Radeon HD 5750 1GB vs Radeon HD 6950

Intro

Compare those specifications to the Radeon HD 6950, which comes with clock speeds of 800 MHz on the GPU, and 1250 MHz on the 1024 MB of GDDR5 memory. It features 1408 SPUs along with 88 TAUs and 32 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 5750 1GB		86 Watts
Radeon HD 6950		200 Watts
	Difference: 114 Watts (133%)

Memory Bandwidth

Theoretically speaking, the Radeon HD 6950 should be 117% quicker than the Radeon HD 5750 1GB in general, because of its greater bandwidth. (explain)

Radeon HD 6950		160000 MB/sec
Radeon HD 5750 1GB		73600 MB/sec
	Difference: 86400 (117%)

Texel Rate

The Radeon HD 6950 is quite a bit (about 179%) faster with regards to texture filtering than the Radeon HD 5750 1GB. (explain)

Radeon HD 6950		70400 Mtexels/sec
Radeon HD 5750 1GB		25200 Mtexels/sec
	Difference: 45200 (179%)

Pixel Rate

If using lots of anti-aliasing is important to you, then the Radeon HD 6950 is superior to the Radeon HD 5750 1GB, by far. (explain)

Radeon HD 6950		25600 Mpixels/sec
Radeon HD 5750 1GB		11200 Mpixels/sec
	Difference: 14400 (129%)

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 information (counted in megabytes per second) that can be transferred past the external memory interface within a second. The number is calculated by multiplying the bus width by its memory clock speed. In the case of DDR RAM, the result should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The higher the card's memory bandwidth, the better 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 number of texture map elements (texels) that are processed per second. This figure is calculated by multiplying the total number of texture units of the card by the core speed of the chip. The better this number, the better the video card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in a second.

Pixel Rate: Pixel rate is the maximum amount of pixels the graphics card could possibly record to the local memory per second - measured in millions of pixels per second. The figure is calculated by multiplying the number of colour ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate is also dependant on quite a few other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the potential to reach the maximum fill rate.