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Radeon HD 6950 vs Radeon RX 6500 XT

Intro

The Radeon HD 6950 uses a 40 nm design. AMD has set the core frequency at 800 MHz. The GDDR5 memory works at a speed of 1250 MHz on this particular model. It features 1408 SPUs along with 88 TAUs and 32 Rasterization Operator Units.

Compare those specifications to the Radeon RX 6500 XT, which features GPU core speed of 2200 MHz, and 4096 MB of GDDR6 RAM set to run at 2250 MHz through a 64-bit bus. It also 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 200 Watts
Difference: 93 Watts (87%)

Memory Bandwidth

In theory, the Radeon HD 6950 is 9% faster than the Radeon RX 6500 XT in general, due to its higher bandwidth. (explain)

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

Texel Rate

The Radeon RX 6500 XT will be a lot (approximately 100%) better at texture filtering than the Radeon HD 6950. (explain)

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

Pixel Rate

The Radeon RX 6500 XT should be quite a bit (approximately 175%) better at full screen anti-aliasing than the Radeon HD 6950, and also will be able to handle higher screen resolutions without slowing down too much. (explain)

Radeon RX 6500 XT 70400 Mpixels/sec
Radeon HD 6950 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

Amazon.com

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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.

Specifications

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Model Radeon HD 6950 Radeon RX 6500 XT
Manufacturer AMD AMD
Year December 2010 January 2022
Code Name Cayman Pro Navi 24 XT
Memory 1024 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: Memory bandwidth is the maximum amount of data (counted in MB per second) that can be transferred across the external memory interface in one second. It's calculated by multiplying the card's bus width by its memory clock speed. If the card has DDR RAM, the result should be multiplied by 2 again. If DDR5, multiply by 4 instead. The better the memory bandwidth, the better the card will be in general. It especially helps with AA, HDR and high resolutions.

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

Pixel Rate: Pixel rate is the maximum number of pixels the graphics card could possibly record to the local memory in one second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the number of ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill rate also depends on quite a few other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to get to the maximum fill rate.

Display Prices

Hide Prices

Radeon HD 6950

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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