GeForce RTX 2080 vs Radeon RX 470 4GB

Intro

Compare all that to the Radeon RX 470 4GB, which has GPU clock speed of 926 MHz, and 4096 MB of GDDR5 memory set to run at 1650 MHz through a 256-bit bus. It also features 2048 SPUs, 128 Texture Address Units, and 32 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX 470 4GB		120 Watts
GeForce RTX 2080		215 Watts
	Difference: 95 Watts (79%)

Memory Bandwidth

In theory, the GeForce RTX 2080 should perform quite a bit faster than the Radeon RX 470 4GB in general. (explain)

GeForce RTX 2080		458752 MB/sec
Radeon RX 470 4GB		211200 MB/sec
	Difference: 247552 (117%)

Texel Rate

The GeForce RTX 2080 will be much (approximately 135%) better at AF than the Radeon RX 470 4GB. (explain)

GeForce RTX 2080		278760 Mtexels/sec
Radeon RX 470 4GB		118528 Mtexels/sec
	Difference: 160232 (135%)

Pixel Rate

The GeForce RTX 2080 is a lot (more or less 227%) more effective at AA than the Radeon RX 470 4GB, and also will be capable of handling higher resolutions without losing too much performance. (explain)

GeForce RTX 2080		96960 Mpixels/sec
Radeon RX 470 4GB		29632 Mpixels/sec
	Difference: 67328 (227%)

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 largest amount of data (in units of megabytes per second) that can be transported past the external memory interface in a second. The number is calculated by multiplying the interface width by its memory speed. In the case of DDR RAM, the result should be multiplied by 2 again. If DDR5, multiply by 4 instead. The better the memory bandwidth, the faster the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are applied per second. This number is calculated by multiplying the total amount of texture units by the core speed of the chip. The better this number, the better the card will be at 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 video card could possibly record to the local memory per second - measured in millions of pixels per second. The number is worked out by multiplying the amount of colour ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill rate also depends on quite a few other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to reach the maximum fill rate.