GeForce GTX 1660 Ti vs Radeon RX Vega 56

Intro

Compare those specifications to the Radeon RX Vega 56, which features core speeds of 1156 MHz on the GPU, and 1600 MHz on the 8192 MB of HBM2 RAM. It features 3584 SPUs along with 224 Texture Address Units and 64 ROPs.

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

The Radeon RX Vega 56, in theory, should be a lot faster than the GeForce GTX 1660 Ti overall. (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 is quite a bit (approximately 80%) more effective 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 high levels of AA is important to you, then the Radeon RX Vega 56 is superior to the GeForce GTX 1660 Ti, but it probably won't make a huge difference. (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: Bandwidth is the maximum amount of information (in units of megabytes per second) that can be transported over the external memory interface in one second. It is calculated by multiplying the interface width by its memory clock speed. In the case of DDR memory, it should be multiplied by 2 again. If DDR5, multiply by 4 instead. The better the memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be applied in one second. This is calculated by multiplying the total number of texture units by the core speed of the chip. The better this number, the better the video card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in one second.

Pixel Rate: Pixel rate is the maximum number of pixels the graphics card can possibly write to the local memory in a second - measured in millions of pixels per second. The figure is worked out by multiplying the amount of ROPs by the clock speed of the card. 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 quite a few other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to get to the max fill rate.