GeForce GT 430 1GB vs GeForce GT 440 1.5GB

Intro

Compare that to the GeForce GT 440 1.5GB, which has a clock frequency of 594 MHz and a GDDR3 memory speed of 900 MHz. It also uses a 192-bit memory bus, and makes use of a 40 nm design. It is comprised of 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 1.5GB		56 Watts
GeForce GT 430 1GB		60 Watts
	Difference: 4 Watts (7%)

Memory Bandwidth

Performance-wise, the GeForce GT 440 1.5GB should in theory be much superior to the GeForce GT 430 1GB overall. (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 a lot (about 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 a high screen resolution 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: Memory bandwidth is the max amount of data (measured in megabytes per second) that can be transferred across the external memory interface in a second. The number is worked out by multiplying the card's interface width by its memory speed. If the card has DDR memory, it should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The better 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 texture map elements (texels) that are processed in one second. This is worked out by multiplying the total texture units of the card by the core 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 in a second.

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