GeForce GT 230 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 memory running at 1000 MHz through a 128-bit bus. It also features 480 SPUs, 24 Texture Address Units, and 8 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 6670 (OEM)		63 Watts
GeForce GT 230		65 Watts
	Difference: 2 Watts (3%)

Memory Bandwidth

The Radeon HD 6670 (OEM), in theory, should be a lot faster than the GeForce GT 230 in general. (explain)

Radeon HD 6670 (OEM)		64000 MB/sec
GeForce GT 230		38400 MB/sec
	Difference: 25600 (67%)

Texel Rate

The Radeon HD 6670 (OEM) will be quite a bit (more or less 118%) faster with regards to anisotropic filtering than the GeForce GT 230. (explain)

Radeon HD 6670 (OEM)		19200 Mtexels/sec
GeForce GT 230		8800 Mtexels/sec
	Difference: 10400 (118%)

Pixel Rate

If using high levels of AA is important to you, then the Radeon HD 6670 (OEM) is superior to the GeForce GT 230, and very much so. (explain)

Radeon HD 6670 (OEM)		6400 Mpixels/sec
GeForce GT 230		4400 Mpixels/sec
	Difference: 2000 (45%)

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 (measured in MB per second) that can be transferred past the external memory interface within a second. It is calculated by multiplying the bus width by its memory speed. If the card has DDR type 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 anti-aliasing, HDR and high resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that can be processed in one second. This is worked out by multiplying the total texture units of the card by the core speed of the chip. The better the texel rate, the better the graphics 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 amount of pixels the graphics card could possibly record to its local memory in one second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the amount of ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill rate is also dependant on lots of other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the potential to reach the maximum fill rate.