GeForce GT 320 vs GeForce GTX 480

Intro

Compare that to the GeForce GTX 480, which uses a 40 nm design. nVidia has clocked the core frequency at 700 MHz. The GDDR5 RAM is set to run at a frequency of 924 MHz on this particular card. It features 480 SPUs along with 60 TAUs and 48 Rasterization Operator Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 320		43 Watts
GeForce GTX 480		250 Watts
	Difference: 207 Watts (481%)

Memory Bandwidth

The GeForce GTX 480 should in theory be much faster than the GeForce GT 320 in general. (explain)

GeForce GTX 480		177408 MB/sec
GeForce GT 320		25280 MB/sec
	Difference: 152128 (602%)

Texel Rate

The GeForce GTX 480 is much (about 224%) better at anisotropic filtering than the GeForce GT 320. (explain)

GeForce GTX 480		42000 Mtexels/sec
GeForce GT 320		12960 Mtexels/sec
	Difference: 29040 (224%)

Pixel Rate

The GeForce GTX 480 is a lot (approximately 678%) faster with regards to FSAA than the GeForce GT 320, and also should be able to handle higher resolutions more effectively. (explain)

GeForce GTX 480		33600 Mpixels/sec
GeForce GT 320		4320 Mpixels/sec
	Difference: 29280 (678%)

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 (counted in megabytes per second) that can be moved over the external memory interface within a second. It is worked out by multiplying the bus width by its memory clock speed. If it uses DDR type memory, it must 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, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that can be processed in one second. This figure is calculated by multiplying the total number of texture units of the card 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 applied per second.

Pixel Rate: Pixel rate is the maximum number of pixels the graphics card can possibly write to its local memory per second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel output rate also depends on quite a few other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the potential to reach the max fill rate.