GeForce GT 230 vs GeForce GTX 460

Intro

Compare those specs to the GeForce GTX 460, which features a core clock speed of 675 MHz and a GDDR5 memory speed of 900 MHz. It also uses a 192-bit bus, and uses a 40 nm design. It is made up of 336 SPUs, 56 Texture Address Units, and 24 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 230		65 Watts
GeForce GTX 460		150 Watts
	Difference: 85 Watts (131%)

Memory Bandwidth

Performance-wise, the GeForce GTX 460 should theoretically be much better than the GeForce GT 230 in general. (explain)

GeForce GTX 460		86400 MB/sec
GeForce GT 230		38400 MB/sec
	Difference: 48000 (125%)

Texel Rate

The GeForce GTX 460 is much (approximately 330%) faster with regards to texture filtering than the GeForce GT 230. (explain)

GeForce GTX 460		37800 Mtexels/sec
GeForce GT 230		8800 Mtexels/sec
	Difference: 29000 (330%)

Pixel Rate

The GeForce GTX 460 should be a lot (approximately 268%) more effective at AA than the GeForce GT 230, and also should be able to handle higher resolutions while still performing well. (explain)

GeForce GTX 460		16200 Mpixels/sec
GeForce GT 230		4400 Mpixels/sec
	Difference: 11800 (268%)

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 max amount of information (measured in MB per second) that can be transferred across the external memory interface in a second. It is worked out by multiplying the interface width by its memory speed. In the case of DDR type memory, the result should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The better the bandwidth is, the better 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 number is calculated by multiplying the total amount of texture units of the card by the core clock speed of the chip. The higher this number, the better the card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in a second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics card can possibly record to its local memory per second - measured in millions of pixels per second. The number is calculated by multiplying the amount of ROPs by the clock speed of the card. 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 quite a few other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to get to the max fill rate.