Radeon HD 5750 512MB vs Radeon HD 6950

Intro

Compare those specifications to the Radeon HD 6950, which has core speeds of 800 MHz on the GPU, and 1250 MHz on the 1024 MB of GDDR5 RAM. It features 1408 SPUs as well as 88 TAUs and 32 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 5750 512MB		86 Watts
Radeon HD 6950		200 Watts
	Difference: 114 Watts (133%)

Memory Bandwidth

The Radeon HD 6950 should in theory be quite a bit faster than the Radeon HD 5750 512MB overall. (explain)

Radeon HD 6950		160000 MB/sec
Radeon HD 5750 512MB		73600 MB/sec
	Difference: 86400 (117%)

Texel Rate

The Radeon HD 6950 should be much (more or less 179%) more effective at texture filtering than the Radeon HD 5750 512MB. (explain)

Radeon HD 6950		70400 Mtexels/sec
Radeon HD 5750 512MB		25200 Mtexels/sec
	Difference: 45200 (179%)

Pixel Rate

The Radeon HD 6950 is much (more or less 129%) better at FSAA than the Radeon HD 5750 512MB, and also will be able to handle higher screen resolutions better. (explain)

Radeon HD 6950		25600 Mpixels/sec
Radeon HD 5750 512MB		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 max amount of data (in units of MB per second) that can be transported across the external memory interface within a second. It is calculated by multiplying the bus width by its memory speed. In the case of DDR type memory, the result should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The higher the card's memory bandwidth, the faster the card will be in general. It especially helps with AA, HDR and high resolutions.

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

Pixel Rate: Pixel rate is the maximum number of pixels the video card could possibly write to its local memory per second - measured in millions of pixels per second. The figure is worked out by multiplying the number of colour ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel output rate also depends on quite a few other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the potential to reach the max fill rate.