GeForce GT 230 vs GeForce GT 440 1.5GB

Intro

Compare those specifications to the GeForce GT 440 1.5GB, which features a clock speed of 594 MHz and a GDDR3 memory frequency of 900 MHz. It also uses a 192-bit memory bus, and uses a 40 nm design. It is comprised of 144 SPUs, 24 Texture Address Units, 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 230		65 Watts
	Difference: 9 Watts (16%)

Memory Bandwidth

Theoretically speaking, the GeForce GT 440 1.5GB should be 13% faster than the GeForce GT 230 in general, due to its greater data rate. (explain)

GeForce GT 440 1.5GB		43200 MB/sec
GeForce GT 230		38400 MB/sec
	Difference: 4800 (13%)

Texel Rate

The GeForce GT 440 1.5GB should be much (more or less 62%) better at texture filtering than the GeForce GT 230. (explain)

GeForce GT 440 1.5GB		14256 Mtexels/sec
GeForce GT 230		8800 Mtexels/sec
	Difference: 5456 (62%)

Pixel Rate

The GeForce GT 440 1.5GB should be a lot (about 224%) more effective at AA than the GeForce GT 230, and also able to handle higher screen resolutions better. (explain)

GeForce GT 440 1.5GB		14256 Mpixels/sec
GeForce GT 230		4400 Mpixels/sec
	Difference: 9856 (224%)

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 largest amount of information (measured in MB per second) that can be moved past the external memory interface in a second. It is calculated by multiplying the bus width by its memory clock speed. In the case of DDR RAM, it should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The higher the memory bandwidth, 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 number of texture map elements (texels) that can be applied in one second. This number is worked out by multiplying the total amount of texture units by the core speed of the chip. The better the texel rate, the better the video card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in one second.

Pixel Rate: Pixel rate is the maximum number of pixels the video card can possibly record to the local memory in one second - measured in millions of pixels per second. The number is worked out by multiplying the number of colour ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for outputting the pixels (image) to the screen. 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 ability to reach the max fill rate.