GeForce RTX 4090 vs Radeon RX 560

Intro

Compare all of that to the Radeon RX 560, which features GPU clock speed of 1175 MHz, and 4096 MB of GDDR5 RAM running at 1750 MHz through a 128-bit bus. It also is made up of 1024 Stream Processors, 64 TAUs, and 16 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX 560		80 Watts
GeForce RTX 4090		450 Watts
	Difference: 370 Watts (463%)

Memory Bandwidth

As far as performance goes, the GeForce RTX 4090 should in theory be much better than the Radeon RX 560 overall. (explain)

GeForce RTX 4090		1042432 MB/sec
Radeon RX 560		114688 MB/sec
	Difference: 927744 (809%)

Texel Rate

The GeForce RTX 4090 will be much (more or less 1422%) better at AF than the Radeon RX 560. (explain)

GeForce RTX 4090		1144320 Mtexels/sec
Radeon RX 560		75200 Mtexels/sec
	Difference: 1069120 (1422%)

Pixel Rate

If using a high resolution is important to you, then the GeForce RTX 4090 is the winner, by a large margin. (explain)

GeForce RTX 4090		393360 Mpixels/sec
Radeon RX 560		18800 Mpixels/sec
	Difference: 374560 (1992%)

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 (in units of MB per second) that can be transferred past the external memory interface within a second. It is worked out by multiplying the bus width by its memory clock speed. In the case of DDR type RAM, the result should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The higher the memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, HDR and high resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are processed per second. This figure is worked out by multiplying the total texture units by the core speed of the chip. The better the texel rate, the better the video 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 can possibly write to its local memory per second - measured in millions of pixels per second. Pixel rate 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 fill rate also depends on quite a few other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the potential to reach the maximum fill rate.