GeForce GT 230 vs Geforce GTX 680

Intro

Compare those specs to the Geforce GTX 680, which comes with core speeds of 1006 MHz on the GPU, and 1502 MHz on the 2048 MB of GDDR5 memory. It features 1536 SPUs along with 128 TAUs and 32 Rasterization Operator Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 230		65 Watts
Geforce GTX 680		195 Watts
	Difference: 130 Watts (200%)

Memory Bandwidth

The Geforce GTX 680 should theoretically perform a lot faster than the GeForce GT 230 in general. (explain)

Geforce GTX 680		192256 MB/sec
GeForce GT 230		38400 MB/sec
	Difference: 153856 (401%)

Texel Rate

The Geforce GTX 680 will be much (approximately 1363%) better at AF than the GeForce GT 230. (explain)

Geforce GTX 680		128768 Mtexels/sec
GeForce GT 230		8800 Mtexels/sec
	Difference: 119968 (1363%)

Pixel Rate

If using high levels of AA is important to you, then the Geforce GTX 680 is a better choice, and very much so. (explain)

Geforce GTX 680		32192 Mpixels/sec
GeForce GT 230		4400 Mpixels/sec
	Difference: 27792 (632%)

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 data (in units of MB per second) that can be transferred across the external memory interface in a second. The number is worked out by multiplying the card's bus width by the speed of its memory. If it uses DDR type memory, it must 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 AA, HDR and higher screen resolutions.

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

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics card could possibly record to its local memory in a second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of Render Output Units by the clock speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel output rate also depends on many other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to reach the max fill rate.