Radeon HD 5830 vs Radeon HD 6670 (OEM) 1GB

Intro

Compare all that to the Radeon HD 6670 (OEM) 1GB, which has a core clock frequency of 800 MHz and a GDDR5 memory speed of 1000 MHz. It also uses a 128-bit bus, and makes use of a 40 nm design. It is made up of 480 SPUs, 24 Texture Address Units, and 8 Raster Operation 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 5830		175 Watts
	Difference: 112 Watts (178%)

Memory Bandwidth

Theoretically speaking, the Radeon HD 5830 is 100% faster than the Radeon HD 6670 (OEM) 1GB in general, due to its higher data rate. (explain)

Radeon HD 5830		128000 MB/sec
Radeon HD 6670 (OEM) 1GB		64000 MB/sec
	Difference: 64000 (100%)

Texel Rate

The Radeon HD 5830 should be a lot (approximately 133%) better at anisotropic filtering than the Radeon HD 6670 (OEM) 1GB. (explain)

Radeon HD 5830		44800 Mtexels/sec
Radeon HD 6670 (OEM) 1GB		19200 Mtexels/sec
	Difference: 25600 (133%)

Pixel Rate

The Radeon HD 5830 will be much (more or less 100%) faster with regards to anti-aliasing than the Radeon HD 6670 (OEM) 1GB, and capable of handling higher screen resolutions more effectively. (explain)

Radeon HD 5830		12800 Mpixels/sec
Radeon HD 6670 (OEM) 1GB		6400 Mpixels/sec
	Difference: 6400 (100%)

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 (counted in megabytes per second) that can be transported past the external memory interface in a second. The number is worked out by multiplying the interface width by its memory clock speed. If it uses DDR type RAM, it should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The better the bandwidth is, 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 number of texture map elements (texels) that are processed in one second. This number is calculated by multiplying the total amount of texture units of the card by the core clock speed of the chip. The better this number, the better the card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in one second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics chip can possibly record to its local memory per second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount of Render Output Units by the the core speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill rate also depends on many other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to reach the max fill rate.