Radeon HD 5750 512MB vs Radeon HD 6970

Intro

Compare those specs to the Radeon HD 6970, which has core clock speeds of 880 MHz on the GPU, and 1375 MHz on the 2048 MB of GDDR5 RAM. It features 1536 SPUs along with 96 TAUs and 32 Rasterization Operator Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 5750 512MB		86 Watts
Radeon HD 6970		250 Watts
	Difference: 164 Watts (191%)

Memory Bandwidth

The Radeon HD 6970 should theoretically perform quite a bit faster than the Radeon HD 5750 512MB overall. (explain)

Radeon HD 6970		176000 MB/sec
Radeon HD 5750 512MB		73600 MB/sec
	Difference: 102400 (139%)

Texel Rate

The Radeon HD 6970 is much (about 235%) better at anisotropic filtering than the Radeon HD 5750 512MB. (explain)

Radeon HD 6970		84480 Mtexels/sec
Radeon HD 5750 512MB		25200 Mtexels/sec
	Difference: 59280 (235%)

Pixel Rate

If using a high resolution is important to you, then the Radeon HD 6970 is the winner, and very much so. (explain)

Radeon HD 6970		28160 Mpixels/sec
Radeon HD 5750 512MB		11200 Mpixels/sec
	Difference: 16960 (151%)

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 largest amount of data (counted in MB per second) that can be moved past the external memory interface within a second. It's calculated by multiplying the card's interface width by its memory speed. If it uses DDR type memory, it must be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The better the card's memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

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

Pixel Rate: Pixel rate is the maximum number of pixels the graphics card could possibly record to the local memory in a second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate is also dependant on many other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the potential to get to the maximum fill rate.