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Radeon HD 7950 vs Radeon RX 590

Intro

The Radeon HD 7950 makes use of a 28 nm design. AMD has clocked the core frequency at 800 MHz. The GDDR5 RAM runs at a speed of 1250 MHz on this model. It features 1792 SPUs along with 112 TAUs and 32 ROPs.

Compare all that to the Radeon RX 590, which has 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 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

Theoretically, the Radeon RX 590 should perform just a bit faster 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 is much (more or less 136%) faster with regards to anisotropic 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 will be quite a bit (more or less 84%) faster with regards to full screen anti-aliasing than the Radeon HD 7950, and should be capable of handling higher 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

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Radeon HD 7950

Amazon.com

Check prices at:

Radeon RX 590

Amazon.com

Check prices at:

Please note that the price comparisons are based on search keywords - sometimes it might show cards with very similar names that are not exactly the same as the one chosen in the comparison. We do try to filter out the wrong results as best we can, though.

Specifications

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Model Radeon HD 7950 Radeon RX 590
Manufacturer AMD AMD
Year January 2012 November 2018
Code Name Tahiti Pro Polaris 30
Memory 1536 MB 8192 MB
Core Speed 800 MHz 1469 MHz
Memory Speed 5000 MHz 8000 MHz
Power (Max TDP) 200 watts 175 watts
Bandwidth 240000 MB/sec 262144 MB/sec
Texel Rate 89600 Mtexels/sec 211536 Mtexels/sec
Pixel Rate 25600 Mpixels/sec 47008 Mpixels/sec
Unified Shaders 1792 2304
Texture Mapping Units 112 144
Render Output Units 32 32
Bus Type GDDR5 GDDR5
Bus Width 384-bit 256-bit
Fab Process 28 nm 12 nm
Transistors 4313 million 5700 million
Bus PCIe 3.0 x16 PCIe 3.0 x16
DirectX Version DirectX 11.1 DirectX 12.0
OpenGL Version OpenGL 4.2 OpenGL 4.5

Memory Bandwidth: Memory bandwidth is the maximum amount of data (counted in megabytes per second) that can be transported over the external memory interface within a second. The number is worked out by multiplying the bus width by its memory clock speed. In the case of DDR memory, the result should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The higher the card's memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and high resolutions.

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

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics card could possibly record to its local memory in one second - measured in millions of pixels per second. The number is calculated by multiplying the number of Raster Operations Pipelines by the the card's clock speed. 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 many other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the ability to reach the maximum fill rate.

Display Prices

Hide Prices

Radeon HD 7950

Amazon.com

Check prices at:

Radeon RX 590

Amazon.com

Check prices at:

Please note that the price comparisons are based on search keywords - sometimes it might show cards with very similar names that are not exactly the same as the one chosen in the comparison. We do try to filter out the wrong results as best we can, though.

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