GeForce GT 230 vs GeForce GTX 480

Intro

Compare those specs to the GeForce GTX 480, which makes use of a 40 nm design. nVidia has set the core speed at 700 MHz. The GDDR5 memory runs at a frequency of 924 MHz on this model. It features 480 SPUs along with 60 Texture Address Units and 48 Rasterization Operator Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 230		65 Watts
GeForce GTX 480		250 Watts
	Difference: 185 Watts (285%)

Memory Bandwidth

The GeForce GTX 480 should theoretically be much faster than the GeForce GT 230 in general. (explain)

GeForce GTX 480		177408 MB/sec
GeForce GT 230		38400 MB/sec
	Difference: 139008 (362%)

Texel Rate

The GeForce GTX 480 should be quite a bit (more or less 377%) better at AF than the GeForce GT 230. (explain)

GeForce GTX 480		42000 Mtexels/sec
GeForce GT 230		8800 Mtexels/sec
	Difference: 33200 (377%)

Pixel Rate

The GeForce GTX 480 will be much (approximately 664%) better at FSAA than the GeForce GT 230, and also should be able to handle higher screen resolutions better. (explain)

GeForce GTX 480		33600 Mpixels/sec
GeForce GT 230		4400 Mpixels/sec
	Difference: 29200 (664%)

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 max amount of data (counted in MB per second) that can be transported over the external memory interface within a second. The number is calculated by multiplying the card's interface width by its memory speed. If it uses DDR type memory, the result should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The better the bandwidth is, the faster the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and higher screen resolutions.

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

Pixel Rate: Pixel rate is the most pixels the graphics card could possibly write to the local memory per second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the number of ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel rate also depends on lots of other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the ability to reach the max fill rate.