Radeon HD 7950 vs Radeon RX 590

Intro

Compare those specs to the Radeon RX 590, which features 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 TAUs and 32 Rasterization Operator Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX 590		175 Watts
Radeon HD 7950		200 Watts
	Difference: 25 Watts (14%)

Memory Bandwidth

The Radeon RX 590 should in theory be a little bit faster than the Radeon HD 7950 overall. (explain)

Radeon RX 590		262144 MB/sec
Radeon HD 7950		240000 MB/sec
	Difference: 22144 (9%)

Texel Rate

The Radeon RX 590 should be a lot (approximately 136%) faster with regards to AF than the Radeon HD 7950. (explain)

Radeon RX 590		211536 Mtexels/sec
Radeon HD 7950		89600 Mtexels/sec
	Difference: 121936 (136%)

Pixel Rate

The Radeon RX 590 will be much (approximately 84%) more effective at anti-aliasing than the Radeon HD 7950, and also able to handle higher screen resolutions without slowing down too much. (explain)

Radeon RX 590		47008 Mpixels/sec
Radeon HD 7950		25600 Mpixels/sec
	Difference: 21408 (84%)

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 (measured in MB per second) that can be transported across the external memory interface in a second. The number is worked out by multiplying the interface width by the speed of its memory. If the card has DDR type RAM, the result should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The better the bandwidth is, the faster the card will be in general. It especially helps with AA, HDR and high resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that are processed in one second. This number is calculated 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 handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in one second.

Pixel Rate: Pixel rate is the maximum amount of pixels the graphics card could possibly record to its local memory in a second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the amount of Render Output Units by the clock speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel output rate also depends on quite a few other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the ability to get to the max fill rate.