GeForce GT 430 1GB vs GeForce GT 440 1.5GB

Intro

Compare those specs to the GeForce GT 440 1.5GB, which comes with GPU clock speed of 594 MHz, and 1536 MB of GDDR3 memory set to run at 900 MHz through a 192-bit bus. It also features 144 SPUs, 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

The GeForce GT 440 1.5GB should in theory be a lot faster than the GeForce GT 430 1GB in general. (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 should be much (approximately 27%) faster with regards to anisotropic filtering 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 using lots of anti-aliasing is important to you, then the GeForce GT 440 1.5GB is a better choice, 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 largest amount of information (counted in MB per second) that can be transported over the external memory interface in one second. It's worked out by multiplying the interface width by its memory clock speed. In the case of DDR RAM, the result should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The better the bandwidth is, the faster the card will be in general. It especially helps with AA, HDR and high resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that can be processed per second. This figure is worked out by multiplying the total amount of texture units by the core clock speed of the chip. The better this number, the better the card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed per second.

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics card could possibly record to the local memory per second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of Raster Operations Pipelines by the clock speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel output rate also depends on quite a few other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to reach the maximum fill rate.