GeForce GT 430 1GB vs GeForce GTX 275

Intro

Compare those specs to the GeForce GTX 275, which features a core clock frequency of 633 MHz and a GDDR3 memory frequency of 1134 MHz. It also features a 448-bit memory bus, and makes use of a 55 nm design. It is made up of 240 SPUs, 80 TAUs, and 28 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 430 1GB		60 Watts
GeForce GTX 275		219 Watts
	Difference: 159 Watts (265%)

Memory Bandwidth

In theory, the GeForce GTX 275 is 341% faster than the GeForce GT 430 1GB in general, due to its greater data rate. (explain)

GeForce GTX 275		127008 MB/sec
GeForce GT 430 1GB		28800 MB/sec
	Difference: 98208 (341%)

Texel Rate

The GeForce GTX 275 will be quite a bit (about 352%) more effective at texture filtering than the GeForce GT 430 1GB. (explain)

GeForce GTX 275		50640 Mtexels/sec
GeForce GT 430 1GB		11200 Mtexels/sec
	Difference: 39440 (352%)

Pixel Rate

If using a high resolution is important to you, then the GeForce GTX 275 is a better choice, by far. (explain)

GeForce GTX 275		17724 Mpixels/sec
GeForce GT 430 1GB		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: Bandwidth is the largest amount of information (in units of megabytes per second) that can be transported across the external memory interface within a second. The number is worked out by multiplying the bus width by its memory clock speed. If it uses DDR type RAM, the result should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The better the bandwidth is, the better the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be applied per second. This number is calculated 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 handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels in one second.

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics chip can possibly write to its local memory in one second - measured in millions of pixels per second. The figure is worked out by multiplying the amount of Raster Operations Pipelines by the the card's clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate also depends on many other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the ability to reach the maximum fill rate.