Radeon RX 460 vs Radeon RX 590

Intro

Compare all of that to the Radeon RX 590, which comes with a clock frequency of 1469 MHz and a GDDR5 memory frequency of 2000 MHz. It also makes use of a 256-bit bus, and makes use of a 12 nm design. It features 2304 SPUs, 144 Texture Address Units, and 32 Raster Operation Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX 460		75 Watts
Radeon RX 590		175 Watts
	Difference: 100 Watts (133%)

Memory Bandwidth

Theoretically speaking, the Radeon RX 590 should be 134% faster than the Radeon RX 460 overall, due to its greater data rate. (explain)

Radeon RX 590		262144 MB/sec
Radeon RX 460		112000 MB/sec
	Difference: 150144 (134%)

Texel Rate

The Radeon RX 590 will be quite a bit (more or less 247%) better at AF than the Radeon RX 460. (explain)

Radeon RX 590		211536 Mtexels/sec
Radeon RX 460		61040 Mtexels/sec
	Difference: 150496 (247%)

Pixel Rate

The Radeon RX 590 should be much (about 170%) more effective at AA than the Radeon RX 460, and capable of handling higher screen resolutions while still performing well. (explain)

Radeon RX 590		47008 Mpixels/sec
Radeon RX 460		17440 Mpixels/sec
	Difference: 29568 (170%)

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 max amount of data (measured in MB per second) that can be moved past the external memory interface in a second. It is worked out by multiplying the card's interface width by the speed of its memory. If it uses DDR RAM, it should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The better the card's memory bandwidth, the better the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

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

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics chip could possibly record to the local memory in a second - measured in millions of pixels per second. The number is calculated by multiplying the amount of colour ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel rate also depends on many other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the ability to reach the max fill rate.