Radeon HD 5750 1GB vs Radeon HD 6970

Intro

Compare those specifications to the Radeon HD 6970, which uses a 40 nm design. AMD has clocked the core frequency at 880 MHz. The GDDR5 memory runs at a frequency of 1375 MHz on this model. It features 1536 SPUs along with 96 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 6970		250 Watts
	Difference: 164 Watts (191%)

Memory Bandwidth

The Radeon HD 6970 should in theory be much 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 should be much (approximately 235%) better at 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 should be much (about 151%) faster with regards to full screen anti-aliasing than the Radeon HD 5750 1GB, and able to handle higher screen resolutions while still performing well. (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: Bandwidth is the maximum amount of data (in units of megabytes per second) that can be moved past the external memory interface within a second. It is worked out by multiplying the interface width by the speed of its memory. If the card has DDR type memory, it should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The better the card's 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 number of texture map elements (texels) that are applied per second. This is calculated by multiplying the total texture units of the card by the core clock 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 processed in a second.

Pixel Rate: Pixel rate is the most pixels that the graphics chip could possibly write to its local memory per second - measured in millions of pixels per second. The number is worked out 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 get to the maximum fill rate.