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Radeon HD 7950 vs Radeon RX 5500

Intro

The Radeon HD 7950 comes with a GPU core speed of 800 MHz, and the 1536 MB of GDDR5 memory is set to run at 1250 MHz through a 384-bit bus. It also is comprised of 1792 Stream Processors, 112 Texture Address Units, and 32 Raster Operation Units.

Compare those specifications to the Radeon RX 5500, which has GPU clock speed of 1670 MHz, and 4096 MB of GDDR6 memory running at 1750 MHz through a 128-bit bus. It also features 1408 Stream Processors, 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 7950 200 Watts
Difference: 50 Watts (33%)

Memory Bandwidth

Performance-wise, the Radeon HD 7950 should theoretically be a little bit superior to the Radeon RX 5500 in general. (explain)

Radeon HD 7950 240000 MB/sec
Radeon RX 5500 229376 MB/sec
Difference: 10624 (5%)

Texel Rate

The Radeon RX 5500 is a lot (approximately 64%) better at AF than the Radeon HD 7950. (explain)

Radeon RX 5500 146960 Mtexels/sec
Radeon HD 7950 89600 Mtexels/sec
Difference: 57360 (64%)

Pixel Rate

The Radeon RX 5500 should be a lot (approximately 109%) more effective at anti-aliasing than the Radeon HD 7950, and also should be able to handle higher screen resolutions without losing too much performance. (explain)

Radeon RX 5500 53440 Mpixels/sec
Radeon HD 7950 25600 Mpixels/sec
Difference: 27840 (109%)

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 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 7950 Radeon RX 5500
Manufacturer AMD AMD
Year January 2012 October 2019
Code Name Tahiti Pro Navi 14 XT
Memory 1536 MB 4096 MB
Core Speed 800 MHz 1670 MHz
Memory Speed 5000 MHz 3500 GB/s
Power (Max TDP) 200 watts 150 watts
Bandwidth 240000 MB/sec 229376 MB/sec
Texel Rate 89600 Mtexels/sec 146960 Mtexels/sec
Pixel Rate 25600 Mpixels/sec 53440 Mpixels/sec
Unified Shaders 1792 1408
Texture Mapping Units 112 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: Memory bandwidth is the maximum amount of data (measured in megabytes per second) that can be transferred across the external memory interface within a second. The number is worked out by multiplying the interface width by the speed of its memory. In the case of DDR type memory, the result should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The higher the memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that are processed per second. This is calculated by multiplying the total texture units of the card by the core clock speed of the chip. The better the texel rate, the better the graphics card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied per second.

Pixel Rate: Pixel rate is the most pixels the video card can possibly write to the local memory in a second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of colour ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate is also dependant 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.

Display Prices

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Radeon HD 7950

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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