GeForce 810M vs GeForce GTS 250 512MB

Intro

Compare those specifications to the GeForce GTS 250 512MB, which comes with a clock frequency of 738 MHz and a GDDR3 memory frequency of 1100 MHz. It also makes use of a 256-bit bus, and makes use of a 65/55 nm design. It is made up of 128 SPUs, 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 GTS 250 512MB		145 Watts
	Difference: 130 Watts (867%)

Memory Bandwidth

The GeForce GTS 250 512MB, in theory, should perform quite a bit faster than the GeForce 810M in general. (explain)

GeForce GTS 250 512MB		70400 MB/sec
GeForce 810M		14400 MB/sec
	Difference: 56000 (389%)

Texel Rate

The GeForce GTS 250 512MB will be quite a bit (more or less 700%) better at AF than the GeForce 810M. (explain)

GeForce GTS 250 512MB		47232 Mtexels/sec
GeForce 810M		5904 Mtexels/sec
	Difference: 41328 (700%)

Pixel Rate

The GeForce GTS 250 512MB is much (more or less 300%) faster with regards to AA than the GeForce 810M, and also capable of handling higher screen resolutions without losing too much performance. (explain)

GeForce GTS 250 512MB		11808 Mpixels/sec
GeForce 810M		2952 Mpixels/sec
	Difference: 8856 (300%)

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 maximum amount of information (in units of megabytes per second) that can be moved over the external memory interface in a second. The number is calculated by multiplying the card's interface width by its memory speed. If it uses DDR RAM, it should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The better the memory bandwidth, the faster 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 number of texture map elements (texels) that are applied per second. This is worked out by multiplying the total amount of texture units of the card by the core speed of the chip. The higher the texel rate, the better the graphics card will be at 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 card can possibly record to its local memory in a second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of Render Output Units by the the core clock speed. 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, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the ability to get to the max fill rate.