GeForce GT 340 1GB vs GeForce GT 440 3GB

Intro

Compare all of that to the GeForce GT 440 3GB, which makes use of a 40 nm design. nVidia has clocked the core frequency at 594 MHz. The GDDR3 RAM works at a frequency of 900 MHz on this particular model. It features 144 SPUs as well as 24 TAUs and 24 Rasterization Operator Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 440 3GB		56 Watts
GeForce GT 340 1GB		69 Watts
	Difference: 13 Watts (23%)

Memory Bandwidth

As far as performance goes, the GeForce GT 340 1GB should theoretically be quite a bit superior to the GeForce GT 440 3GB overall. (explain)

GeForce GT 340 1GB		54400 MB/sec
GeForce GT 440 3GB		43200 MB/sec
	Difference: 11200 (26%)

Texel Rate

The GeForce GT 340 1GB should be much (more or less 23%) better at texture filtering than the GeForce GT 440 3GB. (explain)

GeForce GT 340 1GB		17600 Mtexels/sec
GeForce GT 440 3GB		14256 Mtexels/sec
	Difference: 3344 (23%)

Pixel Rate

The GeForce GT 440 3GB is a lot (approximately 224%) better at anti-aliasing than the GeForce GT 340 1GB, and also able to handle higher resolutions without slowing down too much. (explain)

GeForce GT 440 3GB		14256 Mpixels/sec
GeForce GT 340 1GB		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 data (counted in megabytes per second) that can be moved over the external memory interface in one second. It is worked out by multiplying the interface width by its memory speed. If the card has DDR memory, it must be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The better the card's 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 amount of texture map elements (texels) that are applied in one second. This figure is worked out by multiplying the total amount of texture units by the core speed of the chip. The better this number, the better the card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels in one second.

Pixel Rate: Pixel rate is the most pixels the video card could possibly record to the local memory per second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount of ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill rate is also dependant on lots of other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to reach the maximum fill rate.