Radeon HD 5750 1GB vs Radeon HD 6970

Intro

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

Display Graphs

Hide Graphs

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 perform a lot faster than the Radeon HD 5750 1GB overall. (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 a lot (about 235%) more effective at texture filtering 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

If running with a high resolution is important to you, then the Radeon HD 6970 is the winner, and very much so. (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 maximum amount of information (counted in MB per second) that can be transferred past the external memory interface in one second. The number is calculated by multiplying the card's bus width by its memory clock speed. If it uses DDR RAM, the result should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The higher the memory bandwidth, the faster the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

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

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