Radeon R9 270 vs Radeon RX 590

Intro

Compare those specs to the Radeon RX 590, which comes with core clock speeds of 1469 MHz on the GPU, and 2000 MHz on the 8192 MB of GDDR5 memory. It features 2304 SPUs along with 144 Texture Address Units and 32 Rasterization Operator Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R9 270		150 Watts
Radeon RX 590		175 Watts
	Difference: 25 Watts (17%)

Memory Bandwidth

Theoretically speaking, the Radeon RX 590 is 46% faster than the Radeon R9 270 in general, due to its greater bandwidth. (explain)

Radeon RX 590		262144 MB/sec
Radeon R9 270		179200 MB/sec
	Difference: 82944 (46%)

Texel Rate

The Radeon RX 590 should be quite a bit (approximately 194%) better at AF than the Radeon R9 270. (explain)

Radeon RX 590		211536 Mtexels/sec
Radeon R9 270		72000 Mtexels/sec
	Difference: 139536 (194%)

Pixel Rate

The Radeon RX 590 will be much (more or less 63%) more effective at AA than the Radeon R9 270, and also able to handle higher resolutions without slowing down too much. (explain)

Radeon RX 590		47008 Mpixels/sec
Radeon R9 270		28800 Mpixels/sec
	Difference: 18208 (63%)

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 data (measured in megabytes per second) that can be moved over the external memory interface within a second. It is calculated by multiplying the bus width by its memory speed. If the card has DDR RAM, it should be multiplied by 2 again. If 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 higher screen resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that are applied per second. This figure is worked out by multiplying the total amount of texture units of the card by the core clock 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 processed per second.

Pixel Rate: Pixel rate is the most pixels the graphics card can possibly record to the local memory per second - measured in millions of pixels per second. The number is calculated by multiplying the amount of Raster Operations Pipelines by the the core speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate also depends on lots of other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the potential to get to the maximum fill rate.