GeForce 810M vs Radeon HD 4870 2GB

Intro

Compare that to the Radeon HD 4870 2GB, which uses a 55 nm design. AMD has set the core frequency at 750 MHz. The GDDR5 memory runs at a speed of 900 MHz on this specific model. It features 800(160x5) SPUs as well as 40 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
Radeon HD 4870 2GB		150 Watts
	Difference: 135 Watts (900%)

Memory Bandwidth

The Radeon HD 4870 2GB, in theory, should be a lot faster than the GeForce 810M in general. (explain)

Radeon HD 4870 2GB		115200 MB/sec
GeForce 810M		14400 MB/sec
	Difference: 100800 (700%)

Texel Rate

The Radeon HD 4870 2GB should be a lot (approximately 408%) better at anisotropic filtering than the GeForce 810M. (explain)

Radeon HD 4870 2GB		30000 Mtexels/sec
GeForce 810M		5904 Mtexels/sec
	Difference: 24096 (408%)

Pixel Rate

The Radeon HD 4870 2GB should be quite a bit (more or less 307%) faster with regards to AA than the GeForce 810M, and able to handle higher resolutions while still performing well. (explain)

Radeon HD 4870 2GB		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: Memory bandwidth is the largest amount of data (counted in MB per second) that can be moved across the external memory interface in a second. It is worked out by multiplying the card's bus width by the speed of its memory. If it uses DDR type memory, it must be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The better the memory bandwidth, the better 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 are applied per second. This figure is calculated by multiplying the total 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 processed in one second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics chip can possibly record to the local memory per second - measured in millions of pixels per second. The number is worked out by multiplying the number of Raster Operations Pipelines by the the core speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate is also dependant on quite a few other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to reach the max fill rate.