GeForce GTX 1660 Ti vs Radeon HD 7850

Intro

Compare all of that to the Radeon HD 7850, which comes with core speeds of 860 MHz on the GPU, and 1200 MHz on the 2048 MB of GDDR5 memory. It features 1024 SPUs along with 64 Texture Address Units 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 7850		130 Watts
	Difference: 10 Watts (8%)

Memory Bandwidth

The GeForce GTX 1660 Ti, in theory, should perform quite a bit faster than the Radeon HD 7850 overall. (explain)

GeForce GTX 1660 Ti		294912 MB/sec
Radeon HD 7850		153600 MB/sec
	Difference: 141312 (92%)

Texel Rate

The GeForce GTX 1660 Ti should be much (about 162%) better at AF than the Radeon HD 7850. (explain)

GeForce GTX 1660 Ti		144000 Mtexels/sec
Radeon HD 7850		55040 Mtexels/sec
	Difference: 88960 (162%)

Pixel Rate

The GeForce GTX 1660 Ti will be a lot (approximately 162%) more effective at full screen anti-aliasing than the Radeon HD 7850, and also will be capable of handling higher resolutions more effectively. (explain)

GeForce GTX 1660 Ti		72000 Mpixels/sec
Radeon HD 7850		27520 Mpixels/sec
	Difference: 44480 (162%)

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 max amount of data (counted in MB per second) that can be transferred over the external memory interface in a second. It's calculated by multiplying the bus width by its memory clock speed. If it uses DDR RAM, the result should be multiplied by 2 again. If DDR5, multiply by 4 instead. The better the card's memory bandwidth, the faster the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that can be applied in one second. This number is worked out by multiplying the total number of texture units by the core clock speed of the chip. The higher the texel rate, the better the graphics card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in a second.

Pixel Rate: Pixel rate is the maximum number of pixels the video card can possibly write to the local memory per second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of colour ROPs by the the card's clock speed. 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 fill rate is also dependant on lots of other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to reach the maximum fill rate.