GeForce GTX 880M vs Radeon HD 5750 1GB

Intro

Compare all that to the Radeon HD 5750 1GB, which has clock speeds of 700 MHz on the GPU, and 1150 MHz on the 1024 MB of GDDR5 RAM. It features 720(144x5) SPUs along with 36 TAUs and 16 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 5750 1GB		86 Watts
GeForce GTX 880M		130 Watts
	Difference: 44 Watts (51%)

Memory Bandwidth

Theoretically, the GeForce GTX 880M should perform quite a bit faster than the Radeon HD 5750 1GB overall. (explain)

GeForce GTX 880M		128000 MB/sec
Radeon HD 5750 1GB		73600 MB/sec
	Difference: 54400 (74%)

Texel Rate

The GeForce GTX 880M should be a lot (more or less 385%) more effective at AF than the Radeon HD 5750 1GB. (explain)

GeForce GTX 880M		122112 Mtexels/sec
Radeon HD 5750 1GB		25200 Mtexels/sec
	Difference: 96912 (385%)

Pixel Rate

The GeForce GTX 880M will be much (approximately 173%) faster with regards to anti-aliasing than the Radeon HD 5750 1GB, and should be able to handle higher screen resolutions better. (explain)

GeForce GTX 880M		30528 Mpixels/sec
Radeon HD 5750 1GB		11200 Mpixels/sec
	Difference: 19328 (173%)

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 maximum amount of information (in units of megabytes per second) that can be transported over the external memory interface in one second. It's calculated by multiplying the card's bus width by its memory speed. If it uses DDR RAM, the result should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The better the bandwidth is, 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 in one second. This figure is worked out by multiplying the total number of texture units by the core clock speed of the chip. The higher this number, the better the video 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 the graphics card could possibly record to the local memory per second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate also depends on quite a few other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to reach the max fill rate.