GeForce GTX 1660 Ti vs Radeon RX Vega 56

Intro

Compare all that to the Radeon RX Vega 56, which uses a 14 nm design. AMD has set the core frequency at 1156 MHz. The HBM2 RAM runs at a speed of 1600 MHz on this model. It features 3584 SPUs as well as 224 TAUs and 64 Rasterization Operator Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 1660 Ti		120 Watts
Radeon RX Vega 56		210 Watts
	Difference: 90 Watts (75%)

Memory Bandwidth

In theory, the Radeon RX Vega 56 should be quite a bit faster than the GeForce GTX 1660 Ti in general. (explain)

Radeon RX Vega 56		419430 MB/sec
GeForce GTX 1660 Ti		294912 MB/sec
	Difference: 124518 (42%)

Texel Rate

The Radeon RX Vega 56 will be much (approximately 80%) better at anisotropic filtering than the GeForce GTX 1660 Ti. (explain)

Radeon RX Vega 56		258944 Mtexels/sec
GeForce GTX 1660 Ti		144000 Mtexels/sec
	Difference: 114944 (80%)

Pixel Rate

If running with a high resolution is important to you, then the Radeon RX Vega 56 is the winner, not by a very large margin though. (explain)

Radeon RX Vega 56		73984 Mpixels/sec
GeForce GTX 1660 Ti		72000 Mpixels/sec
	Difference: 1984 (3%)

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 information (in units of megabytes per second) that can be transported across the external memory interface in a second. It's calculated by multiplying the interface width by its memory clock speed. In the case of DDR RAM, it must be multiplied by 2 again. If DDR5, multiply by 4 instead. The higher the 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 amount of texture map elements (texels) that can be applied in one second. This figure is calculated by multiplying the total amount of texture units of the card by the core clock speed of the chip. The higher this number, the better the card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels in a second.

Pixel Rate: Pixel rate is the most pixels that the graphics chip could possibly record to the local memory in one second - measured in millions of pixels per second. The figure is worked out by multiplying the number of Raster Operations Pipelines by the the core clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate is also dependant on many other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the potential to get to the maximum fill rate.