GeForce GT 430 1GB vs GeForce GT 440 1.5GB

Intro

Compare those specs to the GeForce GT 440 1.5GB, which features core clock speeds of 594 MHz on the GPU, and 900 MHz on the 1536 MB of GDDR3 memory. It features 144 SPUs along with 24 TAUs and 24 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 440 1.5GB		56 Watts
GeForce GT 430 1GB		60 Watts
	Difference: 4 Watts (7%)

Memory Bandwidth

Theoretically speaking, the GeForce GT 440 1.5GB is 50% faster than the GeForce GT 430 1GB in general, because of its greater bandwidth. (explain)

GeForce GT 440 1.5GB		43200 MB/sec
GeForce GT 430 1GB		28800 MB/sec
	Difference: 14400 (50%)

Texel Rate

The GeForce GT 440 1.5GB is a lot (approximately 27%) more effective at AF than the GeForce GT 430 1GB. (explain)

GeForce GT 440 1.5GB		14256 Mtexels/sec
GeForce GT 430 1GB		11200 Mtexels/sec
	Difference: 3056 (27%)

Pixel Rate

If running with lots of anti-aliasing is important to you, then the GeForce GT 440 1.5GB is the winner, by far. (explain)

GeForce GT 440 1.5GB		14256 Mpixels/sec
GeForce GT 430 1GB		2800 Mpixels/sec
	Difference: 11456 (409%)

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 max amount of information (in units of megabytes per second) that can be transferred over the external memory interface within a second. It's worked out by multiplying the card's bus width by its memory clock speed. If the card has DDR type RAM, the result should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The higher the card's memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum amount of 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 speed of the chip. The better this number, the better the video 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 amount of pixels that the graphics card could possibly write to its local memory per second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of Raster Operations Pipelines by the the card's clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel rate also depends on lots of other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the ability to reach the maximum fill rate.