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Radeon HD 6950 vs Radeon RX 6500 XT

Intro

The Radeon HD 6950 makes use of a 40 nm design. AMD has clocked the core speed at 800 MHz. The GDDR5 RAM runs at a frequency of 1250 MHz on this model. It features 1408 SPUs as well as 88 Texture Address Units and 32 ROPs.

Compare that to the Radeon RX 6500 XT, which uses a 6 nm design. AMD has set the core frequency at 2200 MHz. The GDDR6 RAM works at a frequency of 2250 MHz on this card. It features 1024 SPUs as well as 64 TAUs and 32 ROPs.

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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

As far as performance goes, the Radeon HD 6950 should theoretically be a bit better than the Radeon RX 6500 XT in general. (explain)

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

Texel Rate

The Radeon RX 6500 XT is much (about 100%) faster with regards to AF than the Radeon HD 6950. (explain)

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

Pixel Rate

If running with high levels of AA is important to you, then the Radeon RX 6500 XT is the winner, and very much so. (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 max amount of data (counted in megabytes per second) that can be transferred past the external memory interface in one second. It's calculated by multiplying the bus width by its memory speed. If it uses DDR type RAM, the result should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The higher the memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, HDR and high resolutions.

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

Pixel Rate: Pixel rate is the most pixels that the graphics chip could possibly write to the local memory in a second - measured in millions of pixels per second. The number is worked out by multiplying the number of Raster Operations Pipelines by the the core 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 is also dependant on many other factors, most notably the memory bandwidth of the card - the lower the 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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