GeForce 830M vs Radeon HD 6750 1GB

Intro

Compare all of that to the Radeon HD 6750 1GB, which features a GPU core clock speed of 725 MHz, and 1024 MB of GDDR5 RAM set to run at 1000 MHz through a 128-bit bus. It also is made up of 720 SPUs, 36 TAUs, and 16 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce 830M		25 Watts
Radeon HD 6750 1GB		86 Watts
	Difference: 61 Watts (244%)

Memory Bandwidth

In theory, the Radeon HD 6750 1GB should be 344% quicker than the GeForce 830M overall, because of its greater data rate. (explain)

Radeon HD 6750 1GB		64000 MB/sec
GeForce 830M		14400 MB/sec
	Difference: 49600 (344%)

Texel Rate

The Radeon HD 6750 1GB is quite a bit (more or less 59%) faster with regards to anisotropic filtering than the GeForce 830M. (explain)

Radeon HD 6750 1GB		26100 Mtexels/sec
GeForce 830M		16464 Mtexels/sec
	Difference: 9636 (59%)

Pixel Rate

The Radeon HD 6750 1GB is much (more or less 41%) better at full screen anti-aliasing than the GeForce 830M, and will be capable of handling higher resolutions better. (explain)

Radeon HD 6750 1GB		11600 Mpixels/sec
GeForce 830M		8232 Mpixels/sec
	Difference: 3368 (41%)

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 MB per second) that can be moved over the external memory interface in a second. It's worked out by multiplying the card's interface width by the speed of its memory. If it uses DDR type RAM, the result should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The better the memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and higher screen resolutions.

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

Pixel Rate: Pixel rate is the most pixels the graphics card could possibly record to the local memory in one second - measured in millions of pixels per second. The number is worked out by multiplying the amount of Raster Operations Pipelines by the the card's clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel output rate is also dependant on lots of other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the potential to get to the maximum fill rate.