GeForce 810M vs GeForce GT 320

Intro

Compare those specifications to the GeForce GT 320, which has GPU core speed of 540 MHz, and 1024 MB of GDDR3 memory running at 790 MHz through a 128-bit bus. It also is made up of 72 SPUs, 24 Texture Address Units, and 8 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce 810M		15 Watts
GeForce GT 320		43 Watts
	Difference: 28 Watts (187%)

Memory Bandwidth

Theoretically speaking, the GeForce GT 320 should perform a lot faster than the GeForce 810M in general. (explain)

GeForce GT 320		25280 MB/sec
GeForce 810M		14400 MB/sec
	Difference: 10880 (76%)

Texel Rate

The GeForce GT 320 will be much (more or less 120%) better at AF than the GeForce 810M. (explain)

GeForce GT 320		12960 Mtexels/sec
GeForce 810M		5904 Mtexels/sec
	Difference: 7056 (120%)

Pixel Rate

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

GeForce GT 320		4320 Mpixels/sec
GeForce 810M		2952 Mpixels/sec
	Difference: 1368 (46%)

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 (measured in megabytes per second) that can be transferred over the external memory interface within a second. It is worked out by multiplying the card's bus width by its memory speed. If it uses DDR RAM, the result should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The higher the memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that can be applied in one second. This is calculated by multiplying the total texture units of the card by the core speed of the chip. The better the texel rate, the better the video card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in one second.

Pixel Rate: Pixel rate is the most pixels that the graphics chip can possibly write to its local memory in a second - measured in millions of pixels per second. The number is worked out by multiplying the number of Render Output Units by the clock speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill rate also depends on lots of other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the ability to get to the max fill rate.