GeForce 8800 GT 512MB vs GeForce GT 230

Intro

Compare those specs to the GeForce GT 230, which comes with a core clock frequency of 550 MHz and a DDR3 memory frequency of 800 MHz. It also makes use of a 192-bit memory bus, and makes use of a 40 nm design. It is made up of 32 SPUs, 16 TAUs, and 8 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 230		65 Watts
GeForce 8800 GT 512MB		105 Watts
	Difference: 40 Watts (62%)

Memory Bandwidth

The GeForce 8800 GT 512MB should in theory be quite a bit faster than the GeForce GT 230 overall. (explain)

GeForce 8800 GT 512MB		57600 MB/sec
GeForce GT 230		38400 MB/sec
	Difference: 19200 (50%)

Texel Rate

The GeForce 8800 GT 512MB is much (about 282%) faster with regards to AF than the GeForce GT 230. (explain)

GeForce 8800 GT 512MB		33600 Mtexels/sec
GeForce GT 230		8800 Mtexels/sec
	Difference: 24800 (282%)

Pixel Rate

The GeForce 8800 GT 512MB is much (approximately 118%) faster with regards to full screen anti-aliasing than the GeForce GT 230, and also capable of handling higher screen resolutions while still performing well. (explain)

GeForce 8800 GT 512MB		9600 Mpixels/sec
GeForce GT 230		4400 Mpixels/sec
	Difference: 5200 (118%)

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 largest amount of data (counted in megabytes per second) that can be moved over the external memory interface in one second. It's worked out by multiplying the interface width by its memory speed. If it uses DDR RAM, it should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The higher the memory bandwidth, the faster the card will be in general. It especially helps with AA, HDR and high resolutions.

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

Pixel Rate: Pixel rate is the most pixels the video card can possibly record to the local memory in one second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of colour ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel output rate is also dependant on quite a few other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to get to the max fill rate.