GeForce GTX 870M vs Radeon HD 5750 512MB

Intro

Compare those specs to the Radeon HD 5750 512MB, which has GPU core speed of 700 MHz, and 512 MB of GDDR5 memory set to run at 1150 MHz through a 128-bit bus. It also features 720(144x5) Stream Processors, 36 TAUs, and 16 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 5750 512MB		86 Watts
GeForce GTX 870M		110 Watts
	Difference: 24 Watts (28%)

Memory Bandwidth

Theoretically, the GeForce GTX 870M should be much faster than the Radeon HD 5750 512MB in general. (explain)

GeForce GTX 870M		96000 MB/sec
Radeon HD 5750 512MB		73600 MB/sec
	Difference: 22400 (30%)

Texel Rate

The GeForce GTX 870M will be much (about 318%) more effective at texture filtering than the Radeon HD 5750 512MB. (explain)

GeForce GTX 870M		105392 Mtexels/sec
Radeon HD 5750 512MB		25200 Mtexels/sec
	Difference: 80192 (318%)

Pixel Rate

The GeForce GTX 870M is a lot (more or less 102%) faster with regards to anti-aliasing than the Radeon HD 5750 512MB, and able to handle higher resolutions better. (explain)

GeForce GTX 870M		22584 Mpixels/sec
Radeon HD 5750 512MB		11200 Mpixels/sec
	Difference: 11384 (102%)

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 information (counted in MB per second) that can be transported past the external memory interface within a second. It is calculated by multiplying the bus width by its memory speed. If the card has DDR type memory, it must be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The higher 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 number of texture map elements (texels) that can be applied per second. This is worked out by multiplying the total amount of texture units by the core clock speed of the chip. The higher this number, the better the card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels in a second.

Pixel Rate: Pixel rate is the most pixels that the graphics card could possibly record to its local memory per second - measured in millions of pixels per second. The number is calculated by multiplying the number of Render Output Units by the the core clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for filling the screen with pixels (the image). 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 potential to reach the maximum fill rate.