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Radeon HD 6950 2GB vs Radeon RX 460 2GB

Intro

The Radeon HD 6950 2GB has a GPU core clock speed of 800 MHz, and the 2048 MB of GDDR5 RAM is set to run at 1250 MHz through a 256-bit bus. It also features 1408 SPUs, 88 Texture Address Units, and 32 ROPs.

Compare all that to the Radeon RX 460 2GB, which has clock speeds of 1090 MHz on the GPU, and 1750 MHz on the 2048 MB of GDDR5 RAM. It features 896 SPUs along with 56 TAUs and 16 ROPs.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX 460 2GB 75 Watts
Radeon HD 6950 2GB 200 Watts
Difference: 125 Watts (167%)

Memory Bandwidth

Theoretically speaking, the Radeon HD 6950 2GB should be 43% faster than the Radeon RX 460 2GB in general, due to its greater data rate. (explain)

Radeon HD 6950 2GB 160000 MB/sec
Radeon RX 460 2GB 112000 MB/sec
Difference: 48000 (43%)

Texel Rate

The Radeon HD 6950 2GB is just a bit (more or less 15%) more effective at texture filtering than the Radeon RX 460 2GB. (explain)

Radeon HD 6950 2GB 70400 Mtexels/sec
Radeon RX 460 2GB 61040 Mtexels/sec
Difference: 9360 (15%)

Pixel Rate

The Radeon HD 6950 2GB should be a lot (about 47%) more effective at full screen anti-aliasing than the Radeon RX 460 2GB, and should be able to handle higher screen resolutions without losing too much performance. (explain)

Radeon HD 6950 2GB 25600 Mpixels/sec
Radeon RX 460 2GB 17440 Mpixels/sec
Difference: 8160 (47%)

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

Check prices at:

Radeon RX 460 2GB

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 2GB Radeon RX 460 2GB
Manufacturer AMD AMD
Year December 2010 August 2016
Code Name Cayman Pro Polaris 11
Memory 2048 MB 2048 MB
Core Speed 800 MHz 1090 MHz
Memory Speed 5000 MHz 7000 MHz
Power (Max TDP) 200 watts 75 watts
Bandwidth 160000 MB/sec 112000 MB/sec
Texel Rate 70400 Mtexels/sec 61040 Mtexels/sec
Pixel Rate 25600 Mpixels/sec 17440 Mpixels/sec
Unified Shaders 1408 896
Texture Mapping Units 88 56
Render Output Units 32 16
Bus Type GDDR5 GDDR5
Bus Width 256-bit 128-bit
Fab Process 40 nm 14 nm
Transistors 2640 million 3000 million
Bus PCIe x16 PCIe 3.0 x16
DirectX Version DirectX 11 DirectX 12.0
OpenGL Version OpenGL 4.1 OpenGL 4.5

Memory Bandwidth: Memory bandwidth is the largest amount of data (measured in megabytes per second) that can be transported past the external memory interface in a second. The number is worked out by multiplying the bus width by the speed of its memory. In the case of DDR type RAM, it must be multiplied by 2 again. If DDR5, multiply by 4 instead. The better the card's memory bandwidth, the faster 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 processed in one second. This figure is calculated by multiplying the total texture units by the core speed of the chip. The higher the texel rate, the better the card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in a second.

Pixel Rate: Pixel rate is the maximum number of pixels the video card could possibly write to the local memory in a second - measured in millions of pixels per second. The figure is worked out by multiplying the number of colour ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel output rate is also dependant on lots of other factors, most notably the memory bandwidth - 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 460 2GB

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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