GeForce GT 340 vs GeForce GT 440 1.5GB

Intro

Compare all of that to the GeForce GT 440 1.5GB, which uses a 40 nm design. nVidia has set the core frequency at 594 MHz. The GDDR3 RAM works at a speed of 900 MHz on this card. 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 1.5GB		56 Watts
GeForce GT 340		69 Watts
	Difference: 13 Watts (23%)

Memory Bandwidth

In theory, the GeForce GT 340 should be 26% faster than the GeForce GT 440 1.5GB overall, because of its greater bandwidth. (explain)

GeForce GT 340		54400 MB/sec
GeForce GT 440 1.5GB		43200 MB/sec
	Difference: 11200 (26%)

Texel Rate

The GeForce GT 340 should be quite a bit (more or less 23%) more effective at texture filtering than the GeForce GT 440 1.5GB. (explain)

GeForce GT 340		17600 Mtexels/sec
GeForce GT 440 1.5GB		14256 Mtexels/sec
	Difference: 3344 (23%)

Pixel Rate

If using lots of anti-aliasing is important to you, then the GeForce GT 440 1.5GB is the winner, by a large margin. (explain)

GeForce GT 440 1.5GB		14256 Mpixels/sec
GeForce GT 340		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: Bandwidth is the largest amount of information (measured 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 the speed of its memory. If it uses DDR type memory, the result should be multiplied by 2 again. If it uses 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 high resolutions.

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

Pixel Rate: Pixel rate is the most pixels that the graphics chip can possibly write to the local memory in a second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the amount of colour ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill rate is also dependant on many other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the potential to reach the max fill rate.