GeForce GT 430 1GB vs GeForce GTX 260 216SP 55 nm

Intro

Compare those specs to the GeForce GTX 260 216SP 55 nm, which features clock speeds of 576 MHz on the GPU, and 999 MHz on the 896 MB of GDDR3 memory. It features 216 SPUs along with 72 Texture Address Units and 28 Rasterization Operator Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 430 1GB		60 Watts
GeForce GTX 260 216SP 55 nm		171 Watts
	Difference: 111 Watts (185%)

Memory Bandwidth

As far as performance goes, the GeForce GTX 260 216SP 55 nm should theoretically be much better than the GeForce GT 430 1GB in general. (explain)

GeForce GTX 260 216SP 55 nm		111888 MB/sec
GeForce GT 430 1GB		28800 MB/sec
	Difference: 83088 (289%)

Texel Rate

The GeForce GTX 260 216SP 55 nm is much (more or less 270%) more effective at texture filtering than the GeForce GT 430 1GB. (explain)

GeForce GTX 260 216SP 55 nm		41472 Mtexels/sec
GeForce GT 430 1GB		11200 Mtexels/sec
	Difference: 30272 (270%)

Pixel Rate

If using high levels of AA is important to you, then the GeForce GTX 260 216SP 55 nm is a better choice, by a large margin. (explain)

GeForce GTX 260 216SP 55 nm		16128 Mpixels/sec
GeForce GT 430 1GB		2800 Mpixels/sec
	Difference: 13328 (476%)

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 data (in units of MB per second) that can be transported across the external memory interface in a second. It's calculated by multiplying the bus width by its memory clock speed. If the card has DDR memory, it must be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The better the card's 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 number of texture map elements (texels) that are processed in one second. This figure 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 video card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in one second.

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