Radeon HD 5670 vs Radeon HD 6970

Intro

Compare those specs to the Radeon HD 6970, which comes with GPU core speed of 880 MHz, and 2048 MB of GDDR5 RAM set to run at 1375 MHz through a 256-bit bus. It also is comprised of 1536 Stream Processors, 96 TAUs, and 32 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 5670		61 Watts
Radeon HD 6970		250 Watts
	Difference: 189 Watts (310%)

Memory Bandwidth

As far as performance goes, the Radeon HD 6970 should theoretically be a lot superior to the Radeon HD 5670 in general. (explain)

Radeon HD 6970		176000 MB/sec
Radeon HD 5670		64000 MB/sec
	Difference: 112000 (175%)

Texel Rate

The Radeon HD 6970 is quite a bit (more or less 445%) better at texture filtering than the Radeon HD 5670. (explain)

Radeon HD 6970		84480 Mtexels/sec
Radeon HD 5670		15500 Mtexels/sec
	Difference: 68980 (445%)

Pixel Rate

The Radeon HD 6970 will be quite a bit (about 354%) faster with regards to AA than the Radeon HD 5670, and also will be able to handle higher screen resolutions without slowing down too much. (explain)

Radeon HD 6970		28160 Mpixels/sec
Radeon HD 5670		6200 Mpixels/sec
	Difference: 21960 (354%)

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: Bandwidth is the maximum amount of information (counted in MB per second) that can be transferred past the external memory interface in one second. The number is calculated by multiplying the interface width by its memory clock speed. In the case of DDR RAM, it should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The higher the bandwidth is, the faster the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and higher screen resolutions.

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

Pixel Rate: Pixel rate is the maximum number of pixels the graphics card could possibly write to its local memory per second - measured in millions of pixels per second. The number is calculated by multiplying the amount of colour ROPs by the the core 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 fill rate also depends on many other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to get to the maximum fill rate.