GeForce 810M vs GeForce GTX 275

Intro

Compare that to the GeForce GTX 275, which features a clock speed of 633 MHz and a GDDR3 memory frequency of 1134 MHz. It also features a 448-bit memory bus, and uses a 55 nm design. It is made up of 240 SPUs, 80 TAUs, and 28 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce 810M		15 Watts
GeForce GTX 275		219 Watts
	Difference: 204 Watts (1360%)

Memory Bandwidth

In theory, the GeForce GTX 275 should perform much faster than the GeForce 810M overall. (explain)

GeForce GTX 275		127008 MB/sec
GeForce 810M		14400 MB/sec
	Difference: 112608 (782%)

Texel Rate

The GeForce GTX 275 should be a lot (approximately 758%) faster with regards to AF than the GeForce 810M. (explain)

GeForce GTX 275		50640 Mtexels/sec
GeForce 810M		5904 Mtexels/sec
	Difference: 44736 (758%)

Pixel Rate

The GeForce GTX 275 will be a lot (more or less 500%) more effective at FSAA than the GeForce 810M, and also will be capable of handling higher resolutions while still performing well. (explain)

GeForce GTX 275		17724 Mpixels/sec
GeForce 810M		2952 Mpixels/sec
	Difference: 14772 (500%)

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 information (in units of MB per second) that can be transported past the external memory interface within a second. The number is calculated by multiplying the card's bus width by the speed of its memory. If the card has DDR type RAM, it must be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The better the bandwidth is, the better the card will be in general. It especially helps with AA, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be applied per second. This is worked out by multiplying the total number 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 handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels in one second.

Pixel Rate: Pixel rate is the most pixels that the graphics chip could possibly record to the local memory in a second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the number of Raster Operations Pipelines by the clock speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel output rate also depends on quite a few 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.