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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 set the core speed at 800 MHz. The GDDR5 memory works at a speed of 1250 MHz on this model. It features 1792 SPUs along with 112 TAUs and 32 ROPs.

Compare those specifications to the Radeon RX 590, which uses a 12 nm design. AMD has set the core speed at 1469 MHz. The GDDR5 RAM runs at a frequency of 2000 MHz on this card. It features 2304 SPUs as well as 144 Texture Address Units and 32 ROPs.

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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 speaking, the Radeon RX 590 should perform a little 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 should be a lot (about 136%) more effective at 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 should be much (about 84%) faster with regards to FSAA than the Radeon HD 7950, and also capable of handling higher resolutions better. (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: Bandwidth is the max amount of data (counted in megabytes per second) that can be transferred over the external memory interface within a second. It is worked out by multiplying the interface width by its memory speed. If it uses DDR memory, it must be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The higher the bandwidth is, the better 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 number of texture map elements (texels) that can be processed per second. This is worked out by multiplying the total texture units by the core speed of the chip. The higher the texel rate, the better the graphics 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 maximum amount of pixels the video card could possibly write to its local memory per second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the amount of ROPs 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 of the card - the lower the bandwidth is, the lower the potential to get to the max fill rate.

Display Prices

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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.

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