GeForce GT 230 vs GeForce GTX 470

Intro

Compare that to the GeForce GTX 470, which features GPU core speed of 607 MHz, and 1280 MB of GDDR5 memory set to run at 837 MHz through a 320-bit bus. It also is comprised of 448 Stream Processors, 56 Texture Address Units, and 40 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 230		65 Watts
GeForce GTX 470		215 Watts
	Difference: 150 Watts (231%)

Memory Bandwidth

Theoretically speaking, the GeForce GTX 470 should be a lot faster than the GeForce GT 230 in general. (explain)

GeForce GTX 470		133920 MB/sec
GeForce GT 230		38400 MB/sec
	Difference: 95520 (249%)

Texel Rate

The GeForce GTX 470 will be much (approximately 286%) better at anisotropic filtering than the GeForce GT 230. (explain)

GeForce GTX 470		33992 Mtexels/sec
GeForce GT 230		8800 Mtexels/sec
	Difference: 25192 (286%)

Pixel Rate

If using a high screen resolution is important to you, then the GeForce GTX 470 is superior to the GeForce GT 230, by far. (explain)

GeForce GTX 470		24280 Mpixels/sec
GeForce GT 230		4400 Mpixels/sec
	Difference: 19880 (452%)

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 (measured in MB per second) that can be moved across the external memory interface within a second. The number is worked out by multiplying the interface width by its memory clock speed. In the case of DDR type RAM, it must be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The higher the bandwidth is, 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 amount of texture map elements (texels) that are 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 higher the texel rate, the better the card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied per second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics chip could possibly write to the local memory in a second - measured in millions of pixels per second. The number is calculated by multiplying the number of Render Output Units by the the card's clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate is also dependant on many other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the ability to reach the maximum fill rate.