Radeon HD 6750 vs Radeon HD 6970

Intro

Compare all of that to the Radeon HD 6970, which features 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 Texture Address Units and 32 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 6750		86 Watts
Radeon HD 6970		250 Watts
	Difference: 164 Watts (191%)

Memory Bandwidth

As far as performance goes, the Radeon HD 6970 should theoretically be much better than the Radeon HD 6750 in general. (explain)

Radeon HD 6970		176000 MB/sec
Radeon HD 6750		64000 MB/sec
	Difference: 112000 (175%)

Texel Rate

The Radeon HD 6970 should be much (approximately 224%) better at AF than the Radeon HD 6750. (explain)

Radeon HD 6970		84480 Mtexels/sec
Radeon HD 6750		26100 Mtexels/sec
	Difference: 58380 (224%)

Pixel Rate

The Radeon HD 6970 will be quite a bit (about 143%) better at full screen anti-aliasing than the Radeon HD 6750, and will be capable of handling higher resolutions better. (explain)

Radeon HD 6970		28160 Mpixels/sec
Radeon HD 6750		11600 Mpixels/sec
	Difference: 16560 (143%)

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 largest amount of data (in units of megabytes per second) that can be transferred past the external memory interface in one second. The number is worked out by multiplying the card's interface width by its memory clock speed. If the card has DDR RAM, it must 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 anti-aliasing, HDR and higher screen resolutions.

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

Pixel Rate: Pixel rate is the maximum amount of pixels the graphics card can possibly record to the local memory per second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the number of colour ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel output rate also depends on lots of other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the ability to get to the maximum fill rate.