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Radeon HD 7950 vs Radeon RX 5500

Intro

The Radeon HD 7950 comes with a clock speed of 800 MHz and a GDDR5 memory speed of 1250 MHz. It also uses a 384-bit memory bus, and uses a 28 nm design. It is made up of 1792 SPUs, 112 Texture Address Units, and 32 ROPs.

Compare those specifications to the Radeon RX 5500, which comes with core speeds of 1670 MHz on the GPU, and 14000 MHz on the 4096 MB of GDDR6 memory. It features 1408 SPUs as well as 88 Texture Address Units and 32 Rasterization Operator 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

The Radeon HD 7950, in theory, should perform just a bit faster than the Radeon RX 5500 overall. (explain)

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

Texel Rate

The Radeon RX 5500 should be quite a bit (approximately 64%) faster with regards to 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 is much (approximately 109%) better at full screen anti-aliasing than the Radeon HD 7950, and also able to handle higher resolutions better. (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 28000 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 largest amount of data (in units of megabytes per second) that can be transported over the external memory interface in a second. It's calculated by multiplying the interface width by its memory clock speed. If it uses DDR memory, it should be multiplied by 2 again. If DDR5, multiply by 4 instead. The better the bandwidth is, the faster the card will be in general. It especially helps with AA, HDR and high resolutions.

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

Pixel Rate: Pixel rate is the maximum amount of pixels the graphics card could possibly write to the local memory in one second - measured in millions of pixels per second. The number is calculated by multiplying the number of colour ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel 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 reach the maximum fill rate.

Display Prices

Hide Prices

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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