GeForce 920M vs Radeon HD 6750 1GB

Intro

Compare those specifications to the Radeon HD 6750 1GB, which features a core clock frequency of 725 MHz and a GDDR5 memory speed of 1000 MHz. It also uses a 128-bit memory bus, and uses a 40 nm design. It is comprised 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

The Radeon HD 6750 1GB should theoretically be a lot faster 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 small bit (approximately 17%) faster with regards to 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 superior to the GeForce 920M, 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: Memory bandwidth is the maximum amount of data (counted in megabytes per second) that can be transferred past 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 the card has DDR type RAM, it should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The better the card's memory bandwidth, the faster the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.

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

Pixel Rate: Pixel rate is the maximum number of pixels the video card could possibly record to its local memory per second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount of colour ROPs 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 output rate also depends on quite a few other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the potential to get to the max fill rate.