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Radeon HD 7970 vs Radeon RX 5500

Intro

The Radeon HD 7970 makes use of a 28 nm design. AMD has set the core frequency at 925 MHz. The GDDR5 RAM works at a speed of 1375 MHz on this card. It features 2048 SPUs along with 128 TAUs and 32 ROPs.

Compare all of that to the Radeon RX 5500, which has GPU core speed of 1670 MHz, and 4096 MB of GDDR6 RAM running at 14000 MHz through a 128-bit bus. It also is comprised of 1408 SPUs, 88 TAUs, and 32 Raster Operation Units.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX 5500 150 Watts
Radeon HD 7970 250 Watts
Difference: 100 Watts (67%)

Memory Bandwidth

In theory, the Radeon HD 7970 should perform just a bit faster than the Radeon RX 5500 in general. (explain)

Radeon HD 7970 264000 MB/sec
Radeon RX 5500 229376 MB/sec
Difference: 34624 (15%)

Texel Rate

The Radeon RX 5500 will be quite a bit (about 24%) better at AF than the Radeon HD 7970. (explain)

Radeon RX 5500 146960 Mtexels/sec
Radeon HD 7970 118400 Mtexels/sec
Difference: 28560 (24%)

Pixel Rate

The Radeon RX 5500 should be a lot (approximately 81%) better at anti-aliasing than the Radeon HD 7970, and capable of handling higher resolutions better. (explain)

Radeon RX 5500 53440 Mpixels/sec
Radeon HD 7970 29600 Mpixels/sec
Difference: 23840 (81%)

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 7970

Amazon.com

Check prices at:

Radeon RX 5500

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 7970 Radeon RX 5500
Manufacturer AMD AMD
Year January 2012 October 2019
Code Name Tahiti XT Navi 14 XT
Memory 3072 MB 4096 MB
Core Speed 925 MHz 1670 MHz
Memory Speed 5500 MHz 28000 GB/s
Power (Max TDP) 250 watts 150 watts
Bandwidth 264000 MB/sec 229376 MB/sec
Texel Rate 118400 Mtexels/sec 146960 Mtexels/sec
Pixel Rate 29600 Mpixels/sec 53440 Mpixels/sec
Unified Shaders 2048 1408
Texture Mapping Units 128 88
Render Output Units 32 32
Bus Type GDDR5 GDDR6
Bus Width 384-bit 128-bit
Fab Process 28 nm 7 nm
Transistors 4313 million 6400 million
Bus PCIe 3.0 x16 PCIe 4.0 ×16
DirectX Version DirectX 11.1 DirectX 12
OpenGL Version OpenGL 4.2 OpenGL 4.6

Memory Bandwidth: Bandwidth is the max amount of data (counted in MB per second) that can be transferred past the external memory interface in one second. The number is calculated by multiplying the bus width by the speed of its memory. In the case of DDR type memory, the result should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The higher the bandwidth is, the better 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 can be processed per second. This number is worked out by multiplying the total amount of texture units by the core clock speed of the chip. The higher this number, the better the 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 the local memory in a second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount 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 outputting the pixels (image) to the screen. The actual pixel output rate also depends on lots of other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to get to the maximum fill rate.

Display Prices

Hide Prices

Radeon HD 7970

Amazon.com

Check prices at:

Radeon RX 5500

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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