Radeon HD 7950 vs Radeon RX 590

Intro

Compare all that 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 as well as 144 Texture Address Units and 32 ROPs.

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

Performance-wise, the Radeon RX 590 should theoretically be a small bit better than the Radeon HD 7950 in general. (explain)

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

Texel Rate

The Radeon RX 590 should be quite a bit (more or less 136%) more effective at texture filtering 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 is quite a bit (about 84%) better at AA than the Radeon HD 7950, and also able to handle higher resolutions more effectively. (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: Bandwidth is the maximum amount of data (in units of megabytes per second) that can be transferred across the external memory interface within a second. It's calculated by multiplying the bus width by its memory speed. In the case of DDR memory, it should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The better the bandwidth is, the faster the card will be in general. It especially helps with anti-aliasing, HDR and high resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that can be applied per second. This figure is calculated by multiplying the total texture units of the card by the core speed of the chip. The better the texel rate, the better the graphics card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in a second.

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