GeForce GT 320 vs GeForce GTX 980

Intro

Compare all that to the GeForce GTX 980, which features a clock frequency of 1126 MHz and a GDDR5 memory speed of 1750 MHz. It also makes use of a 256-bit bus, and uses a 28 nm design. It is comprised of 2048 SPUs, 128 Texture Address Units, and 64 Raster Operation Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 320		43 Watts
GeForce GTX 980		165 Watts
	Difference: 122 Watts (284%)

Memory Bandwidth

The GeForce GTX 980 should theoretically perform a lot faster than the GeForce GT 320 in general. (explain)

GeForce GTX 980		224000 MB/sec
GeForce GT 320		25280 MB/sec
	Difference: 198720 (786%)

Texel Rate

The GeForce GTX 980 will be quite a bit (approximately 1012%) better at texture filtering than the GeForce GT 320. (explain)

GeForce GTX 980		144128 Mtexels/sec
GeForce GT 320		12960 Mtexels/sec
	Difference: 131168 (1012%)

Pixel Rate

If running with high levels of AA is important to you, then the GeForce GTX 980 is superior to the GeForce GT 320, by a large margin. (explain)

GeForce GTX 980		72064 Mpixels/sec
GeForce GT 320		4320 Mpixels/sec
	Difference: 67744 (1568%)

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 transferred over the external memory interface within a second. It's calculated by multiplying the bus width by the speed of its memory. If the card has DDR type RAM, the result should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The better the memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, 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 worked out by multiplying the total amount of texture units of the card by the core clock speed of the chip. The better this number, the better the video card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in one second.

Pixel Rate: Pixel rate is the maximum number of pixels the video card could possibly record to its local memory per second - measured in millions of pixels per second. The number is worked out by multiplying the amount of Render Output Units by the the core speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate also depends on quite a few other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the ability to get to the maximum fill rate.