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Radeon HD 7950 3GB vs Radeon RX 5500 XT

Intro

The Radeon HD 7950 3GB features a clock speed of 800 MHz and a GDDR5 memory speed of 1250 MHz. It also makes use of a 384-bit memory bus, and makes use of a 28 nm design. It features 1792 SPUs, 112 TAUs, and 32 ROPs.

Compare those specifications to the Radeon RX 5500 XT, which makes use of a 7 nm design. AMD has clocked the core frequency at 1717 MHz. The GDDR6 RAM works at a frequency of 14000 MHz on this specific card. 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 XT 130 Watts
Radeon HD 7950 3GB 200 Watts
Difference: 70 Watts (54%)

Memory Bandwidth

As far as performance goes, the Radeon HD 7950 3GB should theoretically be just a bit better than the Radeon RX 5500 XT overall. (explain)

Radeon HD 7950 3GB 240000 MB/sec
Radeon RX 5500 XT 229376 MB/sec
Difference: 10624 (5%)

Texel Rate

The Radeon RX 5500 XT is a lot (about 69%) faster with regards to anisotropic filtering than the Radeon HD 7950 3GB. (explain)

Radeon RX 5500 XT 151096 Mtexels/sec
Radeon HD 7950 3GB 89600 Mtexels/sec
Difference: 61496 (69%)

Pixel Rate

If running with a high resolution is important to you, then the Radeon RX 5500 XT is a better choice, by a large margin. (explain)

Radeon RX 5500 XT 54944 Mpixels/sec
Radeon HD 7950 3GB 25600 Mpixels/sec
Difference: 29344 (115%)

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 3GB

Amazon.com

Check prices at:

Radeon RX 5500 XT

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 3GB Radeon RX 5500 XT
Manufacturer AMD AMD
Year January 2012 December 2019
Code Name Tahiti Pro Navi 14 XTX
Memory 3072 MB 8192 MB
Core Speed 800 MHz 1717 MHz
Memory Speed 5000 MHz 28000 GB/s
Power (Max TDP) 200 watts 130 watts
Bandwidth 240000 MB/sec 229376 MB/sec
Texel Rate 89600 Mtexels/sec 151096 Mtexels/sec
Pixel Rate 25600 Mpixels/sec 54944 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 (counted in megabytes per second) that can be transferred across the external memory interface in a second. It is worked out by multiplying the bus width by its memory clock speed. If it uses DDR type RAM, it must be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The higher the bandwidth is, the faster the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

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

Pixel Rate: Pixel rate is the most pixels the graphics card can possibly write to its local memory per second - measured in millions of pixels per second. The figure is worked out by multiplying the number of 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 fill rate is also dependant on lots of other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to reach the maximum fill rate.

Display Prices

Hide Prices

Radeon HD 7950 3GB

Amazon.com

Check prices at:

Radeon RX 5500 XT

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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