GeForce GT 320 vs GeForce GTX 465

Intro

Compare those specs to the GeForce GTX 465, which comes with clock speeds of 607 MHz on the GPU, and 802 MHz on the 1024 MB of GDDR5 RAM. It features 352 SPUs along with 44 Texture Address Units and 32 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 320		43 Watts
GeForce GTX 465		200 Watts
	Difference: 157 Watts (365%)

Memory Bandwidth

Theoretically speaking, the GeForce GTX 465 should be much faster than the GeForce GT 320 in general. (explain)

GeForce GTX 465		102592 MB/sec
GeForce GT 320		25280 MB/sec
	Difference: 77312 (306%)

Texel Rate

The GeForce GTX 465 is much (about 106%) more effective at texture filtering than the GeForce GT 320. (explain)

GeForce GTX 465		26708 Mtexels/sec
GeForce GT 320		12960 Mtexels/sec
	Difference: 13748 (106%)

Pixel Rate

If running with high levels of AA is important to you, then the GeForce GTX 465 is the winner, and very much so. (explain)

GeForce GTX 465		19424 Mpixels/sec
GeForce GT 320		4320 Mpixels/sec
	Difference: 15104 (350%)

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 maximum amount of data (counted in megabytes per second) that can be transported over the external memory interface within a second. It's calculated by multiplying the bus width by the speed of its memory. In the case of DDR type memory, it should be multiplied by 2 again. If 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 high resolutions.

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

Pixel Rate: Pixel rate is the maximum number of pixels the video card can possibly write to the local memory in one second - measured in millions of pixels per second. The figure is worked out by multiplying the amount of Raster Operations Pipelines by the the core clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate is also dependant on many 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.