Radeon HD 7950 3GB vs Radeon RX 590

Intro

Compare those specs to the Radeon RX 590, which comes with a clock speed of 1469 MHz and a GDDR5 memory frequency of 2000 MHz. It also uses a 256-bit memory bus, and uses a 12 nm design. It is made up of 2304 SPUs, 144 TAUs, 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 3GB		200 Watts
	Difference: 25 Watts (14%)

Memory Bandwidth

Theoretically speaking, the Radeon RX 590 should be just a bit faster than the Radeon HD 7950 3GB in general. (explain)

Radeon RX 590		262144 MB/sec
Radeon HD 7950 3GB		240000 MB/sec
	Difference: 22144 (9%)

Texel Rate

The Radeon RX 590 should be a lot (approximately 136%) faster with regards to texture filtering than the Radeon HD 7950 3GB. (explain)

Radeon RX 590		211536 Mtexels/sec
Radeon HD 7950 3GB		89600 Mtexels/sec
	Difference: 121936 (136%)

Pixel Rate

If running with lots of anti-aliasing is important to you, then the Radeon RX 590 is a better choice, by far. (explain)

Radeon RX 590		47008 Mpixels/sec
Radeon HD 7950 3GB		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 max amount of information (counted in megabytes per second) that can be transported over the external memory interface within a second. It's worked out by multiplying the bus width by the speed of its memory. In the case of DDR type RAM, it should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The higher the bandwidth is, the better the card will be in general. It especially helps with AA, High Dynamic Range 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 number of texture units by the core speed of the chip. The higher the texel rate, the better the video card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels in one second.

Pixel Rate: Pixel rate is the most pixels that the graphics chip could possibly record to the local memory in one second - measured in millions of pixels per second. The figure is calculated 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 outputting the pixels (image) to the screen. The actual pixel output rate also depends on many other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the ability to get to the max fill rate.