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Radeon HD 6950 2GB vs Radeon RX 6500 XT

Intro

The Radeon HD 6950 2GB has a clock frequency of 800 MHz and a GDDR5 memory speed of 1250 MHz. It also makes use of a 256-bit memory bus, and makes use of a 40 nm design. It is comprised of 1408 SPUs, 88 Texture Address Units, and 32 ROPs.

Compare those specs to the Radeon RX 6500 XT, which comes with a core clock speed of 2200 MHz and a GDDR6 memory frequency of 2250 MHz. It also uses a 64-bit memory bus, and uses a 6 nm design. It is made up of 1024 SPUs, 64 TAUs, and 32 Raster Operation Units.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX 6500 XT 107 Watts
Radeon HD 6950 2GB 200 Watts
Difference: 93 Watts (87%)

Memory Bandwidth

In theory, the Radeon HD 6950 2GB will be 9% faster than the Radeon RX 6500 XT in general, because of its higher data rate. (explain)

Radeon HD 6950 2GB 160000 MB/sec
Radeon RX 6500 XT 147456 MB/sec
Difference: 12544 (9%)

Texel Rate

The Radeon RX 6500 XT is quite a bit (more or less 100%) more effective at anisotropic filtering than the Radeon HD 6950 2GB. (explain)

Radeon RX 6500 XT 140800 Mtexels/sec
Radeon HD 6950 2GB 70400 Mtexels/sec
Difference: 70400 (100%)

Pixel Rate

If running with a high screen resolution is important to you, then the Radeon RX 6500 XT is a better choice, by a large margin. (explain)

Radeon RX 6500 XT 70400 Mpixels/sec
Radeon HD 6950 2GB 25600 Mpixels/sec
Difference: 44800 (175%)

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 6950 2GB

Amazon.com

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Radeon RX 6500 XT

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 6950 2GB Radeon RX 6500 XT
Manufacturer AMD AMD
Year December 2010 January 2022
Code Name Cayman Pro Navi 24 XT
Memory 2048 MB 4096 MB
Core Speed 800 MHz 2200 MHz
Memory Speed 5000 MHz 4500 GB/s
Power (Max TDP) 200 watts 107 watts
Bandwidth 160000 MB/sec 147456 MB/sec
Texel Rate 70400 Mtexels/sec 140800 Mtexels/sec
Pixel Rate 25600 Mpixels/sec 70400 Mpixels/sec
Unified Shaders 1408 1024
Texture Mapping Units 88 64
Render Output Units 32 32
Bus Type GDDR5 GDDR6
Bus Width 256-bit 64-bit
Fab Process 40 nm 6 nm
Transistors 2640 million 5400 million
Bus PCIe x16 PCIe 4.0 x16
DirectX Version DirectX 11 DirectX 12
OpenGL Version OpenGL 4.1 OpenGL 4.6

Memory Bandwidth: Bandwidth is the max amount of information (in units of megabytes per second) that can be transferred across the external memory interface in a second. It's calculated by multiplying the card's bus width by its memory clock speed. If it uses DDR memory, it must be multiplied by 2 once again. If DDR5, multiply by 4 instead. The better the memory bandwidth, 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 in one second. This number is worked out by multiplying the total texture units 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 processed in one second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics card could possibly write to its local memory per second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the number of Render Output Units by the the card's clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel output rate also depends on lots of other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to reach the maximum fill rate.

Display Prices

Hide Prices

Radeon HD 6950 2GB

Amazon.com

Check prices at:

Radeon RX 6500 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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