GeForce GT 430 1GB vs GeForce GT 440 3GB

Intro

Compare those specifications to the GeForce GT 440 3GB, which has a core clock frequency of 594 MHz and a GDDR3 memory frequency of 900 MHz. It also features a 192-bit memory bus, and makes use of a 40 nm design. It features 144 SPUs, 24 TAUs, and 24 Raster Operation Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 440 3GB		56 Watts
GeForce GT 430 1GB		60 Watts
	Difference: 4 Watts (7%)

Memory Bandwidth

Theoretically speaking, the GeForce GT 440 3GB should be much faster than the GeForce GT 430 1GB in general. (explain)

GeForce GT 440 3GB		43200 MB/sec
GeForce GT 430 1GB		28800 MB/sec
	Difference: 14400 (50%)

Texel Rate

The GeForce GT 440 3GB will be a lot (more or less 27%) faster with regards to texture filtering than the GeForce GT 430 1GB. (explain)

GeForce GT 440 3GB		14256 Mtexels/sec
GeForce GT 430 1GB		11200 Mtexels/sec
	Difference: 3056 (27%)

Pixel Rate

The GeForce GT 440 3GB will be quite a bit (approximately 409%) more effective at full screen anti-aliasing than the GeForce GT 430 1GB, and should be capable of handling higher resolutions while still performing well. (explain)

GeForce GT 440 3GB		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 data (measured in MB per second) that can be moved past the external memory interface within a second. It is worked out by multiplying the interface width by its memory clock speed. In the case of DDR RAM, it should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The higher the bandwidth is, the faster the card will be in general. It especially helps with AA, High Dynamic Range and higher screen resolutions.

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

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