GeForce GT 320 vs GeForce GT 340 1GB

Intro

Compare all that to the GeForce GT 340 1GB, which uses a 40 nm design. nVidia has clocked the core speed at 550 MHz. The GDDR5 memory is set to run at a speed of 850 MHz on this particular model. It features 96 SPUs as well as 32 TAUs and 8 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 320		43 Watts
GeForce GT 340 1GB		69 Watts
	Difference: 26 Watts (60%)

Memory Bandwidth

The GeForce GT 340 1GB should theoretically be a lot faster than the GeForce GT 320 overall. (explain)

GeForce GT 340 1GB		54400 MB/sec
GeForce GT 320		25280 MB/sec
	Difference: 29120 (115%)

Texel Rate

The GeForce GT 340 1GB should be much (more or less 36%) faster with regards to texture filtering than the GeForce GT 320. (explain)

GeForce GT 340 1GB		17600 Mtexels/sec
GeForce GT 320		12960 Mtexels/sec
	Difference: 4640 (36%)

Pixel Rate

If running with lots of anti-aliasing is important to you, then the GeForce GT 340 1GB is superior to the GeForce GT 320, but not by far. (explain)

GeForce GT 340 1GB		4400 Mpixels/sec
GeForce GT 320		4320 Mpixels/sec
	Difference: 80 (2%)

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 (in units of megabytes per second) that can be transported over the external memory interface within a second. It is calculated by multiplying the interface width by the speed of its memory. If the card has DDR RAM, the result should be multiplied by 2 again. If DDR5, multiply by 4 instead. The higher the memory bandwidth, the better 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 can be processed per second. This number is calculated by multiplying the total texture units of the card by the core clock speed of the chip. The higher the texel rate, the better the card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in a second.

Pixel Rate: Pixel rate is the most pixels the graphics card could possibly write to the local memory per second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount of Render Output Units by the the core speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel output rate also depends on many other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the ability to get to the max fill rate.