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Radeon HD 7970 vs Radeon RX 5600

Intro

The Radeon HD 7970 has a GPU clock speed of 925 MHz, and the 3072 MB of GDDR5 memory is set to run at 1375 MHz through a 384-bit bus. It also is made up of 2048 Stream Processors, 128 Texture Address Units, and 32 Raster Operation Units.

Compare all of that to the Radeon RX 5600, which uses a 7 nm design. AMD has clocked the core frequency at 1375 MHz. The GDDR6 RAM works at a frequency of 1500 MHz on this particular model. It features 2048 SPUs as well as 128 TAUs and 64 Rasterization Operator Units.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX 5600 150 Watts
Radeon HD 7970 250 Watts
Difference: 100 Watts (67%)

Memory Bandwidth

As far as performance goes, the Radeon RX 5600 should theoretically be a small bit superior to the Radeon HD 7970 in general. (explain)

Radeon RX 5600 294912 MB/sec
Radeon HD 7970 264000 MB/sec
Difference: 30912 (12%)

Texel Rate

The Radeon RX 5600 will be much (more or less 49%) faster with regards to AF than the Radeon HD 7970. (explain)

Radeon RX 5600 176000 Mtexels/sec
Radeon HD 7970 118400 Mtexels/sec
Difference: 57600 (49%)

Pixel Rate

The Radeon RX 5600 should be much (about 197%) faster with regards to FSAA than the Radeon HD 7970, and should be capable of handling higher screen resolutions while still performing well. (explain)

Radeon RX 5600 88000 Mpixels/sec
Radeon HD 7970 29600 Mpixels/sec
Difference: 58400 (197%)

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

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Radeon RX 5600

Amazon.com

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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 5600
Manufacturer AMD AMD
Year January 2012 January 2020
Code Name Tahiti XT Navi 10 XE
Memory 3072 MB 6144 MB
Core Speed 925 MHz 1375 MHz
Memory Speed 5500 MHz 3000 GB/s
Power (Max TDP) 250 watts 150 watts
Bandwidth 264000 MB/sec 294912 MB/sec
Texel Rate 118400 Mtexels/sec 176000 Mtexels/sec
Pixel Rate 29600 Mpixels/sec 88000 Mpixels/sec
Unified Shaders 2048 2048
Texture Mapping Units 128 128
Render Output Units 32 64
Bus Type GDDR5 GDDR6
Bus Width 384-bit 192-bit
Fab Process 28 nm 7 nm
Transistors 4313 million 10300 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: Memory bandwidth is the largest amount of data (measured in MB per second) that can be transferred across the external memory interface in a second. The number is calculated by multiplying the card's interface width by its memory speed. If it uses DDR memory, it must be multiplied by 2 again. If DDR5, multiply by 4 instead. The better 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 are applied per second. This figure is worked out by multiplying the total texture units of the card by the core clock speed of the chip. The higher the texel rate, the better the graphics card will be at 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 write to its local memory in a second - measured in millions of pixels per second. The number is calculated by multiplying the number of ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate is also dependant on lots of other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to reach the max fill rate.

Display Prices

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Radeon HD 7970

Amazon.com

Check prices at:

Radeon RX 5600

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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