GeForce 810M vs Radeon HD 4870 1GB

Intro

Compare all of that to the Radeon HD 4870 1GB, which has core clock speeds of 750 MHz on the GPU, and 900 MHz on the 1024 MB of GDDR5 RAM. It features 800(160x5) SPUs along with 40 TAUs and 16 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce 810M		15 Watts
Radeon HD 4870 1GB		150 Watts
	Difference: 135 Watts (900%)

Memory Bandwidth

In theory, the Radeon HD 4870 1GB should be much faster than the GeForce 810M in general. (explain)

Radeon HD 4870 1GB		115200 MB/sec
GeForce 810M		14400 MB/sec
	Difference: 100800 (700%)

Texel Rate

The Radeon HD 4870 1GB should be a lot (approximately 408%) more effective at anisotropic filtering than the GeForce 810M. (explain)

Radeon HD 4870 1GB		30000 Mtexels/sec
GeForce 810M		5904 Mtexels/sec
	Difference: 24096 (408%)

Pixel Rate

If using lots of anti-aliasing is important to you, then the Radeon HD 4870 1GB is a better choice, by far. (explain)

Radeon HD 4870 1GB		12000 Mpixels/sec
GeForce 810M		2952 Mpixels/sec
	Difference: 9048 (307%)

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 megabytes per second) that can be moved over the external memory interface in a second. The number is calculated by multiplying the card's bus width by its memory clock speed. If it uses DDR memory, it should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The better the card's memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, HDR and high resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that can be applied in one second. This number is worked out by multiplying the total amount of texture units by the core speed of the chip. The better the texel rate, the better the graphics card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed per second.

Pixel Rate: Pixel rate is the most pixels that the graphics chip could possibly write to its local memory in a second - measured in millions of pixels per second. The number is calculated by multiplying the amount of Raster Operations Pipelines by the the card's clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate is also dependant on many other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to get to the maximum fill rate.