Radeon RX 460 vs Radeon RX 5700 XT

Intro

Compare those specifications to the Radeon RX 5700 XT, which features a clock frequency of 1605 MHz and a GDDR6 memory speed of 1750 MHz. It also features a 256-bit memory bus, and makes use of a 7 nm design. It is made up of 2560 SPUs, 160 Texture Address Units, and 64 ROPs.

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% quicker than the Radeon RX 460 overall, because of its higher data rate. (explain)

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

Texel Rate

The Radeon RX 5700 XT should be a lot (approximately 321%) more effective at anisotropic filtering than the Radeon RX 460. (explain)

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

Pixel Rate

The Radeon RX 5700 XT will be a lot (approximately 489%) faster with regards to AA than the Radeon RX 460, and will be able to handle higher resolutions without slowing down too much. (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 maximum amount of information (in units of MB per second) that can be transported over the external memory interface within a second. It is worked out by multiplying the interface width by its memory clock speed. If the card has DDR RAM, it must be multiplied by 2 once again. If DDR5, multiply by 4 instead. The higher the bandwidth is, the faster 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 amount of texture map elements (texels) that are applied per second. This is calculated by multiplying the total 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 in one second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics chip could possibly write to the local memory in one second - measured in millions of pixels per second. The number is worked out by multiplying the amount of colour ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate is also dependant on lots of other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to get to the max fill rate.