Radeon RX 460 vs Radeon RX 5700 XT

Intro

Compare that to the Radeon RX 5700 XT, which has a clock frequency of 1605 MHz and a GDDR6 memory frequency of 1750 MHz. It also makes use of a 256-bit bus, and uses a 7 nm design. It is made up of 2560 SPUs, 160 TAUs, and 64 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX 460		75 Watts
Radeon RX 5700 XT		225 Watts
	Difference: 150 Watts (200%)

Memory Bandwidth

In theory, the Radeon RX 5700 XT will be 310% faster than the Radeon RX 460 overall, because of its greater bandwidth. (explain)

Radeon RX 5700 XT		458752 MB/sec
Radeon RX 460		112000 MB/sec
	Difference: 346752 (310%)

Texel Rate

The Radeon RX 5700 XT is a lot (about 321%) better at AF than the Radeon RX 460. (explain)

Radeon RX 5700 XT		256800 Mtexels/sec
Radeon RX 460		61040 Mtexels/sec
	Difference: 195760 (321%)

Pixel Rate

If using high levels of AA is important to you, then the Radeon RX 5700 XT is a better choice, and very much so. (explain)

Radeon RX 5700 XT		102720 Mpixels/sec
Radeon RX 460		17440 Mpixels/sec
	Difference: 85280 (489%)

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 data (in units of megabytes per second) that can be moved over the external memory interface in a second. It is calculated by multiplying the card's bus width by its memory speed. If it uses DDR type RAM, it must be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The higher the memory bandwidth, the better 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 in one second. This figure is worked out by multiplying the total number of texture units by the core clock speed of the chip. The higher this number, the better the graphics card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels per second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics chip can 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 Render Output Units by the the core speed of the card. ROPs (Raster Operations Pipelines - aka 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, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to reach the max fill rate.