GeForce 810M vs GeForce GTS 250 512MB

Intro

Compare all that to the GeForce GTS 250 512MB, which comes with core speeds of 738 MHz on the GPU, and 1100 MHz on the 512 MB of GDDR3 RAM. It features 128 SPUs as well as 64 TAUs and 16 Rasterization Operator Units.

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

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

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

Texel Rate

The GeForce GTS 250 512MB is quite a bit (approximately 700%) more effective 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 will be quite a bit (approximately 300%) faster with regards to FSAA than the GeForce 810M, and also able to handle higher resolutions while still performing well. (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 max amount of data (counted in megabytes per second) that can be transported past the external memory interface in one second. It's calculated by multiplying the card's interface width by its memory clock speed. If it uses DDR type RAM, it must be multiplied by 2 once again. If 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 high resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that are processed per second. This figure is calculated by multiplying the total amount of texture units of the card by the core 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 applied in one second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics card can possibly record to the local memory in one second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount of colour ROPs 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 of the card - the lower the memory bandwidth is, the lower the ability to reach the maximum fill rate.