GeForce 810M vs GeForce 8500 GT

Intro

Compare those specs to the GeForce 8500 GT, which has a core clock speed of 450 MHz and a DDR2 memory frequency of 400 MHz. It also features a 128-bit memory bus, and uses a 80 nm design. It features 16 SPUs, 8 Texture Address Units, and 4 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce 810M		15 Watts
GeForce 8500 GT		45 Watts
	Difference: 30 Watts (200%)

Memory Bandwidth

In theory, the GeForce 810M is 13% faster than the GeForce 8500 GT in general, due to its higher bandwidth. (explain)

GeForce 810M		14400 MB/sec
GeForce 8500 GT		12800 MB/sec
	Difference: 1600 (13%)

Texel Rate

The GeForce 810M is much (approximately 64%) better at texture filtering than the GeForce 8500 GT. (explain)

GeForce 810M		5904 Mtexels/sec
GeForce 8500 GT		3600 Mtexels/sec
	Difference: 2304 (64%)

Pixel Rate

The GeForce 810M is much (more or less 64%) more effective at AA than the GeForce 8500 GT, and will be capable of handling higher screen resolutions better. (explain)

GeForce 810M		2952 Mpixels/sec
GeForce 8500 GT		1800 Mpixels/sec
	Difference: 1152 (64%)

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 across the external memory interface within a second. It's worked out by multiplying the card's interface width by the speed of its memory. In the case of DDR type RAM, the result should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The higher the bandwidth is, 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 number of texture map elements (texels) that are applied per second. This figure is worked out by multiplying the total amount of texture units by the core speed of the chip. The higher the texel rate, the better the 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 write to its local memory in one second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the amount of Raster Operations Pipelines by the clock speed of the card. ROPs (Raster Operations Pipelines - aka 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, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to reach the maximum fill rate.