Radeon HD 5750 1GB vs Radeon HD 6670 (OEM) 1GB

Intro

Compare those specifications to the Radeon HD 6670 (OEM) 1GB, which comes with core clock speeds of 800 MHz on the GPU, and 1000 MHz on the 1024 MB of GDDR5 memory. It features 480 SPUs as well as 24 Texture Address Units and 8 Rasterization Operator Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 6670 (OEM) 1GB		63 Watts
Radeon HD 5750 1GB		86 Watts
	Difference: 23 Watts (37%)

Memory Bandwidth

Theoretically, the Radeon HD 5750 1GB should perform a little bit faster than the Radeon HD 6670 (OEM) 1GB overall. (explain)

Radeon HD 5750 1GB		73600 MB/sec
Radeon HD 6670 (OEM) 1GB		64000 MB/sec
	Difference: 9600 (15%)

Texel Rate

The Radeon HD 5750 1GB should be much (more or less 31%) better at anisotropic filtering than the Radeon HD 6670 (OEM) 1GB. (explain)

Radeon HD 5750 1GB		25200 Mtexels/sec
Radeon HD 6670 (OEM) 1GB		19200 Mtexels/sec
	Difference: 6000 (31%)

Pixel Rate

If using lots of anti-aliasing is important to you, then the Radeon HD 5750 1GB is the winner, by far. (explain)

Radeon HD 5750 1GB		11200 Mpixels/sec
Radeon HD 6670 (OEM) 1GB		6400 Mpixels/sec
	Difference: 4800 (75%)

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 information (counted in megabytes per second) that can be moved across the external memory interface in a second. It's worked out by multiplying the interface width by the speed of its memory. If the card has DDR type memory, it must be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The better the memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, HDR and high resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that are processed per second. This number is calculated by multiplying the total texture units 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 in one second.

Pixel Rate: Pixel rate is the maximum number of pixels the graphics card could possibly record to its local memory in one 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 - aka Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate is also dependant on many other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the ability to get to the max fill rate.