GeForce GTX 260 216SP 55 nm vs Radeon HD 6670 (OEM)

Intro

Compare those specs to the Radeon HD 6670 (OEM), which features a GPU core clock speed of 800 MHz, and 512 MB of GDDR5 RAM set to run at 1000 MHz through a 128-bit bus. It also features 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)		63 Watts
GeForce GTX 260 216SP 55 nm		171 Watts
	Difference: 108 Watts (171%)

Memory Bandwidth

As far as performance goes, the GeForce GTX 260 216SP 55 nm should theoretically be quite a bit superior to the Radeon HD 6670 (OEM) overall. (explain)

GeForce GTX 260 216SP 55 nm		111888 MB/sec
Radeon HD 6670 (OEM)		64000 MB/sec
	Difference: 47888 (75%)

Texel Rate

The GeForce GTX 260 216SP 55 nm should be quite a bit (about 116%) better at anisotropic filtering than the Radeon HD 6670 (OEM). (explain)

GeForce GTX 260 216SP 55 nm		41472 Mtexels/sec
Radeon HD 6670 (OEM)		19200 Mtexels/sec
	Difference: 22272 (116%)

Pixel Rate

If running with lots of anti-aliasing is important to you, then the GeForce GTX 260 216SP 55 nm is a better choice, by a large margin. (explain)

GeForce GTX 260 216SP 55 nm		16128 Mpixels/sec
Radeon HD 6670 (OEM)		6400 Mpixels/sec
	Difference: 9728 (152%)

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 data (in units of megabytes per second) that can be moved past the external memory interface in one second. The number is worked out by multiplying the card's bus width by its memory clock speed. If it uses DDR RAM, the result should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The better the memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and high resolutions.

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

Pixel Rate: Pixel rate is the maximum number of pixels the video card could possibly record to its local memory per second - measured in millions of pixels per second. The number is worked out by multiplying the amount of Render Output Units by the the core clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for outputting the pixels (image) to 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 reach the max fill rate.