Radeon HD 5750 1GB vs Radeon HD 6970

Intro

Compare those specs to the Radeon HD 6970, which comes with a clock frequency of 880 MHz and a GDDR5 memory speed of 1375 MHz. It also features a 256-bit bus, and makes use of a 40 nm design. It is made up of 1536 SPUs, 96 TAUs, and 32 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 5750 1GB		86 Watts
Radeon HD 6970		250 Watts
	Difference: 164 Watts (191%)

Memory Bandwidth

In theory, the Radeon HD 6970 should be quite a bit faster than the Radeon HD 5750 1GB in general. (explain)

Radeon HD 6970		176000 MB/sec
Radeon HD 5750 1GB		73600 MB/sec
	Difference: 102400 (139%)

Texel Rate

The Radeon HD 6970 will be a lot (about 235%) faster with regards to AF than the Radeon HD 5750 1GB. (explain)

Radeon HD 6970		84480 Mtexels/sec
Radeon HD 5750 1GB		25200 Mtexels/sec
	Difference: 59280 (235%)

Pixel Rate

The Radeon HD 6970 will be much (approximately 151%) more effective at anti-aliasing than the Radeon HD 5750 1GB, and also capable of handling higher screen resolutions better. (explain)

Radeon HD 6970		28160 Mpixels/sec
Radeon HD 5750 1GB		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 (measured in megabytes per second) that can be transferred over the external memory interface in a second. It is worked out by multiplying the card's bus width by its memory clock speed. If the card has DDR type RAM, the result should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The higher the memory bandwidth, the faster the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.

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

Pixel Rate: Pixel rate is the maximum number of pixels the graphics card can possibly write to its local memory in a second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of ROPs by the the card's 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 output 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.