Radeon HD 6950 vs Radeon RX 560

Intro

Compare those specifications to the Radeon RX 560, which makes use of a 14 nm design. AMD has set the core frequency at 1175 MHz. The GDDR5 memory is set to run at a speed of 1750 MHz on this model. It features 1024 SPUs as well as 64 Texture Address Units and 16 Rasterization Operator Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX 560		80 Watts
Radeon HD 6950		200 Watts
	Difference: 120 Watts (150%)

Memory Bandwidth

Theoretically speaking, the Radeon HD 6950 should be 40% quicker than the Radeon RX 560 overall, due to its greater data rate. (explain)

Radeon HD 6950		160000 MB/sec
Radeon RX 560		114688 MB/sec
	Difference: 45312 (40%)

Texel Rate

The Radeon RX 560 should be a bit (approximately 7%) better at anisotropic filtering than the Radeon HD 6950. (explain)

Radeon RX 560		75200 Mtexels/sec
Radeon HD 6950		70400 Mtexels/sec
	Difference: 4800 (7%)

Pixel Rate

The Radeon HD 6950 will be quite a bit (about 36%) better at anti-aliasing than the Radeon RX 560, and also capable of handling higher screen resolutions without slowing down too much. (explain)

Radeon HD 6950		25600 Mpixels/sec
Radeon RX 560		18800 Mpixels/sec
	Difference: 6800 (36%)

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

Specifications

Memory Bandwidth: Memory bandwidth is the maximum amount of data (measured in MB per second) that can be transferred over the external memory interface within a second. The number is calculated by multiplying the interface width by the speed of its memory. If it uses DDR RAM, it should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The better the card's 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 texture map elements (texels) that can be applied per second. This number is calculated by multiplying the total amount of texture units of the card by the core clock speed of the chip. The higher this number, the better the video card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels in a second.

Pixel Rate: Pixel rate is the most pixels that the graphics card could possibly record to the local memory in a second - measured in millions of pixels per second. Pixel rate is calculated 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 outputting the pixels (image) to the screen. The actual pixel fill rate is also dependant on lots of other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to get to the maximum fill rate.