GeForce GT 430 vs GeForce GTX 275

Intro

Compare all of that to the GeForce GTX 275, which features a clock frequency of 633 MHz and a GDDR3 memory speed of 1134 MHz. It also makes use of a 448-bit memory bus, and uses a 55 nm design. It is made up of 240 SPUs, 80 TAUs, and 28 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 430		60 Watts
GeForce GTX 275		219 Watts
	Difference: 159 Watts (265%)

Memory Bandwidth

Performance-wise, the GeForce GTX 275 should theoretically be a lot superior to the GeForce GT 430 in general. (explain)

GeForce GTX 275		127008 MB/sec
GeForce GT 430		28800 MB/sec
	Difference: 98208 (341%)

Texel Rate

The GeForce GTX 275 will be quite a bit (approximately 352%) better at texture filtering than the GeForce GT 430. (explain)

GeForce GTX 275		50640 Mtexels/sec
GeForce GT 430		11200 Mtexels/sec
	Difference: 39440 (352%)

Pixel Rate

If running with high levels of AA is important to you, then the GeForce GTX 275 is a better choice, by a large margin. (explain)

GeForce GTX 275		17724 Mpixels/sec
GeForce GT 430		2800 Mpixels/sec
	Difference: 14924 (533%)

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 maximum amount of information (in units of MB per second) that can be moved across the external memory interface within a second. It is worked out by multiplying the card's interface width by the speed of its memory. If the card has DDR RAM, it must be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The higher the card's memory bandwidth, the better 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 can be processed in one second. This is worked out by multiplying the total number of texture units of the card by the core clock speed of the chip. The higher this number, the better the graphics card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels in a second.

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