GeForce GT 320 vs GeForce GTX 465

Intro

Compare those specs to the GeForce GTX 465, which has a core clock speed of 607 MHz and a GDDR5 memory frequency of 802 MHz. It also uses a 256-bit memory bus, and uses a 40 nm design. It is comprised of 352 SPUs, 44 TAUs, and 32 Raster Operation Units.

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

The GeForce GTX 465 should theoretically perform quite a bit 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 should be quite a bit (more or less 106%) better at AF than the GeForce GT 320. (explain)

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

Pixel Rate

If using a high screen resolution is important to you, then the GeForce GTX 465 is a better choice, 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 largest amount of information (counted in megabytes per second) that can be transported across the external memory interface in a second. It's calculated by multiplying the interface width by the speed of its memory. If it uses DDR type memory, the result should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The better the card's 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 applied in one second. This is worked out by multiplying the total amount of texture units of the card by the core speed of the chip. The better the texel rate, the better the graphics 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 maximum number of pixels that the graphics card could possibly write to its local memory in one second - measured in millions of pixels per second. The number is worked out by multiplying the number of ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel output rate is also dependant on quite a few other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the ability to get to the max fill rate.