GeForce GTX 1660 Ti vs Radeon RX Vega 64

Intro

Compare all that to the Radeon RX Vega 64, which makes use of a 14 nm design. AMD has set the core speed at 1247 MHz. The HBM2 memory works at a frequency of 1890 MHz on this particular card. It features 4096 SPUs along with 256 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 64		295 Watts
	Difference: 175 Watts (146%)

Memory Bandwidth

Theoretically speaking, the Radeon RX Vega 64 should perform a lot faster than the GeForce GTX 1660 Ti overall. (explain)

Radeon RX Vega 64		495411 MB/sec
GeForce GTX 1660 Ti		294912 MB/sec
	Difference: 200499 (68%)

Texel Rate

The Radeon RX Vega 64 should be much (more or less 122%) better at anisotropic filtering than the GeForce GTX 1660 Ti. (explain)

Radeon RX Vega 64		319232 Mtexels/sec
GeForce GTX 1660 Ti		144000 Mtexels/sec
	Difference: 175232 (122%)

Pixel Rate

The Radeon RX Vega 64 will be a bit (approximately 11%) faster with regards to AA than the GeForce GTX 1660 Ti, and also should be able to handle higher resolutions without slowing down too much. (explain)

Radeon RX Vega 64		79808 Mpixels/sec
GeForce GTX 1660 Ti		72000 Mpixels/sec
	Difference: 7808 (11%)

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 megabytes per second) that can be transported over the external memory interface in a second. The number is worked out by multiplying the card's bus width by its memory clock speed. If it uses DDR type RAM, it should be multiplied by 2 once again. If it uses 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 higher screen resolutions.

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

Pixel Rate: Pixel rate is the maximum amount of pixels the graphics card could possibly record to the local memory per second - measured in millions of pixels per second. The figure is calculated by multiplying the number of colour 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 output rate also depends on lots of other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to reach the maximum fill rate.