GeForce 810M vs GeForce 9800 GX2

Intro

Compare those specs to the GeForce 9800 GX2, which uses a 65 nm design. nVidia has clocked the core speed at 600 MHz. The GDDR3 memory is set to run at a frequency of 1000 MHz on this card. It features 128 SPUs as well as 64 Texture Address Units and 16 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce 810M		15 Watts
GeForce 9800 GX2		197 Watts
	Difference: 182 Watts (1213%)

Memory Bandwidth

The GeForce 9800 GX2 should in theory be quite a bit faster than the GeForce 810M overall. (explain)

GeForce 9800 GX2		128000 MB/sec
GeForce 810M		14400 MB/sec
	Difference: 113600 (789%)

Texel Rate

The GeForce 9800 GX2 is a lot (approximately 1201%) better at AF than the GeForce 810M. (explain)

GeForce 9800 GX2		76800 Mtexels/sec
GeForce 810M		5904 Mtexels/sec
	Difference: 70896 (1201%)

Pixel Rate

The GeForce 9800 GX2 is much (about 550%) faster with regards to FSAA than the GeForce 810M, and capable of handling higher screen resolutions without losing too much performance. (explain)

GeForce 9800 GX2		19200 Mpixels/sec
GeForce 810M		2952 Mpixels/sec
	Difference: 16248 (550%)

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.

One or more cards in this comparison are multi-core. This means that their bandwidth, texel and pixel rates are theoretically doubled - this does not mean the card will actually perform twice as fast, but only that it should in theory be able to. Actual game benchmarks will give a more accurate idea of what it's capable of.

Price Comparison

Specifications

Memory Bandwidth: Bandwidth is the maximum amount of data (measured in megabytes per second) that can be transferred across the external memory interface within a second. The number is calculated by multiplying the bus width by the speed of its memory. In the case of DDR RAM, the result should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The better 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 texture map elements (texels) that can be processed in one second. This figure is worked out by multiplying the total amount of texture units by the core speed of the chip. The higher this number, the better the video card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in one second.

Pixel Rate: Pixel rate is the most pixels that the graphics card can possibly record to its local memory per second - measured in millions of pixels per second. The number is calculated by multiplying the amount of colour ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel output rate is also dependant on lots of other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the potential to reach the maximum fill rate.