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Radeon HD 7950 3GB vs Radeon RX 5500 XT

Intro

The Radeon HD 7950 3GB has a GPU core clock speed of 800 MHz, and the 3072 MB of GDDR5 memory runs at 1250 MHz through a 384-bit bus. It also features 1792 Stream Processors, 112 Texture Address Units, and 32 ROPs.

Compare those specs 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 is set to run at a frequency of 1750 MHz on this specific model. It features 1408 SPUs along with 88 Texture Address Units and 32 ROPs.

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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

Theoretically, the Radeon HD 7950 3GB should perform a bit faster 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 will be quite a bit (about 69%) more effective at AF 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

The Radeon RX 5500 XT should be quite a bit (about 115%) more effective at FSAA than the Radeon HD 7950 3GB, and will be capable of handling higher screen resolutions without losing too much performance. (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 3500 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: Bandwidth is the maximum amount of information (counted in megabytes per second) that can be transported across the external memory interface in one second. The number is worked out by multiplying the interface width by its memory clock speed. If the card has DDR RAM, it should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The higher the bandwidth is, the better the card will be in general. It especially helps with AA, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that are applied in one second. This figure is worked out by multiplying the total number of texture units by the core speed of the chip. The better this number, the better the 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 most pixels that the graphics chip 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 Raster Operations Pipelines 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 many other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the potential to reach the max 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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