GeForce 920M vs Radeon HD 6750 1GB

Intro

Compare that to the Radeon HD 6750 1GB, which features a core clock frequency of 725 MHz and a GDDR5 memory frequency of 1000 MHz. It also features a 128-bit memory bus, and uses a 40 nm design. It is made up of 720 SPUs, 36 Texture Address Units, and 16 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Memory Bandwidth

As far as performance goes, the Radeon HD 6750 1GB should in theory be a lot better than the GeForce 920M in general. (explain)

Radeon HD 6750 1GB		64000 MB/sec
GeForce 920M		14400 MB/sec
	Difference: 49600 (344%)

Texel Rate

The GeForce 920M is a bit (about 17%) more effective at AF than the Radeon HD 6750 1GB. (explain)

GeForce 920M		30528 Mtexels/sec
Radeon HD 6750 1GB		26100 Mtexels/sec
	Difference: 4428 (17%)

Pixel Rate

If using high levels of AA is important to you, then the Radeon HD 6750 1GB is a better choice, by far. (explain)

Radeon HD 6750 1GB		11600 Mpixels/sec
GeForce 920M		7632 Mpixels/sec
	Difference: 3968 (52%)

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 megabytes per second) that can be transferred across the external memory interface within a second. The number is calculated by multiplying the card's interface width by its memory speed. In the case of DDR RAM, it must be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The better the memory bandwidth, the better 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 number of texture map elements (texels) that are processed per second. This number is calculated by multiplying the total texture units of the card by the core speed of the chip. The higher the texel rate, the better the card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in one second.

Pixel Rate: Pixel rate is the maximum number of pixels the video card can possibly record to the local memory in one second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number 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 - the lower the memory bandwidth is, the lower the potential to reach the max fill rate.