) that can be moved across the external memory interface in a second. It is calculated by multiplying the card's interface width by its memory clock speed. If it uses DDR type memory, the result should be multiplied by 2 again. If DDR5, multiply by 4 instead. The better 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 applied in one second. This figure is worked out by multiplying the total texture units by the core speed of the chip. The better this number, the better the graphics 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 maximum amount of pixels that the graphics card could possibly write to the local memory in a second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of colour ROPs by the the core 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 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 reach the max fill rate.